BOULDER, COLO. JULY 1970
ESSA TR ERL 65-ITS 58-3
ESSA Technical Report ERL 65-ITS 58-3 U.S. DEPARTMENT OF COMMERCE Environmental Science Services Administration Research Laboratories
Tabulations of Propagation Data Over Irregular Terrain in the 230- to 9200-MHz Frequency Range
Part III: North Table Mountain-Golden P. L. McQUATE
J.M.HARMAN
M.E. McCLANAHAN
A. P. BARSIS
U. S. DEPARTMENT OF COMMERCE
Maurice H. Stans, Secretary
ENVIRONMENTAL SCIENCE SERVICES ADMINISTRATION Robert M. White, Admin istrator
RESEARCH LABORATORIES
Wi I mot N. Hess, Di rector
E55A TECHNICAL REPORT ERl 65-IT5 58-3
Tabulations of Propagation Data Over Irregular Terrain in the 230-10 9200-MHz Frequency Range
Part III: North Table Mountain-Golden P. l. McQUATE
J. M. HARMAN
M. E. McCLANAHAN
A. P. BARSIS
INSTITUTE FOR TELECOMMUNICATION SCI ENCES BOULDER, COLORADO July 1970
For sale by the Superintendent of Documents, U. S. Government Printing Office, Washington, D. C. 20402 Price $1.75
TABLE OF CONTENTS
Page
Abstract 1
l. Introduction 1
2. Measurement Program 3
3. Receiving Equipment 7
4. Transmitting Equipment 11
5. Data Presentation 11
6. Acknowledgements 16
7. References 16
8. Tabulation of Data 16
R3-0. 5-Tl 17
R3-0. 5-T2 20
R3-3-Tl 23
R3-3- T2 26
R3- 3- T3 29
R3-3-T4 36
R3-3-T5 39
R3-5-Tl 42
R3-5- T2 45
R3-5-T3 48
R3-5- T4 51
R3-5-T5 54
R3-5-T6 57
R3-5-T7 60
R3-10-Tl 63
R3-10-T2 66
R3-10-T3 69
R3-10-T4 72
iii
Page Site Number (Continued)
R3-10-TS 75
R3-10-T6 78
R3-20-T1 81
R3-20-T2 84
R3-20-T3 87
R3-20 -T4 90
R3-20-T5 93
R3-20-T6 96
R3-20-T8 99
R3-20-T9 104
R3-20-TlO 107
R3-20-Tll 110
R3-20-T12 113
R3-20-T13 116
R3-20 -T14 119
R3-30- T1 122
R3-30-T2 125
R3-30 - T3 128
R3-40 -T1 134
R3-40-T2 141
R3-40-T3 144
R3-50-T1 151
R3-50 - T2 154
R3-50-T3 157
R3-50-T4 160
R3-50-T5 168
R3-50-T7 171
R3-50 - T8 174
iv
Page Site Number (Continued)
R3-50-T9 177
R3-50-T10 180
R3-50 - TIl 183
R3-55-T1 186
R3-60 -T2 189
R3-80-T1 196
R3-80-T2 199
R3-80 - T3 205
R3-80-T5 208
R3-80 - T6 211
R3-80-T7 214
9. Meteorological Information. 217
v
TABULA TIONS OF PROPAGA TION DA TA OVER IRREGULAR TERRAIN IN THE 230- TO 9200-MHz FREQUENCY RANGE
Part III: North Table Mountain - Golden
p. L. McQuate, J. M. !"farman, M. E. McClanahan, and A. p. Barsis
This is the third part of a four -part report containing tabulations and graphs of transmission loss data resulting from propagation experiments in the 230 - to 9200 -MHz frequency range conducted over irregular terrain in Colorado. This part describes data obtained at a common receiver site, which is located on a high mesa near Golden, Colorado, over propagation paths varying in length from 0.5 to 80 km.
Key Words: Elevated antennas, irregular terrain, UHF propagation data
1. Introduction
The purpose of this four -part report series is to present
tabulations of transmission loss data for propagation over irregular
terrain in Colorado with path lengths ranging from 0.5 to 120 km at
seven frequencies in the 230 - to 9200 -MHz range.
The measurement program. was sponsored by the U. S. Army
Electronics Command and the U. S. Security Agency as a part of a
study of propagation characteristics under conditions resembling the
operations of an army in the field.
Part I of this series (McQuate, Harman, and Barsis, 1968)
presented data obtained at a common receiver site R1 located near
the summit of a hill in the open plains area near Boulder. Colorado.
Several of the transmitting sites were located in the mountains west of
Boulder; all others were located in the relatively open and rolling
plains area.
Part II of this series (McQuate, Harrnan, Johnson, and Barsis,
1968) presented data obtained at a common receiver site R2, located
in the mountains about 20 km west of Boulder. The mountains shield this
site from the plains. Only 8 of the 44 transmitting sites associated with
this receiving location are in the plains area.
This, the third part of the four-part report series, presents data
obtained from common receiver site R3 located on the eastern edge of
a high mesa (see fig. 1) at a juncture between the mountains and the
plains. The mesa, identified as North Table Mountain, is located
Figure 1. View of the common receiver site from
a point near the transmitter site R3-5-T1.
2
about 3 km northeast of Golden, Colorado, and is visible to most of
the 57 transmitting sites associated with the common receiver site.
This site was selected to represent propagation from the ground to
. low-flying aircraft. To obtain as many different propagation paths
as possible, all measurements were made with mobile transmitters
and a fixed receiving site.
2. Measurement Program
Figure 2 presents an overall view of the measurement area
and the distribution of the transmitter locations. It shows most of
the 57 measurement locations arranged in concentric circles around
the common receiving site at nominal distances of 0.5, 3, 5, la, 20,
3D, 40, 50, 55, 60, and 80 km.
Figures 3 and 4 are panorarnic views of the measureme nt area
taken from the antenna tower at the common receiver site. The bearings
are measured clockwise from true north. All transmitting sites lie east
of the mountains in the relatively open and rolling plains area. No
transmitting sites are located in the city of Denver or near the Stapleton
International Airport approach corridor east of the city. Most of the
transmitting sites were selected to provide a clear, unobstructed
foreground in the direction of the receiving antenna. However, eight
transmitting sites were selected so that the transmitting installation,
including the antennas, would be at least partly concealed from the
receiving antenna at the transmitting terminal by the surrounding
vegetation to represent a "concealed" location. Each concealed site
has a II companion" open site; i. e., a site with a clear unobstructed
foreground in the direction of the receiver. These sites are selected
so that they are not more than 100 m apart and have essentially a
common terrain profile.
3
Figure 2. Layout of measurement points.
4
Figure 3. Panoramic view of the northern sector from the common receiver site. Azimuth in degrees from true north.
700
Figure 4. Panoramic view of the eastern sector from the common receiver site. Azimuth in degrees from true north.
o 130
5
All transmissions were continuous wave and frequencies of 230.
410. 751. 910. 1846, and 9190 MHz were used with horizontal polari
zation only.
3. Receiving Equipment
The seven frequencies were divided into two groups and separate
receiver trailers and transmitter vans were outfitted for each group.
Figure 5 shows the low frequency group (230. 410, and 751 MHz) receiver
trailer at common receiver site R2 and figure 6 shows the receiver
trailer, at common receiver site Rl, used for the four higher frequencies
(910, 1846, 4595, and 9190 MHz). Both figures show the antennas
associated with each frequency group mounted on rnovable carriages
attached to identical towers. The carriage can be installed on any of
the four tower faces and can be raised or lowered between the limits
of land 15 krn above ground at a speed of approximately 0.6 m/sec.
A servo system, attached to the antenna carriage, drives a strip-chart
recorder upon which continuous signal strength versus antenna height
recordings were made.
Figure 7, a photograph taken from a ledge on the eastern face of
the mesa, shows the receiver antenna tower at the R3 location with the
910-, 1846-, 4595-, and 9190-MHz receiving antennas elevated about
11 m above the ground and the great difference in elevation between
this common receiver location and the valley below it. The photograph
also indicates that the tower is not erected on the edge of the mesa.
It is set back about 8 m from the edge to provide s pace for guying.
This set- back causes the edge of the mesa to obstruct most of the paths
at low receiver antenna elevations (at elevations up to 2.0 m above
ground for the 3- km paths).
The same type of transmitting and receiving antennas were used
for each frequency, and the electrical characteristics of each pair of
7
ctJ
Figure 5. The low frequency receiving unit at common receiver site R2.
Figure 6. The upper frequ ency receiving equipment at common receiver site RI.
9
Figure 7. The upper frequency antenna tower at common receiver site R3.
10
antennas were al.so almost identical. These parameters are given in
table 1. The voltage standing-wave ratio of the antenna systems, as
viewed from the receiver inputs, exhibited essentially no change as the
antennas were moved up and down the tower.
Propagation data for the higher four frequencies were obtained
between June 21 and August 5, 1966, and data for the three lower
frequencies were obtained between September 9 and October la, 1966.
4. Transmitting Equipment
The transmitting equipITlent was housed in two ITlobile vans;
one was used for the three lower frequencies, the other for the four
higher frequencies. Figures 8 and 9 show the vans at separate trans
mitting sites. The antennas were ITlounted side by side on a framework
attached to a rigid mast that pivoted in elevation and azimuth on a base
mounted on the top of the transmitter van. This arrangement assured
constant antenna height for each frequency group (6.6 m for the lower
frequency group and 7. 3 m for the higher). After the antenna assembly
had been raised and before transITlission, the antennas were oriented to
the path azimuth by a siting device ITlounted on the antenna mast, if the
common receiver location was visible, or with the aid of a compass when
the receiver location was obscured by terrain or atmospheric conditions.
5. Data Presentation and Tabulations
The data are arranged and coded as in parts I and II of this
report series; i. e., by path distance and for each distance sequentially
by azimuth counted clockwise froITl true north. For exaITlple, R3-10 -T4
indicates a 10-km path from the common receiver site R3 to transmitter
T4, which is the fourth site at the 10-kITl distance counted clockwise
from true north. Pairs of open and concealed sites are denoted by the
standard site designation followed by "open" or "0" for open or
11
Table 1. Antenna Parameters
Freq. in 1/2 Power Free-Space Gain Height Above Ground, m MHz Beamwidth Description A bove Isotropic, dB Transmitting Receiving
230 38 0 half-wave center -fed 6.9 6.6 1-15 dipole with reflector ( continuously
variable at all frequencies)
410 58° three-element Yagi 8.6 6. 6 with reflector
i-' 751 59° half-wave center -fed 7 . 9 6.6 N
folded dipole with reflector
910 52.5° four -element Yagi 9. 1 7. 3 with reflector
1846 33° horn 15.2 7. 3
4595 12.5° horn 19. 7 7.3
9190 12.5° horn 21.0 7. 3
I-' VJ
;
Figure 8. Lower frequency group transmitting unit.
IY)
/ 4/$ .
,,{\ / ;/
I I
Figure 9. Upper frequency grollp transmitting unit.
14
unobstructed sites, or "concealedl ! or II e" for sites that are at least
partly concealed by vegetation at the transmitter site.
The data for each transmission path usually comprise three
pages arranged in the following order:
The first page includes site designation and code with the
photograph(s) of terrain taken at the transmitter site in the direction of
the receiver.
The second page contains a graph of basic transmis sion los s
ver sus receiving antenna height derived from the path-los s measurements
with the site designation and code and measurement data for each group
indicated; only data from open sites are shown here. In addition to the
free-space basic transmission loss, values of maximum measurable
loss are also indicated for all frequencies, if the received signal level
was below the receiver noise level.
A number of these graphs do not show curves for all seven
frequencies. Curves for some frequencies are omitted because of
equipment malfunction, temporary inaccessibility of transmitter sites,
obvious calibration errors, and misalignments of antennas.
The third page shows aga~n the site code and includes the following:
(a) The path profile, with site elevation and path length
indicated, drawn in each case by using an effective earth radius
based on a surface refractivity value of 290 N -units. This
represents an average for the area where the measurements
were made.
(b) The results of the time recording before each height-gain
run, shown below the path profiles and designated II L b( dB) short
term signal variability". The 50 percent value is defined as the
dB value exceeded 50 percent of the time during the time recording
period and the 10 - 90 percent value is defined as the dB difference
15
between the levels of the received signal exceeded for 90 percent
and 10 percent of the time recording period.
(c) Field notes describing the terrain and significant obstacles
along the transmission path.
Additional pages (where applicable) include data for the "0" and
II C" pairs of basic transmis sion los s ver sus receiving antenna height,
and pertinent profile information, time run data, and descriptive
material related to the concea'led site.
6. Acknowledgements
Nearly all personnel within the Tropospheric Radio Systems
Predictions Group of the Insitute for Telecommunication Sciences
participated in the collection, analysis, and evaluation of the data.
7. References
McQuate, P. L., J. M. Harman, and A. p. Barsis (1968), Tabulations
of propagation data over irregular terrain in the 230 - to 9200 -MHz
frequency range, Part I: Gunbarrel Hill receiver site, ESSA Tech.
Rept. ERL 65 -ITS 58 (D. S. Govt, Printing Office, Washington, D. C. ).
McQuate, p. L., J. M. Harman, M. E. Johnson, and A. p. Barsis (1968),
Tabulations of propagation data over irregular terrain in the 230- to
9200-MHz frequency range, Part II: Fritz Peak receiver site, ESSA
Tech. Rept. ERL 65-ITS 58-2 (D. S. Govt.Printing Office, Washington,
D. C.).
8. Tabulation of Data
Propagation data tabulations are presented on pages 17 through
216. Figure numbers in this section have been omitted since all data,
pictures, and graphs are identified by the appropriate site code number.
16
R3-0.5-Tl EASLEY ROAD NOR TH
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 08 0 24' 55" T.
17
230 MHZ 101 71&& ......... 4tO "HZ R3-0.S-T1 751 "HZ -.-.-.. 910 "HZ 7125/&& ...... 184' MHZ EASLEY ROAD N "595 MHZ
9190 MHZ 70
--
.. -• 90 .0 .-u • 0
c: .-.. 100 .. 0
...J
c: 0 .-.. .. .- t to Ii .. c: 0 .. .... u .-• 120 0
CD
~ ~
~ . ' .... . +t. ~ . .... • • +
~ V"-- [\\ /r ~ ~-- • --.
" .... -.--/. " I-' .... ~ ""\J ...
I, " / .... "
/ .:" / .... .. , . I'. \ .• • •• 1 . .... ).. I 11 - •• , ."
.,' I ..... I ..... ~ r .. r; f I' •
I . I I I
.' /l I I ~ I .
• + // i\ 1\ /1 ,\ . -....... r 'l I I /. \ ,... ,
• I , 0' \ .. 1 , '. \. __ • ..J
0 7 7 • \' ~, . V/,' .... ' / • s . . I • I
If\-. .J " i - --0- /'
0 ,1,,/ • II I
0
" I • . /~/ . /7 CIl CIl 0
_/ I .'
~ • • I' .' (J)
I . .' () " //
!-~ I-I ,II"
} U) I I' 1
(J) . / (J) . 1
I' I !-I I I / r.,
,I
1
80
130
/ "'0 o 2 , 8 10 12 14 I' 18
An'lnftO H.igh\ Abov. Ground in "1'1"
18
t o
RCVR. ELEV. 1995 M
, . t
R3-0.5-T1 PATH LENGTH 0, 50 km
, .2
- 2000H
KIL.OHETERS
, .3
XMTR. ELEV. 1813 M
, ••
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
10-7-66 at 15 M 7-25-66 at 7.3 M
50% 80.8 84.6 80.4 84.9 90,8 98.9 105. 2
LHO%-90% <3 <3 <3 <3 <3 <3 <3
The path extends over grass and rocks for 70 m, then over rocks
and sage brush for 70 m. The terrain breaks at this point and rises
immediately to the antenna above the cliff.
19
R3-0.5-T2 EASLEY ROAD SOUTH
PA TH VIEW FROM TRANSMITTER
Bearing fro m common receiver site to transmitter site is 830 38 1 32" T.
20
II
to ..D
u .. a c
70
80
90
: 100 o
...J
c o II II
'E 110 II C a ..
to-
u
: 120 m
130
14 0 o
2'0 MHZ ....... 410 MHZ R3-0.S-T2 751 MHZ -.-...... 910 MHZ ...... 1846 MHZ EASLEY ROAD S 4595 MHZ
9190 HHZ
~ lr/- k~
. . , . . .. --• #~-- .. . /""'-,
. I ¥ ...... ,,/ ~j\ ," ."" ~" , ..
'it .. " /' ''', , / ' ... r"" ;. • ,. ~ , r', , " '. • .. ' 'I / " Y ,
" I " .' 1/ 1 .... \ . \ . , I II • " ,
f·," , • I " l 1"''''1 II .. • ..... II' II ••• ' " , , . , , . ,I ,
II . , , ' " './ -~.' -',- .... '-~ .... ~ .,--.. ':1 ' / I , , . r •
1/ ... 'r . --~
, . .. • I It " I . A
•. • I ,
I
, . /~/
I I
V I
I I I
I
/' I I
/' . . I / . i _/ . ,
~ . '" /".' .. '" L
, . ,. . I . . . , . . / . . . .
2 9 10 12 14
Aft\tftfto Htight Abovt G,ouftd ift Httt"
21
9/1&/"
7/26/"
--........
---.--
.....
--r--
(/)
(/)
0 ~ (J)
u m ~
-
(J) (J)
H ~
16 18
1 o
RCVR. ELEV. 1995 M
t . ,
Freq(MHz)
R3-0.5-T2 PATH LENGTH 0.51 km
- 2000"
- 1700"
t t .2 .5
KILOMETERS
XMTR. ELEV. 1783 M
t ••
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-16-66 at 15 M 7-26-66 at 7.3 M
50% 79.2 91. 2 88.3 85.7 94.0 100. 1 106.3
L}10%-90% <3 <3 <3 <3 <3 <3 <3
1 .5
The site is located in a farmyard. The first 30 m of the path are
clear, then there is a 3-wire fence with a horse trailer behind the
fence. The next 30 m are fairly level, then there is a steep rise to
the receiver tower. The ground covering is rock, sage brush, and a
small amount of grass.
22
R 3-3 -Tl CHURCH LAKE
PA TH VIEW FROM TRANSMITTER
Bearing froITl COITlITlon receiver site to transITlitter site is o
333 51' 53" T.
23
230 MHZ 9/20/&6 + ••••• .'0 MHZ
R3-3-T1 751 MHZ -.-.--. 910 MHZ "21 ,&6 ...... t8.' MHZ CHURCH LAKE .595 MHZ
9190 MHZ 80
• -• tOO ~ -u • 0
c: -• 1 1 0 • 0 .J
c 0 .-• • .- 120 Ii • c: CI .. .... u -• 130 CI
CD
...... - ............... f--'-.
~ V , . ,.\ .....
••••••• • • • .1": . .' • 4o. •• • ••••••• 6 , .'. • •••• .. .. , ~
~ - r.... .... , .... - J.... /'\ r---..... ~ -
~y-~_/ '--'I- I--'" ,. I -.--~ ......... 4
, \
! ".. " .... ,.. ... \ .. ... I I
*~ I" • , . , y .....
• ... 1' • ~. , ' , •• ,I •••
II II' • , . .... j'
, , ~: • I , __ II •
0 r· ... ,., , . r • , , :/ r !I'#
,
I r v-'--- .. /\ ., ---;~ " \,' h .,
t:A./"'-"""', ...... ... ,...J . \;
/"- \ I \ . I ,-. A ~ ". r' -V ~ V ~ .~ K --
~ ,
. I
I ,',I r--
(fJ
(fJ , 01--r ....:J Q)
90
()
-~ (/)
UO Q)f--Q) 1-1 ~ "-
150 o 2 , 8 10 12 ,. "
18
24
t o
R3-3-T1 RCVR. ELEV. 1995 M PATH LENGTH 3.06 krn
XMTR. ELEV. 1783 M
t .5
Freq(MHz)
50%
610% -90%
, t.o
- 2000"
- tUO"
t 1.5
I< I LO"ETERS
t 2.0
, 2.5
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-20-66 at 15 M 6-21-66 at 7.3 M
93.6 93.2 99.4 101. 8 107.6 116.6 119.6
<3 <3 < 3 <3 <3 <3 <3
t
"0
The site is on a curve in the road. There is a 4-wire fence just
behind the truck and another about 6 m to the right of the path. A
power line crosses the path at 0.8 km. The ground covering is wild
grass, and a clump of brush, which is to the left of the path. A small
irrigation ditch about 50 m along the path follows it for 30 m.
25
R3-3- T2 64 TH AND NOR TH QUAKER
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 240 49' 17" T.
26
250 f1HZ 9/20/" •••••• "'0 ""1
R3-3-T2 1S1 f1HZ -.-...... 910 f1HZ '121 I" ...... , ... , f1HZ 64TH AND QUAKER N1 "595 ttHZ
9190 ""1 70
(fl
(fl
0 >-4 (J)
u ro f-0..
80 (J)
(J)
lit -• 90 ~ -" • 0
c: -'" 100 '" 0 -' c: 0 -'" It - 1 1 0 • '" c: 0 .. t-
" -'" 120 0
CD
/ (J)
1\ ~
V- ~ .. .I:!. ~ ~ """ ... V ./\ ..•. \ J ." p. + .. ... : ..... . . .... ". .' . • + +. + . . . .. . . ' .... •• t • . . . •
t\ A / •• :r,...,f" A JI.
j:; ~I \ ~~~? .l, ,. t-7'1 .i ,.- ~ tl~ ,"" \, -.--r-.J\1\
,.:,..{, .. ~ , 'P. ~ 'I
\ • • :,' . ,. • .. I . ....
• •• I". " .. I .. ' I,II " •••• . '. . f ", " .... • .: .... ~".. ." ' ... ", ,., • , .. • I '" ... ,.
,J'/'" ,
~/"-V" ...... I'." ---r ,
,.~·"'''\/\ I\j ..... _. ,-, ~. , I' \ \'V,,:
\" ~ \' I: , J V ,.J
"'" if .~ ~ A-/ ~ ~ A,J r-y
130
'''0 o 2 .. , 8 10 '" " 1.
ARtlRRG HII,ht AboVI ',ouRd ia H"",
27
1 o
RCVR. ELEV. 1995 M
1 .5
Freq(MHz)
R3-3-T2 PATH LENGTH 3. 12 km
1 1.0
1 1.5
- 2000H
- 1 &OOH
I( I LOHETERS
1 to
XMTR. ELEV. 1710 M
1 25
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-20-66 at 15 M 6-21-66 at 7.3 M
1 5,0
500/0 96.0 92.2 102. 5 102. 5 108.3 116.0 119.6
~100/0-90% <3 <3 <3 <3 <3 <3 <3
The ground covering on this path is wild grass. A 4-wire fence
crosses the path at 30 m. At 0.4km, there is a low-voltage power
line, and also houses to the right and to the left of the path. At
1. 6 km, a new high-tension line is under construction.
28
R3-3 - T3 OPEN AND CONCEALED 64 TH AND QUAKER E
PA TH VIEW FROM OPEN SITE
Bearing from common receiver site to transmitter site is 37 0 51' 27" T.
PA TH VIEW FROM CONCEALED SITE
Bearing from common receiver site to transmitter site is 37 0 07' 08" T.
29
80
90
.. -• 100 A .-U • 0
c: -.. t 1 0 .. 0
...J
c: 0 . -.. .. .- 120 ~ .. c: G .. .... u -.. 130 G m
140
150 o
R3-3-T3 OPEN
64TH AND QUAKER E1
/ h V \ / J
/ :v'""'.., I"A,' 1 . .-... . .' "
j""' lJ / XI \ I
I /~ " I
• '10 ""' .. -r- \i. .. ,I", ., .. .'~r .1' I •
~~.. ,-~. '1"" /', . . _ .... "".' '.'
.';'" I
"V'" "',
I~ I
II _f'''' J _ >--,
V \ ( . ,
: .~ • I • , I
I" '
I / J I\A
// \ / I
I"
230 MHZ 9/20/&& 751 MHZ
-.-.~ 910 MHZ &1221&& , . . • .• '84& MHZ
4595 MHZ 9190 MHZ
I \ A
lJ \; V \
.\ J. I' J\ I --~A1~ ~ 'f\v,\ I~J V -.--I \ r \ I . ., \ , ~ ~f • 'If \. , I· ~,1 '~
II ••••
I· "
• .t''''" . .. . I:. e ,_ ••• .. . . ~ . .. . ,...""", ---
'\.. .0 . Y\"
"-... -~ -• [J)
I~ [J}
0 ...::j
, (j)1--
U
-~ r.J)
(j) (j)
H ~ ~ ~
2 8 to 12 14 18
An\.nnG H.i,h\ Abov. Ground in H.t"s
30
RCVR. ELEV. 1995 M
, o
Freq(MHz)
1 .5
R3-3-T3 OPEN PATH LENGTH 2.93 km
, 1.0
- 2000M
• 1600M
t 1.5
KILOMETERS
, 2.0
XMTR. ELEV. 1713 M
1 2.5
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9 - 20 - 66 at 15M 6-22-66 at 15 M
50% 92.7 93.4 101.3 112. 3 128.4 134.5
610% -90% <3 <3 <3 <3 <3 <3
6-22-66 at 7.3 M
50% 105.3 106. 9 112.3 131. 0
610%-90% <3 <3 <3 <3
6-22 -66 at 1 M
50% 129.8 125.3 139.9 145.0
1Il0% -90% <3 <3 <3 <3
The terrain covering is wild grass. There is a 5-wire fence on
one side of the van, with a 4-wire power line 2 m above and 4 m in
front of the antenna.
31
R3-3-T3 O&C
64TH AND QUAKER E1
80
t ~ ?\ .... ~ r.:--\ •••• 1 ..... :y f \
v.' • • [{ / . . • . • I •• ' •
/ • " .. V . • ...
9/20/66 • 230 MHZ
90
100
1 10
. -- OPEN • I •••••• CONCEALED -•
• . • - • • .0 .-
" • 0
c: 120
-• • 0
...J 90 c:
0 -• • -a • c: 100 ., ...
t-
" -• ., II)
110
120
A A /I AJ ~ ~ It Y. V f~~ . ..
.' ... . . . A •• • . . .
••• IIV . ' . · . .. . • • • .. . . . .. •• • .. •• f·· . • • • . ~. . . . . . . . · . . / • • . " . '. '. . • • • • ,
V • • • • • • • . • • • • . ' . • , •• • " • • 'j 751 MHZ 9120/66 -- OPEN ...... CONCEALED
r I 130 o 2 , 8 10 12 "
18
32
..
R3-3-T3 O&C
64TH AND QUAKER Et
90r-----~----~--~~--~----~----~----~----~-----_,
100~----~-----+----~------+---
110~----~--~~~~--~~--1_'+'~'~:--~---4--~--~~~------~----~ . ,. . .
" .. • • ~ 120~--~~~--~----~+------+------~----~ 910 MHZ &/22/&&
OPEN u • o c
••• "". CONCEALED
: 130~-~--~----~------~----~------~-----~-----~------~-----~ o ..J
c o .. .. E 1 00 r--~ --- - ----r------,--------,----------r---r------ -----.-----, .. c ., .. .... u
110 ' ~rv--v\I\/\ : ~--+--~--~~~V~~~~~~--~y~v~V~!~~~~~-~~~
/ . ,. / . t., + •••• _.~, ••••• '\ ••• '
_tc ."".:"0 .. : \ .. \" • +; 120~---/~-M----~--~~~.~.~~.~~~-----4----~----~-----;
• • • .t ••••
• ' +. ...... • :.: • • ..: ~- •••• +.: + • •
" : 18"& MHZ 61221&6 130 t----r:-+---+----+---+----+--~I__ -- OPEN -
: •••••• CONCEALED " .
'''O ___ ·~ ______________ ~ ______ ~ ____ ~l ___ l __ ___ o 2 .. & 8 10 12 ,.. 16 18
An,enno Hei,h, Above Ground in "ete'I
33
• -• .a -" • 0
Co .-• • 0
..J
Co 0 -• • -a • Co 0 ... t-
" -• 0 m
R3-3-T3 O&C
64TH AND QUAKER E1
no v-v Vv ~~
~ ~ ~ ~
~ / ......... , M
••• • ••• .. 100· .... " .... 1-"" .' • •• , .... . ...
/!' \0 ' ....... •••
120
130
t 140 · 4595 MHZ &1221&& -· -- OPEN • · ...... CONCEALED
150 I I
11 0
120
140r---r-+-----4------~----~~---_4------r_ 9190 MHZ &/22/&& OPEN
· • · •.•••• CONCEALED
1500~-L~2----~4----~&-----8~--~,0-----,~2-----,~4----~,&~----,8
34
, o
RCVR. ELEV. 1995 M
, .5
Freq(MHz)
R3-3-T3 CONCEALED PATH LENGTH 2.90 km
, 1.0
- 2000H
'. , 600H
, 2.0
XMTR. ELEV. 1713 M
, 2.5
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-20-66 at 15 M 6-22-66 at 15 M
50%
LHO% -90%
50%
610% -90%
50%
fll0% -90%
92.6 109.6
<3 <3
106.8
<3
109.8
<3
122.0
<3
116.6 129.2 129. 7
<3 <3 <3
6-22-66 at 7.3 M
123.8 124.9 129. 7
<3 <3 <3
6-22 -66 at 1 M
132.8 143.9 146.9
<3 <3 <3
A large tree is in the immediate foreground. A power line and a
fence run at 300 to the path. Beyond the tree is an open space for
50 m. then another tree. behind which is a dry lake.
35
R3-3- T4 64TH AND MCINTYRE S
PATH VIEW FROM TRANSMITTER
Bearing from common re8eiver site to transmitter site is 44 07' 21" T.
36
80
90
.. -• 100 .D .-U
• a c . -It 11 0 .. 0
...J
c 0 .-.. .. .- 120 .. It C G ... .... u .-It 130 G m
'.0
150 o
R3-3-T4
-,.-..... 910 MHZ &/221" .. .. •• I e., MHZ
4595 MHZ 9190 MHZ
64TH AND MCINTYRE STREET
. , ('. \ ~. ,. .
\, .. · .... A / ."..~ v '/ . I ~ ,. ; ~ \ !;"\.Ir · -I--
I' " . \ .
I ,\ '1 " .. .~ " ,
'1 i." ... i , I' ~. . ,/ ., , ........ ." ',- \1.
:y . "'. .. " . .... • • II II • . . ... " ... •
" . . .. . • ,1' I ••
.. . . . ---f
/'.,," ..... N'/'" V'J--""'- -, v-I.' \
\. / II \/',," ,
1 ~ ~ ~
/ --
"\\ r'
/. ,
~ ~ ,
r0o-f ,
~ Ul . \. ,/ 0 I ...:1 -I III" 'v (\)
u ro 0.. U),
(\) (\) f--l-i ~ .....
2 6 8 10 12 ,. "
18
Aftt'ftfto H.i,ht Abov. 'rouftd ift H.t.rs
37
, o
RCVR. ELEV. 1995 M
t .5
Freq(MHz)
50%
LHO%-90%
R3-3-T4 PATH LENGTH 3.12 km
1 1.0
1 1.5
- 2QOOH
- 1 &OOH
K ILO"ETERS
1 2.0
XMTR. ELEV. 1722 M
1 25
1 '.0
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
6-22-66 at 7.3 M
101.8 110.3 117.6 122.0
<3 <3 <3 <3
This path extends over fields of alfalfa, wheat, and weeds, to a
low barn at 0.4 km. There are 10-m trees behind the barn, and more
buildings to the left of the path at 2.4 km. There is a 5-wire fence
that runs 1 m from the van.
38
R3-3- T5 LOVELAND STREET
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 1270 22' 56 11 T.
39
230 MHZ 9/"1" ...... .'0 MHZ R3-3-T5 751 MHZ -.-.--. 910 MHZ 7/27/"
STREET .595 MHZ LOVELAND 9190 MHZ
70
80
.. -• 90 ~ -v • 0
c -.. 100 .. 0
..J
c 0 -.. .. - 110 • .. c
" .. t-
V -.. 120 " CD
l----.. --..-/ ....
~ V V kS .....
/. .........
.t' • /-v . ~ , ... ~ .A<"
"" --V ," x: i'-~~ l/ • , .. ~ .... ,. ./ \.~
# .. , • -. -• + •. J.J ~ r.: ' . "\,
! ~ ',? . ' ,. ,// , ,. • .. , " , . • . "'/ " ". ''" . • . .' , " • ,r / • •
'" • • .. _/ ~ "'\' \/\, .... ~.J'" ,'~tv'-' J V"--' " ','~ \ ,,--- f'o ... , #.., ---/ ' \.. ........ '\ ,j-./ ,-
I ~ ;' \JI -
/ ~ ~ ~ r--~ ~
I"!"i til 0
....:l Q)
ufo-I C'd
p.., 130
Cf)
Q) Q)
~ '.0 o 10 12 " 18 , 2 8
40
t o
RCVR. ELEV. 1995 M
1 .5
R3-3-T5 PATH LENGTH 2.96 km.
1 1·0
- 1950M
1 1.5
KILOMETERS
1 2.0
XMTR. ELEV. 1694 M
1 25
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-16-66 at 15 M 7·-27-66 at 7.3 M
50% Ill. 1 100. 7 97.3 101. 8 113. 7 120.3
lIl0% -90% <3 <3 <3 <3 <3 <3
The first 300 m of the path is a field of dry weeds. The path
then crosses two streets that have power lines and telephone cables
along them, as well as railroad tracks. There is a house with metal
buildings beside it, and 15-m high trees behind it.
41
R3-5-Tl PA TTRIDGE EAST
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 330 0 46' 48 11 T.
42
230 HHZ T 01 71&6 ...... 410 HHZ R3-5-T1 751 HHZ -.-........ 910 HHZ '/23'" ...... 194' HHZ PATTRIDGE E 4595 HHZ
9190 "HZ eo
.. -• 100 ..0 .-v • 0
c -It 110 .. 0 -J
c 0 . -.. It .- 120 & It c 0 ~
t-
v -It 130 0
CD
L;-V-
'""" l,/'- -- tv --•••• . .....
• • • • . . . . . . . . . . . / · . '. . . .. . .. . . .. . . . ' .. 41 •••• .
v.' '. ,,-'''''''''
I _.~rl-.._._ '", ... /'.. .
~~ I~ --. --~\---. v"""'" .""' "- -.--
/- '\ I' I ", ~~ /" "\ . .,'
J\ , \ . .,! , V ,'" I. I \( I I \ r \. '~I \ ..... ,'i tw. II I ", f \ , \
• , :/ I' II I" .. \ . • . . \ .
III
I ~ • • I (- 'I • II I r ,\ . / ... \ .' II' • I .~ I
II • • r \~ I J. ... 1/ ~'. I .. I •
I I I ,'" .. \ I -\ ..
~ ~M/ ~ I\l RfV V\ ../'V\, \ I \ I ! , --'. I \ I I, ,.... , I I , \,' ~ U'J
I ,- I U'J I---
" J I I 0 I I 1/ ....:l 01 I I f I r Q) I I
0 · .
90
.~ • I .. : U)
1-140 Q) Q)
I-l ~ ~
150 o 2 , 9 10 12 ,& 19
Aftl'ftftG H'i,hl Abov, Grouftd ift "'I'"
43
, o
RCVR. ELEV. 1995 M
Freq(MHz)
R3-5-Tl PATH LENGTH 5.02 km
- 2000H
XMTR. ELEV. 1832 M
'-----------~-~----------------~
, 2
- "OOH , , t •
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
10-7-66 at 15 M 6-23-66 at 7.3 M
50% 93. 1 100. 1 112.5 114.6 116. 1 113.4 126. 5
610%-900/0 <3 <3 <3 <3 <3 <3 <3
The site is on a bluff, which is 30-m high. The path crosses
the highway three times: at 50 m, 0.4 km, and 1. 3 km. There is a
lake at 1. 6 km.
44
, 5
R3-5- T2 PATTRIDGE El
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 3430 46' 48" T.
45
230 MHZ 101 71" •••• + .. ~tO MHZ
R3-S-T2 751 MHZ -.-.-... 910 MHZ &/23/" .595 t1HZ PATTRIDGE E1 9190 MHZ
70 r--Ul (J)
0 ...:I (J) ()
.~ r--
U)
80
(J) (J) .. - J.I r", • 90 .a -
u • 0
c . -It 100 .. 0
..J
C 0 -It It .- 1 to & It
L- /'"-. ;-
"" V ~ k:
I---/ . --.' . . • ...... • v.. L . . . . . . ... 0' . ••• '. . • •••• ......
L'""' 'V'" • • ...L::!>.
I;: \ /\.~ / \V V'\./, v",,_/\ ~./0 "/'v ~,. \ --~\ ,~\ /,., (,-,\?,> .-' ......... '. ' .... 1,\ I -', , -.--// '~ f.
" ~ .. " \ I I , p'
• I I \ r \/ \'
I './ C IS ... ~
u -It 120 IS
CD
---~-- . '" . 0 ... _ •
t-- '-""' ....... ' '" ,~.- -' .
vt ~. ~ -""" -- --130
'.0 o 2 8 10 12 18
46
R3-5-T2 RCVR. ELEV. 1995 M PATH LENGTH 4.97 km
XMTR. ELEV. 1812 M
1 o
1 2
~ 2000H
- 1&00H
KILOMETERS
t 3
\'----
1 4
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz)
50%
610%-90%
230 410 751
10-7-66 at 15 M
91. 6
<3
96.6
<3
910 1846 4595 9190
6-23-66 at 7.3 M
106.9 120.2 123.5
<3 < 3 < 3
The path extends over wild grass. A power line is nearly at a
right angle to the path at 130 m.
47
R3-5-T3 TUCKER LAKE NEI
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
08 36 1 04 11 T.
48
.. • .c
v • o c
70
80
90
: tOO o
..J
c o .. .. "e 110 .. c a .. t-
V
: 120 CD
0
tAO o
230 11HZ •• 4' .... ~ to MHZ
R3-5-T3 751 MHZ -,- ....... 910 MHZ Ii ••• I • 18~6 11HZ TUCKER LAKE NEl ~595 11HZ
9190 11HZ
I
/,: ~ ./
.. ( :---- r\V\ ' , ' , ....... :'. • L.t..· , , ' •• • •• , ... ' ~ . J' . 1J ;t:-" •
"J\ I'- ' ..
6t.~;\/ -"' . ~, 11-, r,/\ ~~ " )- \... ... r\ ,. '- \; .. ./ " , . \-" "'~'" .. ' ..... , .--..., \' '.\1' ~
17 1 1 ....... ,,# .. , ~ .
I ,,' 1'-, , . .. • , ". I' ... " ,- .... -. • • • , • , , h .. ' . , . , .
I .... •• , •• '. ," , • I, • 1(', •
" II " ' I , ' " • : .... I , -,-V",. _ .. _ II • '. 1--"- .. "
__ ro-I ' ~ ... ., .
U I, f- • I,' , ...::.
~ "~I ......... ........... r- " i--I- - . -.;.'" V .. ,
I " I ., I
8 10 12
Anl.nna H.i,hl Abov. Ground in 11.1.r,
49
9/20/6&
6/2~/6&
Ul Ul 0
...4 (J)
u
!~ r--U)
(J) (J)
H ~
--...... ---.--
.....
- -
--
16 18
t o
RCVR. ELEV. 1995 M
Freq(MHz)
R3-5-T3 PATH LENGTH 4., 96 km
, 2
- 1950H
- 1550H
KILOMETERS
, 3
XMTR. ELEV. 1746 M
, ..
-
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-20-66 at 15 M 6-24-66 at 7.3 M
50% 93.3 98. 1 104.4 106.2 118.7 119.8 123.7
610%-90% <3 <3 <3 <3 <3 <3 <3
--
The ground slopes downward in the immediate foreground of the
path. The ground covering is wild grass and weeds. The path is
crossed by an irrigation ditch at 25 m, and by a power line and a
one -wire electric fence at 28 m.
50
R3-5 - T4 74TH AND MCINTYRE
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is
27 0 09' 32" T.
51
80
90
.. -• 100 .Il .-1\1 t
a r: .-.. 1 10 .. 0
..J
II: 0 . -.. .. .- 120 e .. r: 0 ~
t-
1\1 -.. 130 0 CD
140
150 o
R3-5-T4
230 HHZ !/22/66 .••••• 410 f1HZ
75t f1HZ
74TH AND MCINTYRE STREET -.-.-. !10 MHZ 6/24/&6 ...... 1846 MHZ
45!5 MHZ !1!0 HHZ
v. ~ l/ ~ ----/ • • 0 . . ... . ' . . .... . . . . . • • •
# • + .... .. . . • • • .... • ••• • • . ~~/
• 1\ IV ......... " 1'-" .. /\.1\ '\/V .~ /\ .I r--v- J \ --• ........ ' ... ~ .I''/\( .f '., / II ... • • \ ..... , ~. , ......... -.--" V '-oy ,., .. -...... ,' '\/ "'111\ II'
'y' .\~ ,-. f ... • . "".1 I •• I: I'. II. ,', II. • ..." ~ '* .
.' .... I' 'I" jI_ ...... I 'I '.' . . .... ..1 • • l 'I' .. , . . . . . . ---
I 'V'-'<I',-~---- '--'~ - .-----1----- -. I ......... _.-.' ","'"
'(V ~ --
I co co 0 ~ <Ll t)
ro ,g -<Ll <Ll ~
~ '-
2 8 to 12 ,~ 16 18
An\.nno H.i,h\ Abovt Ground in Ht'tr,
52
1 o
RCVR. ELEV. 1995 M
R3-.5-T4 PATH LENGTH 4.86 km
- 195011
- 155011
1 1 2 !
KILOI1ETERS
XMTR. ELEV. 1708 M
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-22-66 at 15 M 6-24-66 at 7.3 M
500/0 93.4 99.8 102.9 109.2 112.6 122.2 123.9
6100/0-900/0 <3 <3 <3 <3 <3 <3 <3
The path extends over ground covered by wild grass and weeds.
A fence and a telephone line cross the path at 25 m. Trees about
20-m high are on the path at 0.4 km.
53
R3-5 - T5 RALSTON CHURCH
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 35 0 09' 09" T.
54
230 "HZ 9/22/6& • ~ t ••• ~10 MHZ
R3-S-T5 751 MHZ -.-.~ 910 MHZ '12~/6&
• II •••• 18~' MHZ RALSTON CHURCH .4595 MHZ 9190 MHZ
80
" V ~ ~ N rv rP\ V'" --•
90
.. -• 100 ..a .-u • a &: .-.. 11 0 .. 0
...J
&: 0
/ • . . . ' . . . . • • • . .... ~ .. . '" . • •• • .. . . I.
. . . . '. . · . . . . ' .. . . . . . . . . • . . . . . • . .' • ~ i' • \ /.
• . "\ --.
I'S r~'/ ~./n ~/\ ;:\1 .
~'X A~ -1--. • f\ t\,L.! ~ "f'.~.~ . . , - 1-'''' '/ J v' /~I ,
\ 1/ 1/ \ " .J r1 it II, "I, ,. ," , f,,:q', r ," • • 'I • I. ~,v:.: '''''r' ,-, " ,.' II. • \,.' -. II,
I II. a ••• .. . .... , , , 'I ': .: • •• 'I ,. , '. I .... ' ' " '. II •
,. 'e' o • . . - , .. .. , , , .- 120 Ii ..
&: 0 ...
!', . ,...A" ............ --' .. "" ... ~-,..." ... -' ,--- ........ - .' "1'1'-'.'- 'V-", ....
I I .....
u -.. 130 0 CD
--1(\ ~ ..... --
I CJl CJl 0
,..:j
IJ) ()
~ I---(/)
1.40
<ll IJ) H ~ .....
150 o 2 , 8 10 12 1& 18
55
, o
R3-5-T5 RCVR. ELEV. 1995 M PATH LENGTH 5.18 km
XMTR. ELEV. 1695 M
Freq(MHz)
50%
LUO%-90%
, 2
- , 950H
- , 550H
, '5
KILOHETERS
, •
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-22-66 at 15 M 6-24-66 at 7.3 M
92.8 101. 5 103.4 108.5 112.2 122.0 125.0 A
<3 <3 <3 <3 <3 <3 <3
The path extends mostly over wild grasses. There is an
irrigation ditch with a small tree in the ditch at 10 m. There are .r;:-
orchard trees, 6-m high, at 125 m. A power hne cr;sses the path
, 5
at 0.4 km. A fence and a telephone line run 1 m from the van, but are
1 m below the antenna.
56
R3-5-T6 MOUNT OLIVET
FA TH VIEW FROM T RANSMITTER
Bearing from common receiver site to transmitter site is a 96 14' 56" T.
57
230 MHZ 91 9/&6 •• + ••• 410 "HZ
R3-S-T6 751 MHZ -.-.-.. 910 "HZ 7/28/&6 ...... 184' ttHZ MOUNT OLIVET 4595 11HZ
9190 "HZ 80
90
.. -• 100 .Ii . -... • 0
c -.. 110 .. 0
...J
c 0 .-.. .. - 120 & .. c
V'-- --/. ~ - -~ ~ V-- . ....
• • • •• . .. • Ii .. ' • • , ..... ..... . " .. • . /-.......
~~ ... .." • . . . . --V "- .:1\. / \'·7'- ~.~~ ,,/\~,
. ~
-.--,1" -., ~/"'Yf " '- .t\-" ~ " .. , ./'.,/' I ,., ........... ..... .,.-. ... ......" ",', ~. • /~I . V ' •
i' " . ., . ....
' .. ~ ..... I .'
. * ~ •• ' D •• I, ··'a··· . .,·I~ • II • .',1.' . . .. • 1._. I'. II .......... . . '. • • . .. . . . --- ,. , -- -. ., "'
11' • ..,,--- --". " G ... ..... --
" -.. 130 0 m
f\~ .. ....... ..-. 'Uir--V Ul
0 ~ iJ.) t)
-~ ~ '(f) 140
iJ.) iJ.) !-I ~ '-
150 o 2 8 10 12 14 "
18
An\.nnQ H.igh, Abov. Ground in ".\.rs
58
, o
RCVR. ELEV. 1995 M
Freq(MHz)
R3-5-T6 PATH LENGTH 5.21 km
- 2000M
- t500M
Lb (dB) SHOR T TERM VARIABILITY
230 410 751 910 1846
XMTR. ELEV. 1673 M
, ..
4595 9190
t 5
9-9-66 at 15 M 7-28-66 at 7.3 M
50% 96. 7 104.5 105.8 109.9 114.8 120.0 130. 1
610% -90% <3 <3 <3 <3 <3 <3 <3
The site is located between railroad tracks and a road. There is
an olive hedge, 3-m high, which is 25 m along the path, with 7-m high
trees behind the hedge. There are large, 20-m high trees at 400 m.
59
R3-5-T7 ROLLING HILLS NE 1
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 115 0 31' 00'1 T.
60
70
80
'" -• 90 .G .-U • 0
£: . -.. 100 It 0 ~
£: 0 .-'" It .- 11 0 6 It £:
" .. ... u .-It 120 " CD
130
"'0 o
R3-S-T7
ROLLING HILLS NE1
230 MHZ 9/12/" •••.• • • 10 MHZ
751 MHZ -.-.- 910 "HZ 7/28/6& • ..•.• 18.' MHZ
.595 "HZ 9190 "HZ
til til 0 ~ (1) u
.~ f--
U)
lJ~ H ~ L-
V--~ V' h-/ ~ --
~ ~ .. . . . .0 • , ...... o· . . . . . .' ., .... • . . . . . . ~. ~. ~~ .. ,/, /\( L/\ /'\
•
1- · " .... 4 ....
/\J\ --' .. "",
t\/ p' ) , / .... , v ,\AJ'./ -,--.
,.',\ J" . I' -~ • ~;"I '\ ' . .~ I' '~I ' • ',,,,r , , , I . ..'
I • . • I ,I •
~ V . .... , . I .
I • .. . I . . . II II • • I I I I I I . . ., I' ,
II, ., . . I • . " • I •• . . " ...... . , , ", ,. .' .. '0' \ • • , . 'I' \'
I .. I • I I • .. ' '.' '0 , ,
... " ,\ "".J ...;-.. -- .~. ~-• V 'i ' .- -- --
NY -fV ............ ..".--.. ~ t---t- --
2 8 10 12 ,. 1& 18
Ant.nna H.i,ht Abov. Ground ift H.,.r,
61
R3-5-T7 RCVR. ELEV. 1995 M PATH LENGTH 5.02 km
XMTR. ELEV. 1661 M
, o
Freq(MHz)
50%
LHO% -90%
1 2
Lb (dB) SHORT
230 410
9-9-66 at 15 M
95.2 114.9
<3 <3
- 2000M
- 15001'1
KILOMETERS
t 5
, 4
TERM VARIABILITY
751 910 1846 4595 9190
7-28-66 at 7.3 M
96.6 108.8 113.9 118. 1 124.6
<3 <3 <3 <3 <3
, 5
The immediate foreground of the path is covered with asphalt and
piles of asphalt. Clear Creek is 50 m away. The next 200 mare
covered with 18-m high trees.
62
R3-10-Tl ROCKY FLATS CLAY PIT
PATH VIEW FROM T RANSMITTER
Bearing from common receiver site to transmitter site is 3420 42 ' 12" T.
63
80
90
" • 100 ..0 .-u • 0
c: .-" flO " 0 oJ
c: 0 .-" " .- 120 Ii
" c a ... ~
u -" 130 G m
UO
150 o
230 MHZ 9/22/" • • • • • • ., 0 "HZ
R3-10-Tl 751 MHZ
ROCKY FLATS CLAY PIT -.-.-. 910 MHZ '/2.1&& ...... 18.' MHZ
.595 MHZ 9190 ~Z
I ~ 0
I ,...::j
ill U
.~ r-U)
ill ill
~ ~ ,~ " - -V· .~ .. / r· .v. -• • ...... .....
t . W:'· '" . . • • + •• . ..-• .. .., .... .. , . .... ........... !(" •
\ .. \. / r"'\ -;"'\ /' .J/'\ 1\ ~""....,...- -", I, ~ ... JL~ · A ... I _.~ ~ 'V' J V
~ '\ IV' I ~~ , \"!' ,", f' ~"".,,......' I'\. -'-''''\' '. -.--a", ', .. rl l \ I ",I '/ \.. ... •• .\ I .. • . I. 1ft: • . . " • II • . --
• .., I", ; ......... ......... ' .... - • • • • • It: ..... I' ... ' ..... '" • •• I I • . - -- . - II »:t .. ' .. .. . po • • . - 0- .. • ~
. ----.---- _.
~ .. , lJ'l. ... '\otI,.-' ~'-~." '. - . .......-....... .. --- .- ... _ ....... If --
2 8 10 12 "
18
64
R3-10-Tl RCVR. ELEV. 1995 M PATH LENGTH 10.04 km
XMTR. ELEV. 1893 M
, °
Freq(MHz)
50%
LHO%-90%
t 2
t •
- 2000H
- '600H
KILOHETERS
1 , , 8
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-22-66 at 15 M 6-24-66 at 7.3 M
100. 1 102.6 109.6 109. 2 11 7. 1 128.2 129. 1
<3 <3 <3 <3 <3 <3 <3
The ground covering on this path is wild grass. There are two
small trees on either side of the path on the 3-m high bank of an
irrigation ditch which crosses the path at 0.4 km. Power lines
cross the path at 0.8 km.
65
, 1 °
R3-10-T2 POLE CORRAL
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 07 0 54' 23" T.
66
"
R3-10-T2
POLE CORRAL
230 MHZ 9/22/&& ...... 4tO MHZ
75t MHZ -,-,-.. 910 MHZ &/271&& ...... 184& MHZ
4595 MHZ 9190 MHZ
90~---~------~------~-----r----~----~----~----r----.
TOO~----~----~--~~--~~--~----~------4----~----~
.......
: T10 ~------+------~----~----+.------~------t------i-------r------1 u • o c:
-iJ--
V~L/~~~rv~ ~ 120 l---I--~~.'-.-'.-'-'.-'~.~---'-'-'~"-'-.-'-.-'+-'-.-'-.-'.-.~.-.-.-.-.-~-.• t--.-.-.-~-.i-.-.-•. -~--.. -t------1 c .. •• • •• o ... +.. ---
•
u
,.... Ul Ul
"0 1 ~ 0 l--~.....I----+-----+---+----+----:+.-:-:--~-:-;----t--1 ~ f--.. .--.. • •• ...... ,-.... •• 1-1
, • II II ., • • • L.. • • • • ..... I ..... ' • 1.1 .... CD •• •• - .. '.. • " .,.. •••• • po : .....
--1&OOL-----2L-----4L---~&~--~8----~10----~,2----~t.~--~t'~--~t8
Ant.nno M.i,hl Abov. 'round in H.l.r.
67
R3-10-T2 RCVR. ELEV. 1995 M PATH LENGTH 10.11 km
XMTR. ELEV. 1757 M
1 o
Freq(MHz)
50%
Ll10%-90%
50%
Ll10% -90%
50%
610%-90%
, 2
- 2000"
- 1 &00"
1 1 • &
KILO"ETERS
1 8
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-22-66 at 15 M 6-27-66 at 15 M
119.0 124.0 129.7 131. 5 139.6 148.8 153.0
<3 <3 <3 <3 <3 <3 <3
6-27-66 at 7.3 M
131. 7 141. 2 149.4 154.8
<3 <3 <3 <3
6-27-66 at 1 M
135.5 143.3 150. 1 153.8
<3 <3 <3 <3
In the foreground of the path, there are 300 m of wild grass,
followed by 300 m of wheat fields. Fences cross the path at 70 m
and 200 m.
68
1 , 0
R3-10-T3 POLE CORRAL El
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 16°25' 18" T.
69
230 MHZ 9/221" ...... 410 MHZ
R3-10-T3 751 MHZ -3·.-' 910 MHZ '127/66 a " iI I li • 184' MHZ POLE CORRAL E1 4595 MHZ
9190 MHZ 80
rJt ell 0
...:l (l) u
.. -• 100 .D! .-U • a .: .-'" 11 0 It 0
...J
c 0 . -'" '" .- 120 E .. .: 0
.~ r-
/l U)
(j) (j)
./'.. /'" ~ -v--.... ./ ~
....... I..--- 1"-./ VI .. V:, ". • • • ••• . . .. . .. .. . • •• .. ...... ........ (./
I< •• . .. .. .. .. + ..... " . ......... Xv'"
' .. • .. ,
\/ "' ........ /\ I./'../V ~- ~_/\/\ I 1\ A '/ .... / ......... / ' "y-- ~r'v \ -.--
-i"'v'"'' • ..,. '.1 ....
r f- •. , r . /\....t ~ ... B .... \/r'II ....
' ..... fa· \ . P...,.I •• ". , '. II •• I •
" ....... . .',181.' •• ,. '.' •••• , I . oil, ••• ... . ~ . ~. , ....
"0' I ,.
90
~
~
\of . -.. 130 0 m
, f· 1\ ---V ' " ,- •••• 0 • ~----
'\1\11 -- ............. - -. -V ---- -'" . - ...... ~...",.--
140 -
150 o 2 8 10 '2 14 "
18
Ant.nnc H.igh\ Abov. ',ou~d ift Hett'.
70
R3-10-T3 RCVR. ELEV. 1995 M PATH LENGTH 10.20 km
XMTR. ELEV. 1717 M
1 o
Freq(MHz)
50%
lHO%-90%
1 2
- 1950"
• 1550"
1 1 . , ICILO"ETERS
1 8
L (dB) SHORT TERM SIGNAL VARIABILITY b
230 410 751 910 1846 4595 9190 9-22-66 at 15 M 6-27-66 at 7.3 M
97.6 102.8 110. 1 114.0 118.7 127.2 131. 8
<3 <3 <3 <3 <3 <3 <3
1 10
The terrain of the path is smooth, covered by a wheat field for
the first 0.4 km and then plowed fields for 2.4 km. A fence crosses
the path at 10 m, a highway at 2.4 km, and a railroad track at 2.8 km.
71
R3-10-T4 80 TH AND KIPLING N
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 50 0 57' 52" T.
72
..
R3-10-T4
80TH AND KIPLING N
230 HHZ 9/22/&& 75t HHZ 910 MHZ &/27/&&
...... tUG HHZ 4595 HHZ 9190 HHZ
90r---~r----'r----.-----.----~----~----~----~----~
tOO~----+-----4-----~-----+----~------'~-----+----~~==~
~ 11 Q r---t-/---::7"'-9-"",-O;;;;:---i~-:;;:::::::t-r--./~~~---=i::;;;:::;;::-........;/-r""I.:::: __ ~-+-_-. _--f_
; t20 ~-'~~~~--~--~~---+------+---~~--~~~~~~~--~-4--"-'-'-.~ o f I ",/ "'_ "'../ A. ~.- --....", -..... ~ '/''''''' -'"
-J 1._ _ ~ , C If \ 1 I"\_.~-~.--..y ... -.".'" 'y."··.·.,r~ ........... .;--a- ......... ---o I}'})" -/ ', . .. .. I "& 130~----+-----~-----4------+-----4------+------~----~----~ .. C o ...
to-
u
. . . ................................ ,. .......... 1- ............ ,-" •• ", •• I I, •
~ (/)
: 14 0 t--------+--------+-----+------+-------~----_+__----_4------_+__I 0 --m ~
rJ"- " ... , ,,'" <l.l ... , .,J'-...., ../, " u
," I, ~J' cd \ "''\",. , , ,./' - ,.., \
a ;"""'" ',' ,,1"," \ ~ ,,"I \/',J """ '''' U) 1 50 t-----.:!-t------+.:..-----:i~'i:.:::::::;:;:::~A.~--+--_+----_1~---+_; <l.l c___ ~-V -- "". '"
9'~~ V~~~M g t&00~----2~--~4~--~&----~8----~10-----~,2-----,~4-----!~&----~!8
Aftttftfto Htight Abovt Grouftd ift Htl.r,
73
t o
RCVR. ELEV. 1995 M
1 2
R3-10-T4 PATH LENGTH 9.91 km
1 4
- 2000M
• t 500M
KILOMETERS
1 ,
XMTR. ELEV. 1686 M
1 8
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-22-66 at 15 M 6-27-66 at 15 M
50% 112. 5 120.0 111. 7 133.0 141. 6 154.2
f110% -90% <3 <3 <3 <3 <3 4. 7
6-27-66 at 7.3 M
50% 116.2 132.8 144.4 149.9
f110%-90% <3 <3 <3 <3
6-27-66 at 1 M
50% 117.8 136.4 148.0 152.0
f110%-90% <3 <3 3. 5 6.9
The foreground of the path is a field, sparsely covered with
weeds. At 400 m, there is a house with 15- to 20-m high trees behind
it.
74
R3-10-T5 73RD AND FIELD
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 640 36' 19" T.
75
••••••
R3-10-T5 -.-.-.... 73RD AND FIELD
•• I •••
230 MHZ ., 0 MHZ 751 MHZ 910 HHZ
1e., MHZ 4595 HHZ 9190 MHZ
9/15/"
'128/"
80.---~-----r----r----'-----r----~--~-----r----'
90~---+----~--~----~----+---~----~----~--~
76
1 o
RCVR. ELEV. 1995 M
Freq(MHz)
t 2
R3-10-T5 PATH LENGTH 9.59 km
- 2000"
- 1500"
1 t . , 1<1LO"ETERS
XMTR. ELEV. 1697 M
t 8
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-15-66 at 15 M 6-28-66 at 7.3 M
50% 102.7 105.9 105.3 111.5 117.8 124.7 132.2
LHO%-90% <3 <3 <3 <3 <3 <3 <3
-
The path extends over broken terrain. At 35 m, there is an
irrigation ditch with tall grass on either side of it. On the far side
of the ditch, there is an alfalfa field, and then a dirt bank, 3-m high.
At 0.4 km, there are 15-m high trees across the path.
77
R3-10-T6 RUSSELL SCHOOL S
PA TH VIEW FROM TRANSMITTER
Bearing froITl COITlITlon receiver site to transITlitter site is 940 141 37" T.
78
80
90
• -• 100 .a .-\I • a c: . -• 110 • 0 -J
c: 0 -• • - 120 " • c: G .. .... .. -• 130 G
CD
140
150 o
R3-10-T6
RUSSELL SCHOOL
/ ~ /' ...
! . . . . .. .. ' '. . .
'.' /"',
• '\ /'-:/ /
2
230 MHZ 9/15/&& •••••• 4tO HHZ
751 MHZ
/ ~ r '\. ~ --~ "-vi V
• . . . ...... ..... . . ••••• . ..... • • • •• . . .. . . . ' .. '0' .. /' r. ...... , ,,' /" 1\ "\ 1'. I\A
'" \./ V V / V \ v'
~ til til 0
o-l -(1) C)
i_~ U)
(1)
(1) 1_ !-l
fI.f ....
8 10 12 18
79
1 o
RCVR. ELEV. 1995 M
t 2
R3-10-T6 PATH LENGTH 9.82 km
- 2000H
- tSOOH
t t . , KILOHETERS
XMTR. ELEV. 1621 M
1 8
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz)
50%
L'l10% -90%
230 410 751
9-15-66 at 15 M
100.1 104.1 113.0
<3 <3 <3
910 1846 4595 9190
In the immediate foreground of the path is a dirt road. There is
a fence across the path at 30 m and at 100 m, and a ditch at 200 m.
Between the fences and the ditch, there is ground that is covered
with grass. At 0.2 km, a house on one side of the path with trees,
5 to 10 m high.
80
R3-20 - Tl MARSHALL ROAD
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 3510 01' 07" T.
81
140
150
• -• 160 .a .-u • 0
II: . -• 110 • 0
..J
c: 0 -• • '- 180 E • II: 0 .. ~
u -• 190 0 m
200
210 o
R3-20-T1
MARSHALL ROAD
, "\ ,
\ I
\ ). ... ~\
'I , \ '\ . I , ~.' I I \ I , . i I \ I i . 'I
• , .. .. ,", .,
I, , , ' : ... /" ,I~ I'· I', , , , \ ' ' • . '. . . ,I
" ." • • •
/, ,~ : I t'if~ 1 ..
JI r'! Ii, I ... , , ,
" , I I \ '\/1 , I I , ~ I~ i '" ! I I' I I I " _ , , I. . ! I, , I I .
2 4
('~'" " .... I' I ,
1 \-'
\! 'l
I ... . 1'.' '- ,'VI'~ I"' 1
~,:
(
~ri~ • II ~, \J\
: I , L 1/ \ " ... " I , I" , (~" ~I , ,,\ ~ , ,,' ~
\' It f
-,-,..... 910 MHZ '/301" "",. 184' "HZ
4595 MHZ
Free Space Loss (dB) 910 - 117.6
1846 - 123.7 4595 - 130.8
v' " 10-" , ,
'\ I '\ .. "" , 'L
I
i ,
r 'I I , / i
I
I
.. '" ."~', I I·,'" fa" ..... ., .... ,. " I
I , ~ I J
., I. \ ~;. ,.(1 l ~, . t", t '. I , ;, ,. i , I ~, I." \ " ,I
~ :~V I , . ','I I , ~. '.' I I I
I, . ( ~
8 10 12 ,. "
82
18
, o
RCVR. ELEV. 1995 M
, •
R3-20-TI PATH LENGTH 19.86 km
1 8
- 2000"
- 1500"
t( 1 LOME TER S
, 12
XMTR. ELEV. 1657 M
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
6-30-66 at 15 M
50% 161. 5 170.0 188.4
.610 % -90 % <3 <3 11. 0
6 - 30 - 66 at 7. 3 M
50% 155.3 172.5 190.2
610% -90% <3 <3 8.9
6-30 -66 at 1 M
50% 151. 7 169.6 191. 5
610%-90% <3 <3 7.6
The path extends along a dirt road for 0.4 km. There is a power line on one side of the road and a telephone line on the other side. There are low fence s on both sides of the road. A guy-cable crosses the road at 30 m. At 0.4 km, there are houses and trees on the path. A few tree s are scattered beyond this point.
83
R3-20-T2 CHERRYVALE ROAD
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 3570 01' 07" T.
84
'.0
150
It -• 160 .0 .-u • CI
II; .-It 170 It 0
...J
II;
0 .-It It .- 180 .. It II;
G .. .... u -It 190 0 m
200
210 o
R3-20-T2
CHERRYVALE ROAD
" r\ I ' . , "
/'. I , \ , r· ... . I '1 , . I . ,
~ , ~
l ;/\ 1\; (I .... V\~,., ~ , ~ ~,,\ I J ~
.: . I, f , 'I
• I.J~
IA
rW "~ 'J'tN'f 2
- .... - 910 "HZ &/30/" 4595 "HZ 9190 "HZ
Free Space Loss (dB) 910 - 117.6
4595 - 123.8 9190 - 130.9
, f'- I,'" ......... .,.'. 1--/ '" '. ,... /'. . ... y
1-'" ". .... ,
i
r" , ..... !, '\) , ' :V' '..v\ I '.'1 ;' 'I, ;\ , I,' , 't
"""' , J i " ~ , V • , , I 'v \";
\:
1,\ ~ ~ AiM ~ 1 AAAA ~ WV' VV'\) V\('JfV WYJ
8 10 '2 " Aft\.ftfto H.i,h\ Abov. Grouftd ift ".\.r,
85
18
1 o
RCVR. ELEV. 1995 M
R3-20-T2 PATH LENGTH 19.99 km
• 2000"
• 1 SOOM
1 t 8 , 2
KILOMETERS
XMTR. ELEV. 1660 M
, "
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
6-30-66 at 15 M
50% 157.0 188.2 201. 1
610%-90% <3 4. 1 3.0
6-30-66 at 7.3 M
50% 161. 5 189.5 203.4
610% -90% <3 4.5 3.0
6-30 -66 at 1 M
50% 167. 5 187.6 205.6
LIlO% -90% <3 4.6 3.0
The site is located on a dirt road. A power line, a telephone cable, and a low fence are in the immediate foreground. At 100 m, there is an irrigation ditch with 20-m high trees. The path horizon is approximately 0.8 km from the transmitter.
86
R3-20-T3 GREAT WESTERN RESERVOIR SWI
PATH VIEW FROM TRANSMITTER
Bearing £roITl COITlITlon receiver site to transITlitter site is 020 431 52" T.
87
90
100
• -• 11 0 .II .-u • 0
oc .-• 120 • 0 ..J
oc 0 . -• • .- 130 & .. oc G .. .... u .-.. '40 .. m
150
lGO o
230 "HZ 9/23/" •• • •• • 4' 0 11HZ
R3-20-T3 75' 11HZ
GREAT WESTERN RESERVOIR SW1 -,-,~ 910 11HZ G/30/G' .... ,. t84' HHZ
4595 "HZ 9190 "HZ
I
V I~ r--....... ..,- r--- --~ ~ -
/ .. '. .. ........ .. .... ..... . • # •
• ••• • ••• . ........ • . . ••• • • . . . .... ... . . --. r.,'''\~ .. ~ ~---- ~'
. v')..../;' ~.r-~' v .... v ...... v'v.(' .... -.--. 1'7 , ."":r. ~.~~ "" ... ............ ...."..... ~~
!; .. /- r;" ',' )
, 0'
J •••• ,Io , ~ ......... ...... • . • ' , •••• ," I •
I •• _ •••• , , , , , '." ~ "',' .. ........ , . •• I • • • -- -_. . - - . ---........ - --
U}
U}
0 ~ a.> C)
-~ -(f)
a.> a.> I-t ~ -.
2 8 '0 '2 ,.
" '8
88
1
°
RCVR. ELEV. 1995 M
1 4
R3-20-T3 PATH LENGTH 1.9.47 krn
- 2000M
- '500M
I I 8 12
KILOMETERS
XMTR. ELEV. 1732 M
, "
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-23-66 at 15 M 6-30-66 at 7.3 M
50% 105. 7 110.2 117.7 119 .. 1 125. 1 129.6 134.2
Ll10% -90% <3 <3 <3 <3 <3 <3 <3
The path extends over grassland. Power and telephone lines
cross the path at 100 m. At 120 rn and to the right of the path, there
are a house, a car, and a fence.
89
R3-20-T4
LOUISVILLE SW1
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
14 39' 33" T.
90
230 MHZ 9123/&& ...... ~ to MHZ R3-20-T4 75t MHZ
-,,-.-.. 910 MHZ &129/&& • 1 •••• 18~& MHZ LOUISVILLE SW1 ~595 MHZ
110
...- .......... ---V ~ V V "-V '~ 120
.. -• 130 .G .-U
•
I +' + --A. . + + • . + . . .. . . . • , + • ...... + • . ........ . ..... . .. . . • .. . . . . . .
+ • • . • 0 . . . c: + .- + .. 140 .. 0
...J
c: 0
1-, -'"" '" ,-, /\/\ /'-......-'"' .L\ /'\ "",,--"1-"'.
"f., "- '-/ IV , J - '" v
""''. .. ~X ",'" ~1"·· ,
J V~·,./·, ... \/"\ ........ ,. ...... -'/-. ........... ~'t"I1 ... , '" r / .-.. ..
'- 150 .. .. c: 0 .. ....
.-. It"' ......... ,I .... ~ .... ' ......... - ~'. II. II. ••••••••• .. I ' II ... I" • , ". .
u .-.. 160 0 CD
\ --'-- ,- ''': .. \.. -,I' .:,.~-1---._-- t" •••• -.- ..... \'-r.·.·.---r---'
170 Free Space Loss (dB) 230 - 105. 5 910 - 117.4 410 - 110.5 1846 - 123.6 751 - 115. 8 4595 - 130. 7
180 o 10 12 '6 18 2 8
91
RCVR. ELEV. 1995 M
, o
Freq(MHz)
, ,
R3-20-T4 PATH LENGTH 19.47 km
- 2000"
- 1500" , , 8 12
I<ILOHETEAS
XMTR. ELEV. 1643 M
1
"
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-23-66 at 15 M 6-29-66 at 15 M
50% 121. 2 131. 6 138.9 141. 6 152.8 165.4
610 % -90 '10 <3 <3 <3 <3 <3 <3
6-29-66 at 7.3 M
50 '10 143.9 152.9 165.2
610%-90% <3 <3 <3
6-29-66 at 1 M
50% 146. 1 152.8 165.0
610%-90% <3 <3 <3
The path extends over grasslands for the first 500 m, then over plowed fields for the next 2 km. In the foreground, there are trees to the left of the path and a IS-wire telephone line to the right. There is a telephone cable across the path. There are several scattered trees along the path.
92
..
R3-20-T5 LOUISVILLE S 1
PA TH VIEW FROM TRANSMITTER
Bearing frolTI COlTIlTIon receiver site to translTIitter site is o 1 7 41' 07" T.
93
230 MHZ 9123/" ......... Al0 MHZ
R3-20-TS 751 MHZ -.-It~ 910 MHZ &/29/GG
'II Ii IJ ••• 184& MHZ LOUISVILLE S2 ___ 4
4595 MHZ 9190 MHZ
100
! ! j
------~<---.-~--........ ., 1 I 0
M -• 120 .D . -u • 0
.:
/ ~ // ~ /' V ---... -I~'-
V •
/. " ... " ...... , # • .. .. * .. .-.. , . . t' • . . . · . . . .. . .... . . . . .. II I I •• ," +f' .... + ••• ..... .: , . , . .. .... • • . , It'
t .- , +
M t 30 M
. 0 -' .: 0
V--'y V\ /' I"'-~ /"'....-.. ---..,/"--1----/ t"-'"'v'\ / " .-
III M / --.- 140 ~ .. .:
" /' r-,r ... "o"
, ..... -. ... I r' " " ,J '\ ~r-...... " /'",-".- · ",," -. ' .. / ·Y"'I.i • _I 8" I
~ .... u .-.. 150 "
,.... •• (J) , ,
:", ", "' ......... 4 .. ••
~ .. ' ... -.. , . (J) , .
••• 11 •• " • • ••• III '.' ,1.1.
0 , y .' , .
..:1 I---• CD (!)
u
\ 1---- t----- .,.- -~ I. '"""-- - - 1------- - .. -- 1..---- U) 'I '
160 (!)~ (!) H
\.. - ~ "-
170 o 2 & 8 10 12 I. 1& 18
Anttnna H.i,ht Abovt Ground in H,'.rs
94
R3-20-T 5 RCVR. ELEV. 1995 M PATH LENGTH 20.25 km
XMTR. ELEV. 1637 M
, o
Freq(MHz}
50%
610% -90%
, ..
- 2000H
- , 500H , "
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-23-66 at 15 M 6-29-66 at 7.3 M
116.0 131. 6 138.9 141. 2 147.8 156.7 162.8
<3 <3 <3 <3 <3 <3 <3
1 20
The path extends over a wheat field for 1. 6 km. The rest of the
path consists of grassland. There is a telephone cable 3 m to the left
of the antenna. At 0 .. 8 km, there is a 2-m high pile of dirt, which is
covered with weeds. There are a few trees to the right and to the left
of the path.
95
R3-20-T6 STEARNS LAKE Nl
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
32 26 I 23" T.
96
100
110
III
.: 120 Col • o c
: 130 o -' c o III III
- 140 a III c
" ... .-
: 150 CD
16 0
170 o
R3-20-T6
STEARNS LAKE N1
V ~ / •
/ .... . . . . . . .' . • . • . .
I-'\. ./ . r, /', / 1. . V -,/
/1 \ ." ,JI ... y ..... . ~
/ \ ' ~'
\'
• .. . . I·' .:1 .. • •••• II • . . ., .. . •
, v', r.·,·.·.· ~ ----
\ '"
2
2'50 MHZ 9/2'5/" ...... 410 MHZ 751 MHZ -.-........ 910 MHZ &129/"
••• I •• 1846 MHZ 4595 "HZ 9190 MHZ
----.....
V ~ ........ .."...-~ ---.--
~ . ' f ••••• ... .. . .. . .. . . • . . . . . . ' . . . . • + •• •• • •
• ••• III
~ 1\ r".r I ........ ./\.-V\,' ,-,,/\ -, ~ " 1", .' ..... · ... 1' J " ---r{' • ' .. ,",,""\/"~ . . ..."....- .... , :.I \ I •
--
~.'" ..... I, II ..... ' r-' ." ........ . .. . .. .. ' ..
Ul Ul 0 ~
I--(!)
""-- -. f--- __ ._ --_ .. _- -. u ------.~ r.J)
ill (!) ~~ r--
r- ~ 100-
8 10 12 '6 18
97
R 3-20-T6 RCVR . ELEV. 199 5 M PATH LENGTH 20.04 km
XMTR. ELEV. 1615 M
t o t
4
- 2000M
D t SO Ofil
, , 8 t 2
I<ILonETER S
t
"
Lb (dB) SHOR T TERM SIGNAL VARIABI LITY
F r eq(MHz) 230 410 751 910 1846 459 5 9190
9-23-66 at 15 M 6 - 29 -66 a t 15 M
50 % 11 5.4 119.2 130 . 2 134. 4 14 2.8 152. 4 16 1. 3
610 %-90% <3 <3 <3 <3 <3 <3 <3
6-29 - 6 6 at 7.3 M
50% 132.9 142.8 152.4 16 1. 5
610%-90 % <3 <3 <3 <3
6-29 - 66 a t 1 M
50% 136.9 145.3 151. 6 162. 1 -<.
1Il 0 % - 90 % <3 <3 <3 < 3
The first 0 . 4 km of the path extends over a whe a t fie ld; the
res t of i t is grassland. There are scattered trees on e i ther s id e of
th e p a th at 1. 2 km.
98
, 20
R3-20-T8 OPEN AND CONCEALED 124 TH AND CARBON ROAD
PATH VIEW FROM OPEN SITE Bearing from common receiver site to transmitter site is
23 0 40' 18" T.
PA TH VIEW FROM CONCEALED SITE Bearing from common receiver si te to transmitter site is
23 0 25' 38" T.
99
100
110
.. -• 120 .a --1.1 • 0
c -.. 130 .. 0
...J
c 0 -.. .. - 140 &E .. c
" ~ I-
1.1 --.. 150 " CD
'60
no o
R3-20-T8 OPEN
124TH AND CARBON ROAD
/.' ~ V-I'--
/-. . . p. . . ,'. .. ... . . . . ~ . . . . . ... . . +. .' . . . -- ./\ L"-. "\ /\ '/--/ ...L 'v"
/' '''. . v
" 11. 1,"'\ .. '\ r-.~r\./'V ro, " ". '\ I i I ',-" .. y y ',1
',/
e. 'il 'I. I',. ......... I. ,. ....... II • ...... • 1, I_ ~ , " . .
/\./ .. ...,..- ----- ----- -------..
230 11HZ 9/23/66 • • •• • • ., 0 MHZ
751 11HZ -.-,~ 910 MHZ 6/29/6' ...... tU6 MHZ
4595 "HZ 9190 11HZ
--
..... ---.--
. .. . . .... . . ••• +.. • ' .. .. ' . • • ... ..... ~"'\/\ V'--/'/"- ..... "'-'.,- I ....... r- .• ~) " ... / ..... ~ / .... ,./
--
ra··· ...... II ~ ........ . . r: I1.l 0 ~
<J.)I--()
---'.- r--'--' r- .~ U)
<J.) <J.)
H ~ I---
2 8 10 12 16 18
Aft\.ftftG H.i,h\ Abov, G,ouftd ift "ttl"~
100
, o
RCVR. ELEV. 1995 M
, •
R3-20 -T8 OPEN PATH LENGTH 21. 42 km
, 1 8 12
KILOMETERS
t
"
XMTR. ELEV. 1642 M
1 20
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-23-66 at 15 M 6-29-66 at 7.3 M
50% 113.9 121. 0 128.9 134. 1 140.8 153.8 162.6
610% -90% <3 <3 <3 <3 <3 <3 <3
Power lines cross the path in the immediate foreground. The
path also crosses a small pond, a fence, and scattered trees, 4 to 15 m
high. To the left of the path, at 70 m, is a section of corrugated tin
standing on edge.
101
R3-20-T8 0&(
124TH AND (ARBON ROAD
11 0
v ~ V '--
/ • + • 0
o· • • . 0 . .. ' . • . • + 0 ...... • • • .. • • • • .' 0 .. 0 • o •• . . o •• . 0 •• . 0
120
• . " • • • • 130 -• • 230 HHZ 9123/" -
.JIll .- -- OPEN U • ...... CONCEALED
0
c - 140 I I • • 0
..J
C 0 .-• • -- II 0 Ii • C D .. ~
U -• 120 G CD
-V ........... V" V'" v~ ~ ~ ~ / 130
••••• 0- • • ... ~ . • .' 0 . . . • 0 0 •• • 0 ... .. . • •••••• . 0 0 0 0 0 • . • • • • • • • • • o 0 .
0 • . . "'0 MHZ 9123/&& - OPEN ....... CONCEALED
I I 140 o 2 8 10 12 1& 18
Anttnna Htigh' Abovt Ground in Ht'tr,
102
1 o
RCVR. ELEV. 1995 M
1 •
R3-20 -T8 CONCEALED PATH LENGTH 21. 25 km
- 20001'1
- 15001'1
1 1 B 12
KILOHETERS
Lb (dB) SHORT TERM VARIABILITY
Freq(MHz) 230 410 751 910 1846
9-23-66 at 15 M
123. 5 129.6
<3 <3
1
"
XMTR. ELEV. 1642 M
4595
1 20
9190
A 2-wire power line crosse s the path, 5 m from the antenna.
The trees on the path are 5 to 15 m high and they extend along the path
for 100 m.
103
R3-20-T9 120 TH AND LOWELL BOULEVARD N
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 45 0 21' 40" T.
104
80
90
" -• 100 .0 -II
• 0
0: --" 110 " 0
...J
0: 0 -" " - 120 5 " 0: IS ... ~
II -" 130 IS m
'.0
150 o
R3-20-T9
120TH AND LOWELL BLVD_ N
r--~ ~ 1"-----~
. . •••• .... .. . ........ f . . ••• ·4 . . • •
~~ /i' ~'.£? f:>v""""", ~~I\'l~ r' \/
,.. .'. . •••• J .1 .. .' I.. I'" .... , " .... ........ II • • • • • . , \ , ---.... -'. .......
~ .---. .---.
r---. ---.
230 MHZ 9/23/66 •••••• 410 MHZ
751 MHZ -.-.-. 910 MHZ 6/281" II II.. 1846 MHZ
.595 "HZ 9190 "HZ
-U)
U)
0 H I]) u~
g U)
I]) I])
l-< J::,:,I--
L0-
~ ~ i'-- --.eo
••••••• . . . .. .,. • . .... • • •• • •
Y~<17 ~~~~ v.. . ./\./ --,. "
-.--
••• iii. II· a ....... •• . ....
---._-------...- --~ "'- ---
2 6 8 10 12 ,. 16 18
105
t o
R3-20-T9 RCVR. ELEV. 1995 M PATH LENGTH 19.89 km
XMTR. ELEV. 1599 M
Freq(MHz)
50%
LHO% -90%
, .c
, 8
- 2050"
KILOMETERS
1 12
1 '6
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-23-66 at 15 M 6-28-66 at 7.3 M
106.4 108.6 114.8 116.7 122. 7 134.8 137. 1
<3 <3 <3 <3 <3 <3 <3
The path extends over a v;.heatfield for 35 Ill, then plowed ground
for 10 m, then over wheatfield, grassland, and more fields. At
40 m, there is a fence corner to the left of the path. At 0.8 km, a
power line and a road cross the path. There are a few scattered
trees about 2.3 km along the path.
106
R3 - 20 - T10 100 TH AND PECOS
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to tran.smitter site is a
58 51 1 23" T.
107
80
90
• -• 100 .a v • 0
c .-• 110 • 0
...J
C 0
• • - 120 & • c D ~ .... v -• 130 D
CD
"0
150 o
R3-20-Tl0
100TH AND PECOS
-.-..... 910 HHZ '/28/" ...... 18.' HHZ
.595 HHZ 9190 "HZ
[fJ
[fJ
0 ...:J Q) u
-~ -U)
Q) Q) H ~
• .. - \ /\ '\ f, ... .\, .. .." ... "",'" "~ .. ,.'" \""v· .. ·.r· ~ ... , ... -~ .. . , -.--/' "',,- '- , \1 .. ',{
,. .". ". ~ ~ .... I' ••••• " • ,I, 1 1 • 1 , ' .......... ............ '-. ' ........... ~ ... ..... . . . 0 I.' 'a' 0 .. .
~. ---~ - ---~
# ... --------- -----""'"" .. .,... -~ -.
--
2 8 10 12 "
18
Ant.nna H.i,hl Abov. "ound in ".1.',
108
1 o
RCVR. ELEV. 1995 M
1 .c
R3 -20 -T 10 PATH LENGTH 19.51 km
1 8
- 2000"
- 1500H
t( I LOHETERS
1 12
XMTR. ELEV. 1677 M
1 'G
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz)
50%
LUO% -90%
230 410 751 910 1846 4595 9190
6-28-66 at 7.3 M
116.7 123.6 132.8 133.5
<3 <3 <3 <3
The site is located in an undeveloped housing area which has a
weed covering. Th.ere is a plowed field for 1.6 km beyond the housing
area, and then houses. A power line crosses the path at 0.8 km.
109
R3-20-Tll THORNTON S1
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 72 0 50' 47" T.
110
90
too
It -• 11 0 A -u • 0
c -It 120 It 0
...J
c 0 -It It - 130 IE It C 0 ~
t-
U -It 140 0 m
150
"0 o
R3-20- T 11
THORNTON S1
/ ~
0 v, v "\,/ .. \ /"- , I ... .,
I'~ ... ... ""~ ............. 0 . • .... . . . .
. , , "' ... ,', ... .,...,...... f------v
r
~
~"'--.... , ..... -. -.-'I' •• II II •
-----
"--~ ......
',,/' .... " ... . ........
--- ---
230 MHZ 9/1S/" 7S1 MHZ
-.-...... 910 MHZ 7/29/" . • . • •• 184& MHZ
4595 "HZ 9190 "HZ
~ ~ ----
../\/J ~V<~'>J) 1\ (\ --~I" ••• /'\ •• ~)./- v -1--
.. . . . . .. II' .", ... ....... . ....
----- ----- __ 0 ---
--.........
Ul Ul 0
...:11 (]) u I~ t--U)
(]) (]) 1.;
~ L-
2 & 8 10 12 "
18
III
R3-20-T11 RCVR. ELEV. 1995 M PATH LENGTH 21. 08 km
XMTR. ELEV. 1594 M
t o t •
- 2050"
t 1 8 12
J( lLO"ETERS
, "
t 20
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-15-66 at 15 M 7-29-66 at 7.3 M
50% 107. 2 117.3 119.0 123.0 131. 0 138.3
fil0 % -90 % <3 <3 <3 <3 <3 <3
The first 0.4 km of the path is covered with weeds. The next
0.4 km has houses, power lines, and trees. There are trees to the
right and to the left of the path.
112
R3-20 - TI2 WESTERN HILLS SEI
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is a
80 47' 00'1 T.
113
230 MHZ 9/t5/66 • f ..... 4tO MHZ
R3-20-T12 751 MHZ -.-.-... 910 MHZ 7129/66 ....... 18"& MHZ WESTERN HILLS SE1 "595 MHZ 9190 MHZ
90
tOO
.. -• 1 1 0 .0 --" • a c: --.. 120 ..
v ~V V ~ .. / --I ••••• • • • . . . . .' • . • ..
-7 .. . . • . . . . . . . ' .. • . . .... . . , ' ... ' .. ' .. . . . . . ' .. :\ '.
\ 1\ 1\ II .</ '-, "~/' .1"",1\. v.:\- fJV' ~·\/v --
f. ·v I V ' -111--1.,/' .... , /' \ ... -.. ~/\/'../ ,f\...r.1'\ 1.- .... 1 .... .1' "".,;1' v', ~ .. . , ,
I "I' 0 ..J I
• ~ • III •
c: 0 --
• • 9 ~ . .. ' ...... , IIIJ· III • III. . ....... " . ..... ...... ........ 11 •• . .......... •••••• , . .. .. . .. -- 130 IE .. C G \/ ---- -- ---,,' ..... ....- .. ------ -.-- 1--,..... ... ....- ~---
.. t-
" - --v-.. 140 G fJl CD fJl
0 ...::J (I)
IU 'ro -,~ 150
(I) (I) H ~
'60 o 2 8 10 12 " 18
114
1 o
RCVR. ELEV. 1995 M
, •
R3 -20-T 12 PATH LENGTH 19. 89 km
, 8
- 20eOH
KILOMETERS
, , 2
XMTR. ELEV. 1573 M
, t£
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-15-66 at 15 M 7-29-66 at 7.3 M
50% 103.8 106.8 ll5.9 ll8.9 125 .. 1 131. 8 137. 5
610%-90% <3 <3 <3 <3 <3 <3 <3
An irrigation ditch and a fence cross the path in the foreground.
The next 30 III are covered with low, garden plants. The path then
extends between two houses, over a power line, and over 8-Ill high
trees. The power line crosses at 80 m.
115
R3-20-T13 RIVERSIDE CEME TER Y
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
87 42' 19" T.
116
100
1 10
.. -• 120 .A 0-
V • 0
c 0-.. 130 .. 0
...J
c 0 .. .. - 140 & .. c 0 .. t-
V -.. 150 0 CD
1&0
170 o
R3-20-T13
RIVERSIDE CEMETERY
/ ~ .-"'"
V \./
! .' ...... .' -. ,. • . ." . • " ..... + ....
.' . t,.. ....... , :/ ',,- v-,,--/" --'--
.... 1/' " .,,... .. - ""-'-',..-. . .............. "'. •• • • • • . "' ..... • II I I, •• I. . .. .
--, ----- --'"--'/
.",,0.--
v.... ~
r--..... --' .. '. .' 0"
,,~/'
"....." ....... ~ I '. ,I ••••
"'---'
230 MHZ 9/15/&& • .... - .el0 MHZ
751 MHZ -.-..... 910 MHZ 7/29/&& II II •• 1U& MHZ
4595 MHZ 9190 MHZ
----........ /'. /
~ ...... ... .......... .. " ~ ......... It "... .. •• --• • • -.--,,/'-- "'...-- ... ~'\..-/ . .... ,I .,~ .......... Jo--IJ-..-.- ...........
• II • II ••• . . . .. . . . •• III •
------- ----- _.-'
--
I'""" 00 00 0
....:1 d) f--U
~ ~
d) d) l-I ~ ~
~
2 8 10 12 " 18
Aftt.ftfto H.i,ht Abov. G,ouftd ift H.t.,.
117
I o
RCVR. ELEV. 1995 M
, •
R3-20-TI3 PATH LENGTH 20. 34 km
- 2000"
• 1400" , t 8 12
KIL.O"ETERS
XMTR. ELEV. 1558 M
t , ,
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-15-66 at 15 M 7-29-66 at 7.3 M
50% 107. 5 112.2 120.9 126.3 128.4 134.9 140.3
1I10%-90% <3 <3 <3 <3 <3 <3 <3
The site is located near a packing plant. The path has the
following obstructions: at 10 m, a metal gate; at 25 m, a large pile
of wire; railroad tracks and a power line at 30 m; at 45 m, a small
building with trees on either side; 100-m high trees; a building at
150 m; and, an antenna (aircraft array) at 175 m.
118
1 20
R3 - 20-T14 MARSTON LAKE NW
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 148 0 31 1 24" T.
119
R3-2.0 - T 14
MARSTON LAKE NW
......
...... 230 "'HZ 9/121&& 410 MHZ 751 "'HZ
184& MHZ 81 5/&& 4595 MHZ 9190 "'HZ
90----~---r----r---1I--~----r_--_r--_r--__,
100~---t----+---~----~----t----t----1-----j---~
.,v~ -;~.... ~i'-~~ .. ~+·ILk~---+--';\T-+--.~:+~I~~ \~+'~-t~~~'~-~-+~~~+1r--~-t.,.,~,,~.~
: 110 4'\ /\,:1 1\ "I~./"" ~++.++., • / (:1 \ I I~ : ~ ,,--~ \ J ~ 1/ I +,\ .o/t \ /
\ II + ~ J- -.L +\.: v : 120~--,--~.~~\.~,~-._--~~!~Ir.~",~;i~~"~'~.1~_~~~~ir~~~~:.~,~:~~r;~----t---~ o " ' ~ - " I ," I, " ',\', " '~\7','.: '.' ••• o' •• , ••
...J 'I : ";\ f ,I " .' '~ll~." :: ~; \ ~.' .... ,~.. ',: '( l-e •• I" :' " •••• J. o ::.. ,I ~ .. I , " I'" . . "'. " y. E 130~--~I"~:~-'~':--+---~f.:~·--·~·:-4~~~--1-----1------r-----t~:=1 Ii _" , .. ' " • .. ~ .... \ " ... t. I: 'is.- .... "'t 'V\ g ! V \/\ 1\ ',III,' 1 '>/'1~\'" /I ,. ... ~J • V .... . , . .i'" ::. .' I., ", "I " ~ ; • \/'.' .. V • • "',--.,
CI ___ ~r--
: 140 l--~-+-~---+'VVfrlcV''''"''-~t-''''''~''''''+~~~r-v~=-P~--t----rTooTI
150~---+----~--~~--~----t----i----1r----r1
120
1 o
RCVR. ELEV. 1995 M
1 •
R3-20-T 14 PATH LENGTH 19.44 km
- 2000"
• 1500"
XMTR. ELEV. 1716 M
1
"
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-12-66 at 15 M 8-5-66 at 15 M
50% 106.6 110.2 115. 1 121.3 133.9 141.9
.610% -90% <3 <3 <3 <3 <3 <3
8-5-66 at 7.3 M
50% 125.3 134.7 140.9
.610% -90% <3 <3 <3
8-5-66 at 1 M
50% 121. 3 132.4 142. 1
.610%-90% <3 <3 <3
The first 400 m of the path extend over plowed fields. Then, there is a water tower to the right of the path, and buildings and trees for the next 5 to 6 km.
121
R3-30-Tl LEGGETT RESERVOIR NE2
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 03 0 35' 26" T.
122
100
110
.. -• 120 .D .-u • a II: . -" 130 " 0 ..J
II: 0 .-" " - 140 E
" II: ., L
t-
U -" ISO G m
160
170 o
....... R3-30-Tl -.-.-.
230 MHZ "'0 MHZ 751 MHZ 910 MHZ
LEGGETT RESERVOIR NE2 ...... 18"6 MHZ
.. 595 MHZ 9190 "HZ
V ~ ~ ~ -~ ~
,) ... ... / . ...... It ..... A ....... .. ..... 7 • fT - ..... • • • ." '0 ,. •. +. • .
'" • •• .... • ~ . • t r-vv .' ;: '"" A r ~,/ ~/,-r-. V"-'"Y ~ ...... /"'-... \ ~","' ...... 1
.-.-,..~~ .... ,. .. ,... ......... .. , .............
"', 'it9: ,.,., '" ............ f .' J
~ ...... II •••
1*' II '" •••• I. I. al • I' II' ~ ," ." ... " ...... * . . .~ ..... " . •
- . -~--.. .,,- ----- ---------, ..----- -,,' -
'\fv' v---I--
2 , 8 10 12
Aft\'ftftG H.igh\ Abov. Grouftd ift ".\.r,
123
9/26/&&
7/22/&&
--..... --. -
, ....
---
-r.Il r.Il 0 I--....
I~ ~ rn <1.l1--<1.l
I~ io-
16 18
R3-30-T1 RCVR. ELEV. 1995 M PATH LENGTH 29.64 krn
XMTR. ELEV. 1580 M
, o
Freq(MHz)
50%
1110% -90%
t ,
- 2000"
- UOO"
t 1
12 " KILOMETERS
1 24
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-26-66 at 15 M 7-22-66 at 7.3 M
122.4 130.5 135.2 141. 0 145.7 153.9 159.0
<3 <3 <3 <3 <3 <3 <3
The first 0.4 krn of the path extends downhill to a row of 20-rn
high trees. The trees are below the radio horizon. A power line
runs parallel to the path for 0.4 krn and then angle s to the right of the
path.
124
R3-30 - T2 EAS T LAKE RESE R VOIR N 3
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 530 10' 17" T.
125
100
1 10
.. • 120 .a u • 0
~
.. 130 .. 0
..J
~
0 .. .. & 140 .. ~ G L
I-
U .. ISO G m
IGO
170 o
R3-30-T2
910 MHZ 8' "&& , ..... 18 .. ' MHZ
4595 MHZ 9190 MHZ
EAST LAKE RESERVOIR N3
....-
I
~-~--
11 • Ii II • .' ..... 1/'-........... ll ... "'y .... .,· 1--'.' .... , &P·'Il,. • .... ~\" Iii"' ........ ..II~iI •• ~I .... •• "'\-"" .- '\ i' .~ i'
---,. .. • • ,. ....... .. ",". Ifl IIIJ.I. _. I ~. 1.1 , .... ' .... , .. - II II a • . . • II I II • 1.111 •••••• • . • . • • ~ . .
"'" 1- ____ . __ ,,-- en ~- ... - .. - ... ..-..,. ... -- ~ .. --~ -~-"'- en
" ..... -- 0 v', "' . .., (I) C)
'vv -- ~ 'V ..... I--. ---t----- (1),,-
(I)
H ~ ...
2 a 10 12 18
126
t o
RCVR. ELEV. 1995 M
, ,
R3-30-T2 PATH LENGTH 25.81 km
G 2050"
, 12
KILOHETERS
, 18
XMTR. ELEV. 1600 M
, 2.
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
8-1-66 at 15 M
50% 127.4 135. 5 146.4 155.8
610%-90% <3 <3 <3 <3
8-1-66at7.3M
50% 126.7 136.0 147.5 155.7
610%-90% <3 <3 <3 <3
8-1-66 at 1 M
50% 131. 0 137.0 147.5 154.8
610%-90% <3 <3 <3 <3
At 70 m, two fences, a power line, and a road cross the path. The next 110 m is pasture land. A road, a power line, and two fences then cross the path. After another 100 m, there are several small, wooden buildings. A row of 10-m high trees crosses the path at the horizon.
127
R3-30-T3 OPEN AND CONCEALED WEBSTER LAKE
PA TH VIEW FROM OPEN SITE Bearing from common receiver site to transmitter site is
530 12' 48" T.
PATH VIEW FROM CONCEALED SITE
Bearing from common receiver site to transmitter site is a 53 141 40" T.
128
230 MHZ 101 61&& ...... "0 MHZ R3-30-T3 OPEN 751 "HZ
-.-.~ 910 "HZ 81 1/&&
WEBSTER LAKE ...... 18.' MHZ
.595 "HZ 9190 MHZ
90
100
--II -• 11 0 .Il .- <& ~ ....
u • 0
c .- V ~ 0 l.---./' v-~ ..........--... -.-II 120 II 0
..J
tt·· .. • " • -1--7.: , , , ,.- i, • -., , •• •• • •••• • •• • . " ,
+ . • • .. .. . '. ' . -.
, C 0 -II II - 130 ~ II C G ..
"I'~J ~~ ... ~'; ~\fA ~Q~ v .. ·., ......... ~rv
..... '1/
I,' v ........ ~~v. 1-/---'" .; , .. ' . " ,
.1 • '" to'. " I II •••••• I .... II •• ' •• II .1 .... I' •• 1 ...... ••••• . • • .' I' . 'I ~ 'I' ---. ..... u .-II UO G
CD
-'" >-- --\ ,,..--- --- -'- --- --- - -- -- -.-
Ul
\rv-Ul 0 - ...:t ill U
I.~ I--U)
150
ill ill 1--<
~
160 o 2 8 10 12 " "
18
Aft\'ftfto H'i,h\ Aboy, G'OUftO ift ",t"s
129
t o
RCVR. ELEV. 1995 M
1 ,
R3-30-T3 OPEN PATH LENGTH 22.76 km
G 2050H
• USOf"
1 t 2
KILOHETERS
XMTR. ELEV. 1635 M
, , 8
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
10-6-66 at 15 M 8-1-66 at 7.3 M
50% 114.5 120.5 130.0 125. 1 133. 7 141. 3 144.2
61010 -90% <3 <3 <3 <3 <3 <3 <3
The path crosses a road, a 4-wire fence, and a 2-wire power
line at the end of a row of trees. At 350 m, it crosses another fence,
a 3-wire power line, and a 4-1ane highway. There are power lines and
a phone line on the far side of the highway. A wheat field and low
grassland with sparsely scattered trees extend for the next 0.4 km.
130
R3-30-T3 O&C
WEBSTER LAKE
120r-----r-----r-----~--~~--,~----~----~----~----~
130r---~.~~~.--~.-+----~~----+----+~~ .. ~.---~------~----4-----~ '.'. #.- •• + • . , ~ • . .. .• .•• +... ..., •• . -t- I ............... '._ • ,.t t+ #. _. • : . tt-.. . · ,+
• t40~----~----_+----~------+_----~----_+
• 970 MHZ 81 1/" -
.0 -- OPEN ~ •••••• CONCEALED
~ 150~--~--~----~---L.--~----~---~1--~1--~ • • o
...J
c o
• ~ 110 a • c G ...
to-
u
• 120 a
m
730
140
150 o
r VV\r .,
o 0 .t . . 0
• . . , 0 ..
2
I I 184& "'HZ 81 t/" -'- OPEN •••••• CONCEALED
~
VV'\A..-
" l. • • 0 •• • • .. . ... -.' 1""'-
8 70 72 18
131
II
• .a
130
'40
150
:: 160 o
II II 130 0
..J
&: 0 -II II -a '40 II &: a .. ~
u -II a 150 CD
160
170
180 o
R3-30-T3 O&C
WEBSTER LAKE
"595 MHZ 81 1/" -- OPEN •••••• CONCEALED
'\.1\
, .. j..\ • ' .- • • ' ..... to • !,t. .... • to f-t •• ~ .... , ... ' •• .1 .. -.- ,
\,: o. 0 + •• . ... " ..... .J . ~. , -. . '". •• ' . ,. ..
9190 MHZ 81 1/'6 -- OPEN ...... CONCEALED
t. o· ~ •••• • • ~ .. ~ ;"'\ . .. . . ',: ...... . '. t-+ \ ~o • •• • •••• • .' • •
PI • • • • • to " ... : •• + •• • •• • "
2 6 8 10 12 1& 18
ARt.RRG H.i,ht Abov. GrouRd iR Ht\.'1
132
1 o
RCVR. ELEV. 1995 M
1 6
R3-30-T3 CONCEALED PATH LENGTH 22.82 km
- 2050'"
XMTR. ELEV. 1636 M
1 18
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz)
50%
LHO% -90%
50%
610%-90%
50%
610% -90%
230 410 751 910
142.7
<3
146.5
5.0
146.3
4.4
1846 4595 9190
8-1-66 at 15 M
139.4 154.4 170.9
<3 <3 6.3
8-1-66 at 7.3 M
139.9 154.8 168.5
<3 3.9 7.8
8-1-66 at 1 M
141. 1 156.0 167.4
<3 7.5 6. 1
The site is located in a ditch. A 4-wire fence and a 2-wire
power line are 3 m behind the van. In front of the van is a hedge,
4-m high, followed by another hedge, 12-m high.
133
R3 - 40 - Tl OPEN AND CONCEALED LONGMONT Sl
PA TH VIEW FROM OPEN SITE
Bearing trOIn COInInon receiver site to transInitter site is 130 20' 59" T.
PA TH VIEW FROM CONCEALED SITE
Bearing froIn COInInon receiver site to transInitter site is o
13 25' 54" T.
134
230 MHZ 912"&6 ...... 4' 0 "HZ R3-40-T1 OPEN 751 MHZ -.-.... 910 "HZ 71t"/&6
LONGMONT S1 ...... 184' MHZ
4595 "HZ 9190 "HZ
100
1 1 0 --
.. • 120 .A .-u • 0
/ ""-I ~ VV-, ~ ~ - ..... ----/ ••• • t .. . . . .. . . '~. , ..
• .. ' 4 • •••••••• ......... . ...... --, , " , # + •••• . , -.--, ' ..
# c: , .-.. 130 .. 0 -J
c: 0 .. ..
, 1. --, rv' /"'~ .../"'-"V" .
/". ..... ".--- ......... ...... _/' --...... . f' " ~ . ...,1""", .• " ..... --.. •• ',,/ I •• ...... V, ... .. " . ..- ..... ... ....... .... , . . ........ . ••• II .1 • .1 ••••• If . I' \ •• ' III
.... ' .. . ...... . ... . . ---• .- 140 ., ..
c: G --... t-
u .. 150 G CD
_.- --_.-.--. -'.--- /' -.- _._- -. ", -' -\ .;-. r--. -.- U) .- U)
- - 0-
"'--- ~ ~ l--t-I
V ------......... (!) u
.~ U)
"0 (!)f--(!) H ~ -
170 o 2 .. 8 , 0 12 'G 18
135
1 o
RCVR. ELEV. 1995 M
1 8
R3-40-TI0PEN PATH LENGTH 39.59 km
- 1950"
- "50" 1 1
" 2. KILO"[T[RS
XMTR. ELEV. 1509 M
1 '2
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-26-66 at 15 M 7-18-66at15M
50% 116.5 121. 9 127.7 130.4 136.4 144.6 151. 4
610% -90% <3 <3 <3 <3 <3 <3 <3
7-18-66 at 7.3 M
50% 130.9 136.4 146.0 152. 1
61010-90% <3 <3 <3 <3
7-18-66 at 1 M
50% 130.9 136.4 146.1 155. 9
610%-90% <3 <3 <3 <3
The site is on the north bank of the St. Vrain River. The path eros se s a stream at 30 m, and fence s at 100 m, 250 m, and 500 m. At 500 m the terrain changes from pasture land to cornfield. The cornfield extends for 0.8 km. There are a few scattered trees at 1 km and at 3 km.
136
no
120
130
140 • - 120 • .a .-" • 0
c -• 130 • 0 -J
c 0 -• • t40 , • c G .. ... " - 150 • 0
CD 120 ,.
t30
140
150 o
R3-40-T1 O&C
LONGMONT 51
/ ~./ r-v--/ ••• • .... -. . . '. '. •• .
• • • , •
/ ~ V - . • • • • • • . . ..... ..
• . • · .
.-
.../V'
• • • ..' . .
~
.. .. ..... ' ...
~ ...,,-. ............ ~ ...
. " • . • . .. , ..... tit ..... . ••••••• •• ,
.' ... 230 MHZ 9126/" - OPEN
........... CONCEALED I 1
/"v ~ .... _- ,....
• • # ...... " .. .. ." ..... . ...... • • .' \' . . . •
.- 4tO HHl 9/26/" --- OPEN ........... CONCEALED
I I
~ ~ l/"v' ~ .- .-
'"'" -j - ~
/ '--'
, .. ••• t .. .... ~ ... '. t- • ........ + ... .-. • • .. • • . . , • • • '\'
. • • • . . 10' . • • • 75t MHZ • 9/26/" • • - OPEN ........... CONCEALED
2 6 8 10 12 '6 '8
Aft\.ftfto H.lth\ Abov. G'ouftd ift """,
137
R3-40-T1 O&C
LONGMONT S1 120
130 I ~ V""'/ ...... v v...., v "'"
...., -
.. ~ .. . . ---- .. • •• • • • ..+. .+ ~ .+ ••• it .......... I". w. · .. . • • • • .t.. . • '. • Itt. ' •• 910 MHZ 7"8/66 • • • • • • OPEN • • --•• ... • ••••• CONCEALED
140
It 150 _J --
• ..G
v • 0
c -• 120 • 0
...J 184& t1HZ 7/18/66 C - OPEN 0 •••••• CONCEALED • • 130 a • c ., ~ .... v
/' ~ v'V"
• 140 ., CD
150 ..... , ... Itt •• • •••• • ..... 1- ...... • . .... \ . ....... •••• -,. t. • • ~ ...... . •• • .. • 'oO • .,+ . , • ••• 1&0 o 2 , 8 , 0 12 '6 18
Aftl.ftftO H.i,hl Abov. Grouftd ift H.l.r,
138
R3-40-T1 O&C
LONGMONT S1
140
- l--"""
V- !----
150
lGO
• -• ~ - 170 II • 0
c -
, ....... ". ~-.. , . ""'. .. . '\ ..... • d..~ ~
'. ,.' -'" .... l-•• ' •• . -... .,. •••• " 4595 HHZ 7/18/&& .... • • . • ',: -- OPEN • • ...... CONCEALED 0
180 ...J 1 .1 c 0
• • Ii 150 • c a L. ~
v- V-~ "" V -~
II .-• lGO a CD
170
,. 1".
'. # ~. "'-'" .. ' t ... ~. • • ~~ '. t,.·· .. • • t
• .. • • • . -.. ~
• ... " .... ••• ~:.." " • ,'..0; · " '" ',' . •• • • •• •• •• 9190 HHZ 7/18/" f# • •• • : : '" -- OPEN •• •
180
•• .. • ••••• CONCEALED
2 8 10 12 ,. 18
Ant.nna H.i,h\ Abov. Ground in M".r,
139
1 o
RCVR. ELEV. 1995 M
, 8
R3-40-Tl CONCEALED PA TH LENGTH 39. 56 km
8 t9S0"
- 1550" , t " 2~
KILOMETERS
XMTR. ELEV. 1509 M
1 '2
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-26-66 at 15 M 7-18-66 at 15 M
50% 126.5 129.6 137.5 141. 9 156. 5 166.4 178.3
~10% -90% <3 <3 <3 <3 4 .. 9 3. 1 7.6
7-18-66 at 7.3 M
50% 142.4 155.0 167.3 181. 0
~10% -90% <3 3.5 3.3 9.0
7-18-66 at 1 M
50% 146.7 155. 5 168.9 179.7
~10% -90% 3. 1 4.0 4. 1 8.4
The beginning of the path is concealed by 20-m high trees. The
remainder of the path is essentially identical to R3-40-T1 OPEN.
140
R3-40 - T2 LONGMONT SE 3
FA TH VIEW FROM TRANSMITTER
Bearing fro:m. co:m.:m.on receiver site to trans:m.itter site is 160 53' 08" T.
141
230 MHZ 101 51&6 ••• • 0 • 4' 0 "HZ
R3-40-T2 151 MHZ
LONGMONT SE3
1 t 0
1--E .. - --120
.. - -• 130 .a .-(1)1--(I)
u • 0
c: .-.. 140 .. 0
...J
/.:' ~ 0
~ '-../ r----~ f'-/ ~ I]) u
~ + + i. •• • .. '. • ........ + • '. .* • ~ ... ... -~ . • • o. 0 . .0' .... '0
/'.' 0 .. -.... •• r/)
• I])
c: 0 .-.. .. .- ISO &
+
"'- I]) +
""\ '" H /1 'V ,I 1'-/, ............... ~,/- r"'--....-. 1--"--"", ~,,/,\/\ ~
I -I ..
c: 0 .. .... u .-• 160 0 m
170
180 o 2 .. 8 10 12 14 16 18
142
1 o
RCVR. ELEV. 1995 M
, 8
R3-40-T2 PATH LENGTH 42. 33 km
- 1950H
, "
XMTR. ELEV. 1501 M
, '2
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz)
50%
610%-90%
230 410 751
10-5-66 at 15 M
132.9 138.2 147.4
<3 <3 <3
910 1846 4595 9190
The path extends over sugar-beet fields to the horizon. There
are 20-m high trees, 70 m to the south, and a high ridge, 0.8 km to
the south.
143
R3-40-T3 OPEN AND CONCEALED LOWRY BOMBING RANGE W
PATH VIEW FROM OPEN SITE
Bearing from common receiver site to transmitter site is 119 0 11' 34" T.
PATH VIEW FROM CONCEALED SITE
Bearing from common receiver site to transmitter site is 1190 16' 32" T.
144
100
no
.. -• 120 .0 -V • 0
c .-.. 130 .. 0 ...J
c 0 .-.. .. - 140 E .. c G ... .... v .-.. 150 G m
160
110 o
.......... R3-40-T3 OPEN
230 MHZ 4' 0 MHZ 7St MHZ 910 MHZ
LOWRY BOMBING RANGE W ...... 1~4' MHZ
4SS5 MHZ 9190 MHZ
v ~ ~/ 1--"-
i'v V ~ I . ..... + + •
! + + , y , t, .......... • + . • • • • . . . . ... . . + • , . + •• ." . . +
+ + , , . ~ .... + , , .. .. .+. • • " c. -.
II' /~ /\_1 "'\ Ir--- i'-.~, f \ j \ ... l ~",/ \/ 1", !..,-'::' ~ r"'v ,", 11", I '\ ~. v i' ,. 1"1, ''. / ~~ V t-, , ,
\ J ".1 • I .~ '..' \ 'I .... \' \ '" '" '.; 'l. r .. . , '. 'If ~I
• Y , ,. I • ' .. . '" .. '. .... '.' , ..
'.' ...... II· . , . ....... 'o' .. "' .... , • .... .' \.' .. . .... ...- ...
I I • • • I \, I I . , " '"
't· '. , or """"- _ \ 1- •. --- .... ------ . -......, .... -.......... , .. - -.#-. -. .. ...... __ 0.
\ ~ r-J' ~ f-..--~--... r--"-1-" .....
2 8 to 12
145
9/13/&&
81 31G6
--..... ---.--
'-.....
---
--'""" 00 001--0 ~ (1) u
!~ U) ~
(1) (1)
!-t ~ ....
'6 18
1 o
RCVR. ELEV. 1995 M
, 8
R3-40-T3 OPEN PATH LENGTH 44.71 km
, tS
- 2000"
• UOO"
t 2 ..
I<ILO"ETERS
t '52
XMTR. ELEV. 1774 M
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz)
50%
610% -90%
50%
610% -90%
50%
610%-90%
230 410
9-13-66 at 15 M
117.5 120.2
<3 <3
751 910
124.2 132.5
<3 <3
130.4
<3
130.8
<3
1846 4595 9190
8-3-66 at 15 M
139.8 154.6 162. 5
<3 <3 <3
8-3-66 at 7.3 M
141. 5 154.1 165.6
<3 <3 <3
8-3-66 at 1 M
137.8 151. 3 161. 1
<3 <3 <3
The immediate foreground of the path is covered with grass. A 4-wire fence is close to the van. The path crosses an 8-m wide creek bed at 50 m. There are 10 -m high trees at 0.4 km. The horizon is at the cre st of a hill, approximately 2.4 km away.
146
R3-40-T3 O&C
LOWRy BOMBING RANGE W
1 to
V:: ~ r---- ::v I I< •• • • ~! •••• '/ '--..,/ . ' " •• .
•• t ••••• • . . • I.· ' ..
y . ' . • •••••• • . . . " f • , . ., . 120
. . . .. - 130 • .D 230 HHZ 9/13/&& -U -- OPEN • 0 •••••• CONCEALED c -II 140 I I II 0
..J
c 0 -.. II -• II C 0 11 0 ~ .... u -II G m
120
130
~
I \ \/ ~~ f\ V rv ~ ...... , '. . • • .' .. .' .. ... . .~ ... . . ' . # . ' . ' ...... • • • ~ . t ••• . . .
• • •• • • 410 MHZ 9113/&& -- OPEN •••••• CONCEALED
I I
2 8 10 12 "
18
AntennG Heifht Above 'round ift He,er,
147
.. v • o c
R3-40-T3 O&C
LOWRY BOMBING RANGE W
t20~--~-----T-----r----~----~----~----.---~-----,
, ••• *. • ,. .. .. .••. . +. ..' + •• . . +. I· ••
•• + •• t. ,• ~:\: •••••• \ . . . • t.: '\... , . .,..: • t40~----~--~·~------+-~·---+~~~~----~----~.~----T------1
751 MHZ 9/t3/" OPEN
• ••••• CONCEALED .. 150L-----~------1------~----~------L-----~----~------~-----~ .. o ..J
c o .. It
~ 120 ill:: o ... t-
V
It
910 MHZ 81 3/" OPEN
•••••• CONCEALED : 130~----~----~~--~_+----~~~~_+--~--~~~_+------4_----~
I. . .. +. ... ,. • :. ,\
140~-----r.r-~~r-~r-~~~~~~·~~~~~~~~~~ __ 4-____ ~ +... . ... +.: • ••• • • : •• • •• • • \ . •• •
. . ... +. t. . ~
'50~--~----~----~----~--~ ____ ~ ____ ~ ____ ~ __ ~ o 2 4 , 8 10 12 14 l' 18
Aftl.ftftQ H.igh\ Abov. ',ouftd ift H.\."
148
R3-40-T3 O&C
LOWRY BOMBING RANGE 130
1846 HHl 81 3/" - OPEN
\ · ..... CONCEALED
/\ 1\ A
'v V'" vvv v V"""" ·VV"-" ~ ...../'V" ,,/\r ~
150 • · • • · . ' ~ .... '" ,. t .' +. • ....... t. • • •
'. • t It •• fIt •• • + ' ft' ,+ + .... • .. t· • , . - \ , . ... . . .: ...... '\ . \' , • • • ... fit • • ..
II 160 -• .0 - 150 u • 0
c - ~ ~ -.. ----.. - -r' -II II 0 160 ~
c 0 -II II -E
+ I • , ........ ,. to, ......... tot ..... t •• ......... .. • + •• •• ~ ...... + ~ ........ ..... • .. 170 c
a ~ ... .. 595 MHZ 81 3/" u - OPEN --II
...... CONCEALED a
CD 180 I I
150 ~ --. I I
9190 MHZ 81 3/" -- OPEN • ••••• CONCEALED
160
\ V ~ ----... ~- r--
170
•• . ~ ~;,,,,.I.\ .. , ......... It •• • ...... ' •• . ", .. , . ,1 ... ~ ...... + .. ~ ..... • • ' .t .. 180 o 2 , 9 10 12 16 '8
Aft\lftftQ Hli,hl Abov. 'rouftd ift HIllrs
149
1 o
RCVR. ELEV. 1995 M
R3-40-T3 CONCEALED PATH LENGTH 44.71 km
XMTR. ELEV. 1774 M
Freq(MHz)
50%
610%-90%
, 8
1
"
• 2000f1
. "00" 1
2' I< I LOf1ETERS
, 32
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595
9-13-66 at 15 M 8-3-66 at 15 M
120. 5 125.3 136.2 139. 5 152.0 168.2
<3 <3 <3 <3 <3 <3
1 '0
9190
176.8
4.3
8-3-66 at 7.3 M
50% 138.0 152. 5 166.8 177.6
610%-90% <3 <3 <3 6. 7
8-3-66 at 1 M
50% 138.8 151. 3 165.3 175.6
610% -90% <3 <3 <3 4.2
There are 10-12 m high trees at 10 m along the path. The rest
of the path is essentially identical to R3-40-T3 OPEN.
150
R3-50-Tl DOWE FLATS
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 1770 34' 15" T.
151
90
'00
.: 110 v • o c
: 120 o
....J
c o
• • .- , 30 • • c G ... .... v
: 140 all
'5 0
"0 o
230 MHZ .... ., . "'0 MHZ R3-S0-T1 75' MHZ
-.-.~ 910 HHZ ...... '8'" HHZ DOWE FLATS .. 595 HHZ 9190 MHZ
V ~ ~ - ~ -~'" ~ -A tit ........ .. . ..... ,.,
• • • • • • • •• • •• ' .... I • \ /
", .... '\ II' A V~\./_\. /~: "J \ v \, 1/'\--- VVV rV'\/, " '. ~, ".... , .. ... \ .... ~\\/ ... './ ........ ( r-t' ....... \ / '" " '.-' " ..... \ . . "'(' ......
~. ~ ~ .. ... '. 1 , '" ..
' •••• 1 I." 1-'-" ,.. .~. ". 1 ". -.n I •• ',
I •• III.' •• . , • ' 1,1 ......
II •• • •••• . • \ I'\, v".' v-..
~- .. -.-" -. -. '-'- --~--- 1-.--
- -/V'- 10-
2 8 fO '2 , .. Aftttftfto Hti,ht Abovt Grouftd ift H.,.,.
152
'0' .. ,"
7, ""
I"'"" (/J
(/J
0 II-
<!) Of--
~ U)
<!) <!) !-! ~I-......
--
. .... ---,--
.....
-
--
" f8
t o
R3-50-T1 RCVR. ELEV. 1995 M PATH LENGTH 50.57 km
XMTR. ELEV. 1671 M
- 2000"
t 1 1 t 0 20 50
I< I LO"ETERS
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
10-4-66 at 15 M 7-1-66 at 15 M
50% 112.8 118. 1 122. 1 124.8 130.4 137.8 144.7
LHO% -90% <3 <3 <3 <3 <3 <3 <3
7-1-66at7.3M
50% 126.8 132.3 137.8 144.7
1',10%-900/0 <3 <3 <3 <3
7-1-66 at 1 M
50% 126.8 132.2 134.2 147.8
1',10% -90% <3 <3 <3 <3
1 50
The path extends over grassland. It crosses an irrigation ditch at 30 m. There is a power line below the level of the van at 400 m, and also a telephone line. At 1 km, there is a house, and at 2.3 km, a few scattered trees.
153
R3-50-T2 HIGHLAND NO. 2 RESERVOIR
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
06 34' 40" T.
154
100
110
II -• 120 .a . -u • 0
c .-II 130 II 0 ...J
c 0 .-II II - 140 .. II C G ... .... U
II 150 G m
160
170 o
R3-50-T2
-.-...... 910 HHZ 71 'I" I .. II. t8~' HHZ
~595 HHZ 9190 MHZ
HIGHLAND RESERVOIR NO. 2
f .... " ", I'~" ~ 1\
l , I " . " • , ...... \.t' . ...... ,.".~ ... " \/ ... .. " .... "../' .. '.1
• '" ,1\ 1', j\-, -.--\ 1.1 II
" .-. I ........ " . 1--••••••••• ~ II II ........ ~ ... ." . . " ~". _. II· '.' ..... ..... , . •• .. ' . ..
'\ I\. -- - '- -'-- -.-\/ ... ............ --- ..... __ .
,.....- -- -.... -......... V'-"'" I--- --
r-OOt--00 0 H Q) u
L~ U)
t--
Q) Q) H ~ -
2 6 8 10 12 1~
" 18
A~l.ftftO H.igh\ Aboy. Grouftd ift H.l.',
155
t o
RCVR. ELEV. 1995 M
t t 0
R3-50-T2 PATH LENGTH 50.98 km
- t 950H
- t S50H I ,
20 SO KILO"ETERS
XMTR. ELEV. 1583 M
t ~O
1 50
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
7 -6-66 at 15 M
50% 126.6 131. 2 138.4 144.3
.610% -90% <3 <3 <3 <3
7-6-66 at 7.3 M
50% 123.8 131.3 139.2 145.3
.61010 -90% <3 <3 <3 <3
7-6-66 at 1 M
50% 135. 1 128. 1 137.0 145.5
.610% -9010 <3 <3 <3 <3
There is a wheat field in the foreground of the path. At 90 m,
a fence and telephone lines cross the path. A lake lies on the path at
O. 8 km, with a few tree s at the edge of the lake.
156
R3-50- T3 MEAD SWI
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o 19 aI' 35" T.
157
100
110
.. .: 120 u • o
: 130 o
..J
c: o .. .. "i 140 .. c: o .. ... u
: 150 CD
16 0
170 o
R3-S0-T3
MEAD SWl
~ j.
+ + ' + ,
/.+~. ~'f:j, ''// \ 'I "I . ...
II . . • . . . . . . .'. . . . . . 'II • •
\ \/\ '"",-~"""
~ J
2
230 MHZ 912'''' ~ " ....... 4 to MHZ
75t ttHZ -li""""-"'I! 910 HHZ
71 "" Ii II " II •• 184' MHZ 4595 "HZ 9190 HHZ
-....,.- -
~ ---~ ~ ~,-,,"'-t-.,~ r---- --, ...... .t. .' ...... ...... . ... ~ ...... ........... .. ...... ........ t·+ +. + " •
...... " I' V\'" /\ .,/\"!Y.. ~-"" - -.-~ ...... --v""V'~~ -'?;)"'~ ... ~~ ~ -a--v .. • .. \.1 ... -.' ... ',,"V"y'
!t-....... '.-II ••• • li'I •••
• '11 •••• .- ,'.-.' '*' ~' .' 11 ... _ • ia-" ..... • •• 'II ,
- ... --1-.-.-- ---- --' --- .. _-.-- -
--./\ '- ........... -
1-----" k--'" - r~ r-... [f1
[f1
~ (!) ()
~ 1-
(!) (!)
H J=:t; 10...
6 8 10 12 14 16 18
158
, o
R3.,.50-T3 RCVR. ELEV. 1995 M PATH LENGTH 50.21 km
XMTR. ELEV. 1535 M
Freq(MHz)
50%
LUO%-90%
50%
610% -90%
50%
610% -90%
1 10
1 20
- 1950"
- 1350"
J( I LO"ETERS
t 30
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-26-66 at 15 M 7-1-66 at 15 M
113. 1 116. 1 124. 1 125.7 128. 1 139. 1 154.0
<3 <3 <3 <3 <3 <3 4.7
7-1-66 at 7.3 M
124.9 128. 7 137.2 148.0
<3 <3 <3 3.4
7-1-66 at 1 M
126.7 132. 1 135.9 148.7
<3 <3 <3 6.0
, SO
The first 100 m of the path is covered with grass. This is b'l'oken at 75 m. by a fence. For the next 440 m, the ground is covered with corn, and the next 1. 2 km are covered with wheat. At 100 m, a 15 -wire telephone line eros se s the path. At 1. 6 km there are tree s and buildings on the far side of the path.
159
R3-50-T4 OPEN AND CONCEALED MEAD NE1
PATH VIEW FROM OPEN SITE
Bearing froITl COITlITlon receiver site to transITlitter site is o
20 14' 29" T.
PATH VIEW FROM CONCEALED SITE
Bearing froITl COITlITlon receiver site to transITlitter site is 20 0 27' 20" T.
160
230 HHZ 9/26"6 ...... 410 HHZ R3-S0-T4 OPEN 751 HHZ
-I-'''' 910 HHZ 71 6/"
MEAD NE1 ••• :J t • 1846 HHZ
4595 HHZ 9190 HHZ
100
I I 0
• -• 120 ~
u
v ~ V ~ r--..._ -~ --
/ . . . • • ' .. . .... • . . . • . . . . . • * •••••• • •••• . • . . . . ' .. • . ' .. . ' • . ..
• 0
c .-• 130 • 0 ..J
c
. ,,-/ "\X<
~.
'-,./,.v; f/.7:;:" vV\ --~v.~ ~ ~ ... ~/. -.--
\.. . T Y rr ... y.,. ,/
" 't ,', ,., .. "'I I I· .... ," -....... Ia········· .. ~"'."." . .......... ..... . , '.1 .~. .'
..... 0 -• • - 140 to • C
, \.'\ ~'.- . .... ,1'-~_.hV ·_,J ..... v ".',' ---- -
.~--- -.--. ""\ ,,"" -G ... ~
u .-• 150 G m
\A,l- ~ --
... "---- --'" ./"" ~
~ Ul Ul 0 ~ Q) t)
I_~ 1-
(f)
160
Q) Q) !-l ~ .... 170 o 12 14 16 18 2 6 8 10
Aft\'ftfto H,i,h\ Abov' ',ouRd ift H,\,r,
161
t o
RCVR. ELEV. 1995 M
1 1 0
R3-50-T4 OPEN PATH LENGTH 54.32 km
- 1900"
• I tOO"
t t 20 50
KILO"ETERS
XMTR. ELEV. 1529 M
1 50
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-26-66 at 15 M 7-6-66 at 15 M
50% 113.5 120.9 128.0 125.7 131.2 141. 5 149.9
~10% -90% <3 <3 <3 <3 <3 <3 <3
7-6-66 at 7.3 M
50% 127.6 131. 8 137.8 147.8
fllO % -90 % <3 <3 <3 <3
7-6-66 at 1 M
50% 127.4 131. 9 138.5 146.0
~10% -90% <3 <3 <3 <3
The ground covering of the path is weeds and hay. A fence runs beside the van and crosses the path at 100 m. At 440 m, a house and 16-m high trees are on the edge of the path. At 0.8 km, a fence, a telephone line, and an interstate highway cross the path.
162
110
120
.. 130 -• .a -\I • 0
c: t.40 --.. .. 0
...J
c: 0 .-.. .. -Ii .. t 10 c: 0 .. ...
.\1 -.. 0
CD 120
130
'''0 o
R3-50-T4 0&(
MEAD NE1
/v ~ ~ ~ / . ." . ' .. 0
0 o· .. . .... o· • o •
0 .. o' •••• • 0 , .. .
0' . 0
0 .
~ /".. .;0...
/ " J 'V .......... ,/ ~
........ '~ . o· • • . " ' . • 0 ' .. • ' ..
0 • • • .
2 8
-----~.-. V ---. ". .. .. , 0 •• , ... • + . . ..... . ...
It
230 MHZ 912&,&& -- OPEN ...... CONCEALED
I I
"'0 MHZ 912&'&& -- OPEN .••••• CONCEALED
/\.
"-- .........- ./ '\
.f . oO •• ". , ... ,. '. .. . ' .
'2 , .. "
18
Antenno Height Above Ground ift Heter,
163
R3-S0-T4 0&(
MEAD NE1
... , .... .t. •.• .,1. l+ .......................... . . .... .... . : ,........ I. .. .. .... . 140~--~·L4--~·~·~~\~·--4------+----~------+-----~----~-----,
.. . • 151 MHZ 9/2&1&&
-- OPEN •••••• CONCEALED
~ 150~----~----~----~~----~-----L----~-------------------J o c
.. .. o
...J
c o .. ~ 110 s .. C G ~
I-
u .. 120 G m
130
140
150 o
I r I
910 MHZ 11 &1&& ---- OPEN .......... CONCEALED -
( !'vA V'v'\ ~ ~ ...J'../V ~ ~
• # •
/' • '0 •• • .. .. . ... •••••• + •• ' .. 41 • • ... + .... ,. .. • . , ....... ;.' .. ......... •• + • . .-. • • +." .. o • . . - o • •
2 , 8 10 12 1& 18
Anttnna Hti,ht Abovt Ground in Htlt'S
164
R3-50-T4 0&(
MEAD NE1
120
1S"& MHZ 71 &/&6 -- OPEN ...... CONCEALED
(\ V\fv ... ..... ~ VV
~~ "V
130
140 --------._--
# .. -• 150 .G
••• ... .. .... • • ..... I •• .. . ...- ....... It •••• • . ... .' • •••••••• ..... ~., . • . .. .." -........ • •
u • C
c 0-.. .. 160 '---
0 ~
c 0 .. 130 .. _ .
Ii "595 MHZ 7/ &/66 .. c -- OPEN ., .. ......... CONCEALED .... u 140 0-.. "
\
V\ --. ,.. "."...-.v -....;-...r rv ,. If-""V
" m
150
160 • • ~ .. -...... • •• .. ........... ... ' .. '1" ........ • • ... .. .. • fit .... .. ..... . ' . • " ..
170 o t2 18 2 6 9 " 10
Anlenna Hei,hl Above Ground in HeIer,
165
R3-S0-T4 O&C
MEAD NEl
120
9190 MHZ 71 &1&& 130 -- OPEN -........ CONCEALED
• - 140 • .Q .-U • 0
c -• 150 lit
V"'y L.- ....... .r--~ .. "" ,.......... ...,-1'---\
............ 0
...J
c 0 .-ft
• "0 -5 • c G ...
to-
U - 170 • G CD
.. ' ••• ,ft ••• ......
• .' ••• t •• #t.+
' .. ...,..... . ........... I't' tt' • " t.' .... t • • . \'. 1\. • ...
180
190 o 2 8 10 12 1& 18
166
t o
RCVR. ELEV. 1995 M
R3-50-T4 CONCEALED PATH LENGTH 54.40 km
XMTR. ELEV. 1528 M
Freq (MHz)
50%
fl10% -90%
50%
fl10% -90%
50%
flI0%-90%
1 10
Trees,
- 1900M
• 1100"
1 1 20 '0
KILO"[TERS
, 50
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-26-66 at 15 M 7-6-66 at 15 M
122.9 129.8 136.8 138.9 166.5 178.3
<3 <3 <3 <3 8. 5 4.9
7 -6-66 at 7.3 M
140.6 145. 2 164.3 176.9
<3 3. 2 <3 3.8
7-6-66 at 1 M
143.6 144.8 162. 1 177.4
<3 6.0 <3 4. 2
16-m high and 3- to 440 -rn deep, are on the path. The
path also crosses marsh land and the edge of the lake.
167
R3-50- T5 MEAD S4E5
FA TH VIEW FROM TRANSMITTER
Bearing fro:m co:m:mon receiver site to trans:mitter site is 30 0 50' 08" T.
168
100
t t 0
• -• 120 A .-U
• 0
c: .-" 130 " 0 -' c: 0 .-• • .- 140 &
" c: G .. ~
u -• 150 G m
, 60
170 o
R3-50-T5
MEAD S4 E5
230 MHZ 10/ 5/&& ...... 410 MHZ
751 MHZ
--.....
/ ~ ~ l/' ~ ~~ V
i --
.t ... oft .... 11>. • , . .... . - ". . . . , , , , • • • ••••• • • • '. ' , ... ' ... • ' .. 00 , ... , • 00 , ~"'\
0
; "v r",-
~-........." v-- ............... / ~/'/....; ....:1 Vr" r---""'--'- 1-----I Q) C) , :g L-
U)
Q) Q)
H ~ .....
2 & 8 10 12 Ie 1& 18
AftltftftO Hti,hl Abovt Gtouftd ift Htltt'
169
, o
RCVR. ELEV. 1995 M
, , 0
R3-50-T5 PATH LENGTH 49.70 krn
- 1900"
• "00"
1 1 20 '50
I< I LO"ETERS
XMTR. ELEV. 1482 M
Lb (dB) SHOR T TERM SIGNAL VARIABIUTY
Freq(MHz)
50%
L'l10% -90%
230 410 751
10-5-66 at 15 M
121.0 130.0 134.4
<3 <3 <3
910 1846 4595 9190
The path extends over open terrain and hay fields. There are
16 -rn high tree s at O. 8 krn.
170
R3-50-T7 FOR T LUPTON E3
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 48 0 59' 47" T.
171
2'0 MHZ 9/28/&6 ...... 410 MHZ R3-50-T7 75t MHZ
910 MHZ 71 8/&6 ...... 184' MHZ FORT LUPTON E3 4595 MHZ 9190 MHZ
100
.. -• 120 .G -V • 0
c
l~ "'-~ --~ .../'-~ V\ --
/ .* + + + + ~*. ......... • + ........ 4 . ......... ........ + oft ••••••• .....
'0 + 0 o 0
; ~ .......... • 1\ ~\""" ~x>!.\ "" ... ~" V,-./--" lv' \,,,j U~\I ". /". --' ...... , .. r"''''''',",~ V·....r· V·-.,",~ ~"",-~. " '.' -,--
110
.-• 130 • 0
-oJ
I . , . ",.' 'I.· .. I ••• '. e. I, I- II· •• II', ',' ........ ........ ",, ~ ........... ., II' I •••• . •••
C 0 .-• .. - 140 & It C 0
~~1 ---" -- - .. -_.- ------'I" ~--... l-
V ~ r-----.., --.--- ...--It 150 0 {]}
CD (/)
0 ~ ()) U
-~ r-U)
"0
()) ()) 1-< ~
I.... 170 o 2 '2 "
18 8 , 0
Aft\lftftG Hli9ht AbovI "OUftd ift HltltS
172
, o
R3-50 -T7 RCVR. ELEV. 1995 M PATH LENGTH 50. 24 km
XMTR. ELEV. 1548 M
Freq(MHz)
50%
ldO% -90%
, , 0
- , 900H
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-28-66 at 15 M 7-8-66 at 7.3 M
114. 1 116.2 122.5 124.8 131.0 141. 3 146.2
<3 <3 <3 <3 <3 <3 <3
The path extends over dry-weed fields for 1. 6 km. At this
point, there are 16-m high trees.
173
t 50
R3-50 - T8 BARR LAKE E4N3
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 63 0 50' 19" T.
174
90
, 00
.. .: 110 u • o
: 120 o
...J
c; o II II
- 130 & II c; G ... .... v
: 140 m
15 0
16 0 o
R3-50-T8
BARR LAKE E4 N3
v-~ ~ 4i." .... ... , ' , . • :'/ v,
" )0/ V\1 I ' .... I' .. V
~. I • • . . , .. '. " .~. 1 1 '1 • . . . • • •
" ' ..... _- ... -.. --""- /_.
2
230 MHZ 10/ &/&& ......... 410 MHZ 751 MHZ
-li-..... 910 MHZ 71 8/&' ...... 104& MHZ 4595 MHZ
~ U~ I'v ~ i'-- --• , . ," ... . . .. ' . . . . . ... ... .... , , . + •• - . , • 40 ••• ... .. . ' .. '. '.' • • •
~~ ... )....;.~~ ~< .. ~~ ~~~...; ~' ---I--
• I ... ' ." . ' . . . -............ . .... III,' • 1-'.',' •• • ,I • ~.'\ .' ,. .. ,'
.-.--- ... ... ....., .... ""-. fo--~ -'-- -.- ... ---
"Ui (fJ
~ H
Q) U
l~ -~
Q) Q) !-l
U;:J
8 , 0 12 "
18
175
1 o
R3-50 -T8 RCVR. ELEV. 1995 M PATH LENGTH 49.50 km
XMTR. ELEV. 1567 M
Freq(MHz)
50%
,110% -900/0
50%
,110% -90%
50%
,110% -90%
1 to
- 1900"
• 1100"
1 1 20 50
K I LO"[T[RS
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595
10-6-66 at 15 M 7-8-66atI5M
114. 1 116.9 126.8 126.2 127.0 140.9
<3 <3 <3 <3 5.9 <3
7-8-66 at 7.3 M
126.4 126. 1 143.0
<3 5.0 5.0
7-8-66 at 1 M
128.9 129.9 142.1
<3 <3 5.0
9190
The ground is covered with stubble for 2.3 km. At this point,
there are l6-m high trees.
176
R3-50-T9 LOWRY BOMBING RANGE N
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 109 0 55' 43" T.
177
.. eo .D
u eo
o
.. .. o
..J
c o .. .. " .. c
" ... .... u
R3-S0-T9
LOWRY BOMBING RANGE N
•••••• 410 HHZ 910 MHZ
...... 184' HHZ 4595 MHZ 9190 HHZ
9/13/" 81 4'"
100~-----~------~------~------~-----~--------~-----~----~----~
ItO ~----~----~------+------+------r-----~----~------+------i
.... . .... ' . . .... . . . . ....... .. . . . . .............. ... .-
.' ..... .. . .. . .. .. 120 ~--.~·~~------~~~~.~·~~----~·~------~------~~·\~·----~~.~:-----r------1
• ..... ' . ....,~. " ..
" ...... /\ " ... ~ ) \ n I
r"...~-. • '10-" \- ..... ~ ............... '. ., '. ". \, '. I " I ''...... 0, _, .... .., ... ".. _., \ ''/
130~----+-----~-----r------+------~------~----+-----~-----i •• I ••
."-, I' II •• _ .... ~~ ..................... , , , J • III I' ..
I. ~ ..... III .... • •• ••• II' _.' ••••• . -.. ...... .. "' 140 ~----~-----4------+------+------~----~-----4------~~-~-~-~
..~.r '_J.I .... _ .. .",...._-- ... , ... ,.-_ .... - ........ - --'-.- ... ---....., ..
: 150~--~~~~~~ __ ~~~~~~;--c==-~~~~--~--~~~~~--~--~~----~~~~ CD
160r-----+-----~----~-----+----~------r_----r_----~~
170~----~----~----~----~----~------~----~----~~--~ o 2 .. 6 8 10 12 14
Antlnno Hli,h\ AboYI G'ound in HI\I's
178
t o
R3-50 -T9 RCVR. ELEV. 1995 M PATH LENGTH 49.60 km
XMTR. ELEV. 1776 M
- 1950"
- ,.50" , , , , 0 20 '0
KILO"ETERS
Lb (dB) SHORT TERM SIGN.AL VARIABILITY
Freq{MHz) 230 410 751 910 1846 4595 9190
9-13-66 at 15 M 8-4-66 at 15 M
50% 114.8 125.8 135. 2 142.8 149.2
.610% -90% <3 <3 <3 <3 <3
8-4:-66 at 7.3 M
50% 126.2 135.6 142.4 149.4
.610% -900/0 <3 <3 <3 <3
8-4-66 at 1 M
50% 126.6 132.9 144.8 150. 2
.610% -90% <3 <3 <3 <3
A road and weeds occupy the immediate foreground. At 100 m,
a snow fence and a telephone line cross the path. The path then
crosses a valley that is covered with grass.
179
R3-50- T10 LOWRY BOMBING RANGE S
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
117 04' 54" T.
180
100
11 0
.. .: 120 u • o
: 130 o
...J
c o .. .. "E 140 .. c o .. t-
u
:; '50 CII
16 0
170 o
R3-50-T10
LOWRY BOMBING RANGE S
I
r" V '" h/ f .t • + •• .' . , .. , . , , . . . . , ,
(; r ' , , . 0
\ rv v. ), ---~ ''''~/''' ...
\ '(~ ~ I, .... , \ I . '-.; \ , "-.,0 \/ ... \ \ ~ V . I \ .. .
• .. . . - • • . • . '. ' •••• '!J' • . . . . .. .' ,,' .,' ... ", ., .. · . .. . . . .' •• • · • .. . • · . • ,
I 1/'" ~"-
........... ... ~ .. -- -'.' ...... _---- -. -- .' .
"" .".....,
'" ~ ~ ~
230 11HZ 9/13/" •• • •• • .. 10 "'HZ
751 11HZ -,-.-. 910 HHZ 81 .. 1&& .... _. 18 .. ' 11HZ
.. 595 11HZ 9190 11HZ
r>v ~ V --,., , ... " .. ..... . . '0 • , '0 i \ or 1\/\ I'- ...... , \ I '" '" --
IX/'~j , .. r'Y' -.--. I ' \ " - li ,I \
. .... • II , •
II· •• ', ,., .. , , .. ' " . ~ . .. . . '.' . 11 '. " " . •
---/"'"- --,-- -".-1_-_'-- ... --
""1---til
r------ ,.... til 0
...:1 v ()
.~ I--U)
(]) V !-I ~
.L-
2 .. 6 8 10 12 '6 18
Antennc Height Above Ground in Heters
181
1 o
RCVR. ELEV. 1995 M
1 1 0
R3-50 -T 10 PATH LENGTH 48.92 km
1 1 20 '0
KILOMETERS
XMTR. ELEV. 1875 M
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
9-13-66 at 15 M 8-4-66 at 15 M
50% 112.6 114.3 124.5 125.6 134.7 144.9 152.0
fl10%-90% <3 <3 <3 <3 <3 <3 <3
8-4-66 at 7.3 M
50% 124.9 136.3 144.1 151. 2
fl10% -90% <3 <3 <3 <3
8-4-66 at 1 M
50% 124.9 131. 2 141. 9 148.8
610'10 -90'10 <3 <3 <3 <3
The immediate foreground is a road with a fence and a telephone line at 15 m. There is pasture land with farm buildings at 0.5 km. Just beyond the horizon (0.8 km) and to the right of the path is a microwave relay station, with power poles near the station.
182
R3-50- TIl PARKER S1
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
127 47' 29" T.
183
230 "HZ 9/12/" •••••• 410 f1HZ -- 7St "HZ R3-50-T11 -.-..... 9tO f1HZ 81 3/" ...... t84' f1HZ PARKER S1 4595 f1HZ
9t90 f1HZ '00
110
.. -• '20 .A --" • 0
c --.. '30 .. 0 -' c 0 --.. .. -- '40 a ..
~ ~.\ V- V· ~ --
I ........... K' '''1 ' + .•. . +. ~ +. + .. + ... . ,
+ t ..... + + • • • • • / 1'. \.. '--'i •
11\ + •
\1 l./+:'\: /\ ' I): ;-' (' J\ r, --......
\ .. ~ \ / .\ /" ' I -,--\
i ,{ ",v.,. II /,.~ f \, " " VI " . '\ i I \/ • I' .. ; \ I r\ j "I '\ .", , / r. · • \ ;, •• v ••• ." .... \.1 ., .
". . ~ '" I, : . .... · " .'. r "V' .. ......... ,'. "." ,.. ".. ' .... "' ...... · I, : , : " '10 • '10. ,I •• • · . .' ...... " 1# II ,; ~ • IV ... ... · • II II ., '. '. ~-. y • • • • · ·.1 ~, I · .. ., •
• II • • (\ ~/" A~A.;"'" - ".'\'\/' I .... - - -~- -, IV r- \; --,
c 0 ... t- ~ r-------~ --~"'" .AAAA. ~ ...... r--. ryry""
" -.. 150 0 -CIl m CIl
0 H (!) u
!-~ f--U)
"0 (!) (!) ~
~ .... 170 o 2 , 8 to t2 t' t8
Aft\.ftfto H.i,h\ Abov. 'rouftd ift H.\.r.
184
, o
R3-50-Tll RCVR. ELEV. 1995 M PATH LENGTH 49.15 km
XMTR. ELEV. 1804 M
Freq(MHz)
5010
610%-90%
50%
610% -90%
50%
610% -9010
1 10
1 1 20 '0
I< I LO"ETERS
t .0
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-12-66 at 15 M 8-.3-66 at 15 M
112.8 118.9 122.5 128.0 133. 1 139.6 145.6
<3 <3 <3 <3 <3 <3 <3
8-3-66 at 7.3 M
129.8 132. 1 138.8 144.6
<3 <3 <3 <3
8-3-66 at 1 M
124.0 131.3 140.1 144.0
<3 <3 <3 <3
The site is located on a gravel road. Wild grass covers the path for 400 m. Then, the path is crossed by a highway, and power and telephone lines. There are metal buildings and nursery buildings at 500 m. There is low grass for the next 1. 6 km, and then a stream and a row of 20 -m high tree s.
185
R3-55-T1 ISH RESERVOIR NE2
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 120 52 1 08" T.
186
no
120
.. -• 130 .Il . -u • a c . -.. 140 .. 0 -J
C 0 .-.. .. .- 150 Ii .. c 0 ... ~
u .-.. 160 0 CD
170
, 80 o
230 MHZ 10/ 4/66
R3-55-T1 ••• • • • 4' 0 MHZ
751 MHZ
ISH RESERVOIR NE2
V ~ V ~ !-----. /" I'v -~
/ ... .. ... . ...
~. . ..... ~ ~. ... •• • .. 4o ... , . . ~ . . . . .......... . "t. .. + •• '0 • . . . '. . ' " . . .
:/ r" '-,../ "-./--... v"-./'-... I-"~/' v"'--- -""-/ .... "y\
2 8 10 12
AftltftftG Hti,hl Abovt Grouftd ift Htltr,
187
--..... --
-til til 0
....:! Q) ()
-~ -U)
Q) Q) H ~ -.
16 18
1 o
R3-55-T1 RCVR. ELEV. 1995 M PATH LENGTH 55.23 km
XMTR. ELEV. 1533 M
Freq(MHz)
50%
610% -90%
, t 0
, 20
- 1850"
• , 250"
1 SO
I< I LO"[T[RS
, 40
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595
10-4-66 at 15 M
128.1 134.3 138.2
<3 <3 <3
9190
The path extends over a wheat field for 2. 4 km. A telephone
line crosses the path at 65 m.
188
R3-60-T2 OPEN AND CONCEALED MILLIKEN E2
PA TH VIEW FROM OPEN SITE
Bearing from common receiver site to transmitter site is o 28 52' 39" T.
PA TH VIEW FROM CON CEALED SITE Bearing from common receiver site to transmitter site is
29 0 00' 24" T.
189
230 MHZ 101 51&& f. .. '" ..... 4 to 11HZ
R3-60-T2 OPEN 75t MHZ -'-1"-"): 910 MHZ 7/13/66 ...... 1846 MHZ MILLIKEN E2 4595 MHZ
9190 MHZ 1 1 0
1
I --120 .....
III -to 130 .1:1 . -V to
0
C-. -III 140 III
V ~ v-' ~ ~ y ~ ---.--/ #.+ .....
~ . # • . .. . . /.., . . . ' .. •• ... ..... '.' • . . • • · ~'-
IV\/' a I I •• .
''V...-...... ----1--...-- f-,/\J . , ~ . \¢/ ------1/ "'/" \ ,"""1"'.- .~ ... -. .. ,,-y ........ ...... /\ ... '\, "," ,,'-'-",. ~II""", 0
..J I ---C-o .-III I --III .- 150 to III C-
l •.• - •.••• , 1., ....... -... -~ . .. • . . • " ....... ", ... r,
I · , .,1 • , o ~ ~ t- 00
0 V . -.. 160 0
...:t '. ~--" ...... -. (J)r-V ~. _ e .. ' _ ..... _-CD ()
~ CfJ
\0 ~ -~ ~ ..... ~ ~ (J)
~ V'- (J)
~t--~I
170 ~
180 o 2 8 10 '2 '6 18
Anttnna Htight Abovt Ground in Mtttr,
190
t o
RCVR. ELEV. 1995 M
t t 0
t 20
R3-60-T2 OPEN PATH LENGTH 67.05 km
- 1900H
- 1100H
, so
XMTR. ELEV. 1436 M
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
10-5-66 at 15 M 7-13-66 at 15 M
50% 123.6 129.6 136.4 138.5 150. I 159.8 168.9
[\10%-90% <3 <3 <3 <3 <3 <3 <3
7-13-66 at 7.3 M
50% 137.5 150.8 160.0 169. 1
[\10 % -90 % <3 <3 <3 <3
7-13-66 at 1 M
50% 140.0 150. 8 158.8 166. 1
[\10% -90% <3 <3 <3 <3
A semi-dry field occupies the first 0.8 km of the path. Then
there is a large barn with a metal roof. The 17-rn high trees behind
the barn extend to the horizon.
191
.. • .G
u • o
.. .. o
...J
c: o .. ..
u ..
120
130
140
150
lbO
R3-60-T2 O&C
MILLIKEN E2
/ ~ ~
/
ill •••
" . '. , . • • , • . , • .. • • . , ,
V ~ ~ ~ ~
, . . " . . . .. . . . . ,,' . .' . ... '. . . , . . .... " .. ,
230 MHZ 101 51" --- OPEN ...... CONCEALED
I I
120~----~----~----.-----.-----.-----r-----'------'----'
: 130~----~~~~~--~-~~~~~~~~~~~~~~~~~~~~----~ / "V ~v ~ - ,...... '-' 'V ~ ~
. .. . . . . ... . - . 150~--~'+----~~·~~··~~·~·~··-··~·~··+·-·-·~··~·-··~·-·-··~ .. ~,-.~.~.~.-'-"~'--"~"-1----~ .. ..
• • • 410 MHZ 101 51&& - OPEN •••••• CONCEALED
1600~----2~--~4~--~&----~8----~tO----~t2-----'~~-----'~'6----~'8·
Aftt.ftftO H.i,h\ Abov. 'rouftd ift ".\.r,
192
R3-60-T2 O&C
MILLIKEN E2
130
/ rv ~ ~- ~ VV \IV' -140
150
.. -• .0 . -" 160 • 0
• • .. . . ' . .. + ••••• .......... • .'. ... . • • • t. • +. . • . • ••• <It + •• .. ,. , t •• .
It • • .' -~ \ • • •
c 101 5166 . 751 HHZ - -- OPEN .. .. ...... CONCEALED 0
...J 170 c 0 - 120 .. .. -Ii .. !
I I
910 HHZ 7/t3/G6 c G ...
.....
" 130
-- OPEN ...... CONCEALED -.. G
CD
140 I ~ ~ ~- -- -../"'-~ ~ -
I
150 --
.. ' ," " .. • . . #
• . . .' " .. •••• + •••• ~. + •• .' .'. ' .... ,. • ••• . . , . ..... \ .... .. .. , , . , 160
170 o 2 8 10 12 16 18
Ant.nno H.ight Abov. Ground in H.l.rs
193
R3-60-T2 O&C
MILLIKEN E2
140 1846 MHZ 7/13/66 -- OPEN •• 41 ••• CONCEALED -I ~ v'" 150
16'0
.. -• .D 0- 170 " • 0
c: -.. .. 0 180 oJ
••• + ,. " 4 ... '01'" .,. ,. ''"'''' 11 .... • .. ·-· ~ ... ~ ~ ........ ~ ...... I
+ . . . -. , +... t.1 . +
c: 0 150 - T .. .. - ..595 HHZ 7tt3/66 E .. -- OPEN c: G
...... CONCEALED ~
~ 160 ...... - -v " -.. " CD
170
180
t-- l.o- ....
" / .. -y .... o· ,. ,~ .' .... • ..' ~f·· ...... . + ... • . .. '." .......... '"-.......
190
•
2 .. 8 10 12 " 16 18
Anl.nno H'i,h, Abov. Ground in H"",
194
1 o
RCVR. ELEV. 1995 M
1 10
t 20
R3-60-T2 CONCEALED PATH LENGTH 67.27 km
• 1900H
• 1 t OOH
1 30 40 KILOMETERS
1 50
XMTR. ELEV. 1435 M
1 .0
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz) 230 410 751 910 1846 4595 9190
10-5-66 at 15 M 7-13-66 at 15 M
50% 139.9 148.1 159.9 162.5 174.7 193.0
~10%-90% <3 <3 <3 <3 <3 8.5
7-13-66 at 7.3 M
50% 162.2 176. 1 193.3
610%-90% <3 <3 11. 6
7-13-66 at 1 M
50% 164.2 176.3 190. 5
610% -90% <3 <3 6.0
The immediate foreground of the path is covered by dense, 17-m
high trees.
195
R3-BO-Tl LOVELAND N4
PA TH VIEW FROM TRANSMI TTER
Bearing from common receiver site to transmitter site is 05 0 26' 40" T.
196
100
tlO
It
.: 120 u • o c:
: 130 o
..J
c: o
It It
"& 140 It c: o .. .... u
: 150 m
1&0
17 0 o
230 MHZ ...... .'0 MHZ R3-80-T1 751 MHZ
- .. -..... 910 MHZ • I •• I • 18.& MHZ LOVELAND N4 .595 MHZ
9190 MHZ
[
/ I\v !'vA V\/" ~ rv\r --lAr I v ...... , ....
\ ....... " .o. ...... • •• .' ..... . , I- ... •• +. · . • .' ~. .. .. • • • . .' . • ••• • f',\ I :~ ~ L .... , /\ :, \../ v r-r v" V"v'" ...... v \" ~',,-, ........ \/ It··· 't ,.'" )1'"'0\ ,.. . .............. ~ ..... ....... , .......... " ~- .......... . .....,.., ........ -..... t-~"' '. /' . . I. I' r-' •• . . \ .. . .
• II __ .- 'II • ,,111, •• _,
• '" II ... I .... "' ... . • II I., .11 I, ............ . ......... •
~-~,.- "-, 1". ' ...... ,' ...... - "- --... ---..... ...... ----~.- .. r-'----- -"
_111 VV\i
~ 'I'----v--..r-- "\ I'V
I
2 & 8 10 12
Aft\tftftG Htigh\ Abovt G,ouftd ift Mtlt',
197
9/29/&6
7/121&6
--..... ---.--
.....
---
--P(jj' Ul 0 ~ (j)
u -I_~ rJ)
Q) (j)
!-! II:!!
,& 18
, o
R3-80-Tl RCVR. ELEV. 1995 M PATH LENGTH 75.82 km
XMTR. ELEV. 1576 M
Freq(MHz)
50%
~l.e% -90%
.. 50%
~10% -90%
50%
~10%-90%
, 20
- , 900H
- " OOH , .0
KILOHETERS
, '0
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-29-66 at 15 M 7-12-66 at 15 M
117.2 125.2 131.4 133.6 136. 5 142.1 150. 9
<3 <3 <3 <3 <3 <3 <3
7-12-66 at 7.3 M
134.5 136.9 140.9 151. 5
<3 <3 <3 <3
7-12-66 at 1 M
137.2 135. 7 140.4 152.5
<3 <3 <3 3.6
The path extends over wheat and plowed fields for 3. 2 km.
There is a fence in the immediate foreground. There are a few tree s
at 3.2 km.
198
R3-BO-T2 OPEN AND CONCEALED FOSSIL CREEK RESER VOIR
PA TH VIEW FROM OPEN SI TE
Bearing froITl COITlITlon receiver site to tranSITlitter site is 120 41' 11" T.
PA TH VIEW FROM CONCEALED SITE
Bearing froITl COITlITlon receiver site to transITlitter site is 120 39' 01" T.
199
140
150
.. -• 160 ~ .-v • a oc: .-.. 170 .. 0
...J
oc: 0 .-.. .. .- 180 E .. oc: 0 .. t-
V .-.. 190 0 CD
200
210 o
R3-80-T2 OPEN
910 MHZ 7/T3/&& . ....• 184& MHZ
.. 595 MHZ 9190 MHZ
FOSSIL CREEK RESERVOIR
I Free Space Loss (dB)
910 - 129.7 1846 - 135.9 4595 - 143.0 9190 - 149. 8
",._1 /.... ~ ~,
I
1'-' ,....". .,,' .....,.... I V .. \/'\, .. • ... ~" " , .... r'" - • .1- f', ~',r'"
/ ' " ... ... .. .. '\ ~
II •• • . . ., • I ,# , ~ .. , ' .. . , .. ' , , ... 1.',.. I . .
• ' I I • ,., • . ' .... • , I ....... ; - • • . ..
'. ,,' ,.'V\ I ,-" t'\ , /~". - I \
~/,J , , .-' ,_ J I • \ r\ , \ . .' \ \ - \ \ ) ~ ~AA I. ~ - \ / , \ \
" \
AA A A ~ \,
VV\ V\r Ii W~ ~ \~ M ~T rr T
~ V , ,
V
2 6 8 10 12 1&
Aftt.ftftG H.ight Abov. Groyftd ift H.t.r,
200
18
1 o
RCVR. ELEV. 1995 M
1 20
R3-80-T2 OPEN PATH LENGTH 80.27 km
- 1900"
- ltOOH
1 ~O
K ILOHETERS
1 U
XMTR. ELEV. 1481 M
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
Freq(MHz)
50%
610% -90%
50%
610% -90%
50%
610%-90%
230 410 751 910
155.3
<3
156.6
<3
158.0
<3
1846 4595 9190
7-13-66 at 15 M
167. 1 182. 1 190. 2
<3 4.6 7.8
7-13-66 at 7.3 M
168.3 183.0 190. 5
<3 4.6 8.0
7-13-66 at 1 M
167. 5 181. 1 192.6
<3 5.0 8.6
At 100 m, there is a 10 -m high tree to the left of the path. On
the right of the path is a dam, which is 5 m high. Plowed fields and
scattered tree s extend beyond this to the horizon.
201
1 80
150
160
• • 170 .0
u • c c
• 180 • o ..J
R3-80-T2 O&C
FOSSIL CREEK RESERVOIR
/ ~ V'-' ./\/V' ~
• + + + + + • t
+ .. .t· • + +-+'. .• .0. # to I> 1+0 : .. • •• •• . .. •
~ ~ ~
• ,+ .. ...... .. t .. :\ •• + .'
910 MHZ 7lt3/" -- OPEN ...... CONCEALED
..l
~ 150 ~------r------'-----'------'------.------r------'-----II-----' • • -& • C
18~' HHZ 7/13/" -- OPEN + 0 0 + +. CONCEALED
G L 160r-----+-----~----~----~----~------~----+_----_r----_i ~
u
• o tD
180r-----~----_+-----~------+_----~----~----_+----~----_;
190r------r----~------~_.o~~--+------r------~·-.- . !+ l' , • ~ .. ~ ,', o· \: .• ~ t. '.' o. '. o~o • 0 ~: .0 , 0 , • .0 \t ..:. • .. 0 • \ 0 :0 0 • :. .: 0 : \ 0. 0 •••
• + :. • ..... ~ '. :... 0'. •••• , • \. to •• ,. '.. " ~' .. ' •
'. '. • +. •
2000~--~2----~~----~'-----8~--~10-----,~2-----,~~----~,~'--~,8
202
R3-80-T2 O&C
FOSSIL CREEK RESERVOIR
160 ,--------r----r----r--~-~-__r"-__rl----,-I---,
t70~----~----+-----+-----~----~-----+
4595 MHZ 7/t3/" -- OPEN ..•..• CONCEALED
• t80~----~----+-----+-----4-----~~----~r--r~r-,,--~----;
~ ~i\rvvr\V VVU"'V • t90~----~----+-----+---~4-----4------+-----~-----r-----i • o -J
/C o
• ~ 200~----~----+-----+-----4-----4-----~----~-----r-----i ~
• /C G .. .... u .: ...... , :",. t. t
• • • •• • Lo. L:· ..~ · ... ' •• - ... ~. • •• • 2tO~~~~~w.~~.~.~.-4~~~.~.4.~~.~,4---~.~+-~~ •• ~_-'.~.~.~~--~----; " · .. . .....'~. ... .. CD ••• t.'. •. ,..,..~... ... • • I." t •• ~ •.. 1.· .. ' • .:-'
• • r \~: • .. 220~---4----~----~----+---~~---+----~----~--~
2 , 8 ! 0 '2 "
'8
203
1 o
RCVR. ELEV. 1995 M
R3-80-T2 CONCEALED PATH LENGTH 80. 50 km
XMTR. ELEV. 1480 M
Freq(MHz)
50%
610% -90%
50%
610% -90%
50%
610% -90%
1 20
- 1900H
- 1100H
t U
L (dB) SHORT TERM SIGNAL VARIABILITY b
230 410 751 910 1846 4595 9190
7-13-66 at 15 M
170.8 188.3 208. 7
3.4 <3 7.2
7-13-66 at 7.3 M
171. 9 189.3 206.2
<3 <3 6.8
7-13-66 at 1 M
170. 5 193.3 207.8
<3 <3 9.4
, 80
Marsh lands and 15-m bigh trees extend for 70 m to a 5-m high
bank at the edge of a lake. The path crosses the lake for 0.80 km.
204
R3-80- T3 WINDSOR SE3
. , . "
PA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is o
15 14' 13" T.
205
230 MHZ 9129/&& ...... 410 MHZ
R3-80-T3 751 MHZ -.-..... 910 MHZ 7/121" ...... 184& MHZ WINDSOR SE3 4595 MHZ
110
--120 .......
.. -• 130 oil . -U • 0
II:
/ '" ~ ~ / "" / ~ --I'\. -.--
~ ...... '" '" ! ..... + •• •••• . .. . . ' ... _ . .- .. Ii·.. .' ~ . . . . .. # ...... • . ... • • • ••• •• . .. ... .. • . . ..... •• . .. 140 ..
0 -J
II: 0
~ " ,. :/ 1---,
Ir"~ \ """. ,_..... "-~/·v IV'-.," ," ... -... ,"' v V ,~' V .... ... ............... ... v· ... ·,· ... · · .... ·~'I ....... .....,. ---,. . '. I i".-"....,,;·-., '\' .....
\ . , .. .. E 150
• I,. . .... - r-II • I' ••• •• I' • I •• (/) .
I •• •• ' • ' ....... J •••••• • I •••• I . . 00,"--.. 0 ..
II: ..:1 G ... .... u -.. 1&0 G
CD
Q) , " r----_. -- ......... - 1------ ---_. U
\ I . r-----. - . ..-.- ---I~ (/)
I---Q) Q)
H ~
10....
170
180 o 2 8 10 12 " 18
206
1 o
RCVR. ELEV. 1995 M
Freq(MHz)
t 20
R3-80-T3 PATH LENGTH 74.26 krn
• 1100H
1 40
KILOMETERS
XMTR. ELEV. 1540 M
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-29-66 at 15 M 7-12-66 at 15 M
50% 130.5 132. 5 138.2 141. 5 147.2 157. 1
6100/0 -90% <3 <3 <3 <3 <3 <3
7-12-66 at 7.3 M
50% 142.8 147.4 154.2
MO% -900/0 <3 <3 <3
7-12-66 at 1 M
50% 145.3 148.7 153.6
610% -900/0 <3 <3 <3
The first 19 krn of the path is dry and bare land. Then there
are a few trees. A highway crosses the path at 8 k m .
207
R3-80-TS LOWER LA THAM RESERVOIR E1
PATH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 38 a 29' 26" T.
208
110
120
.. -• ''SO .A --U • 0
~ .-.. '40 .. 0
..J
~ 0 --.. .. -- 150 ., .. ~ 0 L
I-
U -.. 160 0 m
170
180 o
R3-80-TS
LOWER LATHAM RESERVOIR E1
/' d "' ,,~-· ... V .... /1 ..... , ' ............ '-.-, .... -.,.-".. ... "
I " ,-, I
--, ,
II' • I.···. , • II .. •• ". II' • " e,' II •• I ••• II
, -, . ./~ -----~ -- ", ... -- - ... ,. - -' . -'
910 MHZ 7/11/66 . . .•.• 1846 MHZ
4595 MHZ
-. -
• I •••
~ ....... " .......... '\ "'-"I" \ /'\ t "'''.', ---
~ 00-00
• ••• I I ,I .......... .11 I" 0 ...:l (!) U
g ------- -. ./ (!) ._...,- -_. (!)
1-l ~ -.....
2 6 8 10 12 14 16 18
209
1 o
RCVR. ELEV. 1995 M
1 20
R3-80-T 5 PATH LENGTH 78.86 km
- 1800"
- 1000"
t '0
XMTR. ELEV. 1442 M
Lb (dB) SHORT TERM SIGNAL VARIABILITY
Freq(MHz)
50%
610% -90%
50%
.610% -90%
50%
610%-90%
230 410 751 910
144.4
<3
143.6
<3
147.5
<3
1846 4595 9190
7-11-66 at 15 M
151. 3 164.6
<3 <3
7-11-66 at 7.3 M
152.2 165. 5
<3 <3
7-11-66 at 1 M
152.5 163.8
<3 4.0
The path extends over dry, wheat stubble for 8 km. There are
15-m high trees at 0.8 km.
210
R3-80-T6 ERICKSON RESERVOIR NE2
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 29 0 30' 10" T.
211
100
! • 0
.. -• 120 .a .-y
• c c. . -.. 130 .. 0
...J
c. 0 . -It .. .- 140 & It c. G ~ .... y .-It 150 G m
1&0
170 o
R3-80-T6
ERICKSON RESERVOIR NNE2
/ v ~ r V
/ .' • + •• #>0 ... ~. • '0 " ...... '. .............. . ,
0 • .. . . +
+ . .AI'" .... . ..
.' "
\. .~. ~ ' .. r \' . 'II" , r
I I "
f • . . " I ,', ... I, I' •••• I ••• . . ' .. ' II, • • II • t ••• . •
-,,-- . -- f----- '-,...... . "- .. ,,, r- ---'"
~ ~ ~ ~ ""
230 MHZ 9/29/&& ••••• • 4' 0 MHZ -,-.- 910 MHZ 7/121&& ...... t84& MHZ
~
4595 MHZ 9190 HHZ
~ -• + •
• 0 0 +. .. .. +... • 4ft
. ..... --.. ' '. + . . . .
..... . " " ,'", 't ' .. \ I '.
I ••• • • I
....... ... II ••• '
--v --./ .-- .... -~ ~-
/'--..
V ~ !IV
--.. .....
-.--
• •• I •
---
--rm
til 0
..:1 (j) u
-~ -
U)
(j) (j)
~ 2 4 & 8 10 12 ,& '8
Aftt'ftftG H.ight Abov. Grouftd ift H.t.,s
212
R3-S0-T6 RCVR. ELEV. 1995 M PATH LENGTH 76.35 km
XMTR. ELEV. 1479 M
- 1800"
- 1000H
~1------------~1'-------------~1----------------~1-------o 20 .0 '0
I<JLOH[T[RS
Lb (dB) SHOR T TERM SIGNAL VARIABILITY
. Freq(MHz) 230 410 751 910 1846 4595 9190
9-29-66 at 15 M 7-12-66 at 15 M
50% 115.2 121. 9 125.7 134.3 13S.3 151. 4
610% -90% <3 <3 5.0 <3 4.0 6.4
7-12-66 at 7.3 M
50% 130.5 136.3 145.9 153. 7
610% -90% <3 <3 5.9 7.0
7-12-66 at 1 M
50% 132.0 133. 3 139.9 149.7
6100/0 -90% <3 4.0 6.S 4. 5
In the immediate .foreground, there is a low fence and a I-m high
corn field which extends for O. S km. There are 15-m high trees on
either side of the path at 0.4 km.
213
R3-BO-T7 SOUTH ROGGEN S2
FA TH VIEW FROM TRANSMITTER
Bearing from common receiver site to transmitter site is 660 40' 12" T.
214
120
! 30
.. -eo 140 .D .-'" @I
OJ
'" .-<II 150 • ~
...Ji
c. @ .-.. CIt .- 160 E .. '" '" .. I-
" .-om 170 I
C,
180
, 90
R3-80-T7
,0UT;1 R()GGFN ')2
I
--11--r-~~ ~-V~ I /1, .'" .... . ". ... , .... tl4~ ... ~ '*
, , . ...-"- V'\ /"-/' \1 I'\/,_ v " / :'-.. r, .\ 1'\ ." r- •. f--~--,L ... ,
/' \ -' \ y
/ '.' l \'
I
i"" ... D.",..'. I, #J ,j' '" rI' ............. • 'II , . 't' , ,
A\.r -, ,-r-. ... ~I""-~ "',,J \---""
-
--/
AN._.", ..
---. /" .".....,.
230 MHZ 9/28/&& ...... 410 MHZ
751 MHZ -.-.~ 910 MHZ 7/11/&& • • . . .• 18~' MHZ
,.
~-
.... . IJ.. • ..
/,,~,
...,. 'J, .... 11 ........
~595 MHZ 9190 MHZ
-----' r----.J
• •• . .. ~ , ... •••••• • •• ,
Vv' 1" ........ '\
....,..~~ ... ,.' -Free Space Loss (dB) 230 - 117.7 910 - 129.7 410 - 122.8 1846 - 135. 8 751 - 128.0 4595 - 142.9
9190 - 149.8 .1 1 1."",1 1,.-11 I\".J ..... • • ,.,..",,'" '100 • i'"" ,/
.." - .... ,../. .... ----...
~.,.,-..,. .-... , ,
=~'j~~Vt:~~~,V\, o 2 8 10 12 t&
215
'8
t o
R3-80-T7 RCVR. ELEV. 1995 M PATH LENGTH 78.86 km
XMTR. ELEV. 1442 M
Freq(MHz)
t 20
t .0
KILOMETERS
t &0
Lb (dB) SHORT TERM SIGNAL VARIABILITY
230 410 751 910 1846 4595 9190
9-28-66 at 15 M 7-11-66 at 15 M
50% 129.9 134.4 143.5 148.3 165.3 174. 1 188.6
L.\10% -90% <3 <3 <3 <3 <3 <3 <3
7-11-66 at 7.3 M
50% 150.3 160.3 174.6
L.\10%-90% <3 <3 <3
7-11-66 at 1 M
50% 152.8 166.6 173.9
L.\10%-90% <3 <3 <3
The path extends over dry, stubbled, wheat fields for
approximately 8 km.
216
188.4
<3
186.4
<3
9. Meteorological Information
This section of the report presents a comprehensive listing of
meteorological parameters for eac-h path that was obtained simultan
eously with the path loss measurements. Wet and dry bulb temperatures
were obtained by reading electrically operated psychrometers; atmos
pheric pressures were indicated on high-grade aneroid barometers;
percent relative humidity was calculated from meteorological data
obtained at the site. Cloud types were based upon the U.S. Weather
Bureau cloud code classification, and percent cloud cover, wind speed,
and wind direction were estimated.
Type Dry Wet Atmos. o/a Cloud 0/0 Wind
of Bulb Bulb Press. ReI. Type Cloud Speed Terminal
Site Temp C Temp C mb Humid. Cover & Dir.
R3-0.5-Tl Easley Road N
UHF Octobel 10, 1966
OPEN 20.0 7. 1 816.5 13 0 5 Rcvr
No data available Xmtr
SHF July 25, 1966
OPEN 28.9 17.2 803.2 33 Ll 30 5 S Rcvr
32.2 20.3 823.7 36 Ll, LZ 30 5 SE Xmtr
R3-0.5-T2 Easley Road S
UHF September 16, 1966
OPEN 14.4 8. 3 803.0 47 L2, HZ 40 0-30 W Rcvr
17.2 13.0 816.5 65 1.1 10 Calm Xmtr
SHF July 26, 1966
OPEN 28.9 15.0 803.9 24 Ll 5 3S Rcvr
31. 7 16.7 826.4 23 Ll 10 Calm Xmtr
217
Type of
Site
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry Bulb
TeTIlp C
Wet Bulb
TeTIlp C
A tTIlOS. Press.
TIlb
R3-3-Tl
SepteTIlber 20, 1966
21. 7 12.2 808.S
24.6 18.8 820.2
June 21, 1966
2S.0 13.6 801. 2
26.9 lS.0 824.9
R3-3-T2
SepteTIlber 20, 1966
21. 7 12.2 808.0
82S.9
June 21, 1966
2S.3 13.9 800.2
27.8 lS.7 830.S
% Cloud ReI. Type
HUTIlid.
Church Lake
3S Ll
60 Ll
30 M1
29 Ll, LS
o/a Wind Cloud Speed Cover & Dir.
S CalTIl
S O-S N
70 Ca1TIl
40 S NW
64th and North Quaker
3S Ll S CalTIl
Ll S 3E
30 Ml 70 CalTIl
29 L2, L3, H6 80 SESE
R3-3-T3-0 64th and Quaker E
SepteTIlber 20, 1966
22.2 12.8 808.0 36 Ll 5 CalTIl
825.9 Ll 10 5E
June 22, 1966
28.1 14.2 795. 1 23 L2 35 CalTIl
26.7 16. 1 825.5 35 L2 10 5E
218
TerTIlinal
Rcvr
XTIltr
Rcvr
XTIltr
Rcvr
XTIltr
Rcvr
XTIltr
Rcvr
XTIltr
Rcvr
XTIltr
Type of
Site
UHF
CONC
SHF
CONC
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry Bulb
Temp C
Wet Bulb
Temp C
A tmos. Press.
mb
0/0 Cloud ReI. Type
Humid.
% Wind Cloud Speed Cover & Dir.
R3-3-T3-C 64th and Quaker E
September 20, 1966
21. 7 12.2 808.0 3S Ll S Calm
82S.9 Ll 10 SE
June 22, 1966
24.7 13. 3 79S.8 29 Ll, M3 30 3 SE
23.9 lS.6 826.0 44 L2 l·S 10 NNE
R3-3-T4 64th and MacIntyre S
September 20, 1966
23.9 12.8 807.S 29 L1 S Calm
823.9 Ll, L2 20 1 E
June 22, 1966
28. 3 lS.0 793.4 26 L9 8S Calm
31. 1 lS.0 822.S 18 L2 70 lS-20 SW
R3-3-TS Loveland Street
September 16, 1966
12.8 8.9 803. S 63 Ll 10 Calm
16.3 14. 3 831. 0 82 Ll 10 2E
July 27, 1966
26.7 16. 1 802.6 36 Ll 10 2-3 S
29.4 18. 3 834.S 36 Ll 10 Calm
219
Terminal
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Type of
Site
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry Bulb
TeITlp C
Wet Bulb
TeITlp C
October 7, 1966
19.6 10.2
22.8 10.0
June 23, 1966
18.9 11. 7
21. 1 13. 3
October 7, 1966
18.2 11. 6
21. 1 9.4
June 23, 1966
22.S 12.2
23. 1 13.9
UHF SepteITlber 20, 1966
OPEN 23.9 12.8
SHF June 24, 1966
OPEN 26. 1 13.6
30.0 16. 1
A tITlOS. Press.
ITlb
R3-S-Tl
804.0
811. 0
797.8
816.0
R3-S-T2
804.6
813.4
792.4
818.2
R3-S-T3
807.S
82S.3
792.4
819.0
o/a Rel.
HUITlid.
Cloud Type
Pattridge East
32 L2, M6
19 Ll, H6
4S L2
44 L2
Pattridge E1
48 L1
21 HI, H6
32 L1, L9
38 L2, LS
0/0 Cloud Cover
SO
40
60
20
20
10
60
8S
Tucker Lake NE1
29 Ll S
Ll, L2 30
26
2S
220
Wind Speed & Dir.
CalITl
IS W
6 SE
TerITlinal
Rcvr
XITltr
Rcvr
10-lS S XITltr
CalITl Rcvr
10 XITltr
CalITl Rcvr
S-10 S XITltr
CalITl Rcvr
O-S W XITltr
Rcvr
XITltr
Type of
Site
Dry Bulb
Temp C
Wet Bulb
Temp C
Atmos. Press.
mb
R3-S-T4
UHF September 22, 1966
OPEN 23.9 12. 8 812.0
20.2 14.2 831. 4
SHF June 24, 1966
OPEN 23.1 14.2 793.4
2S.0 17.2 824.0
R3-S-TS
UHF September 22, 1966
OPEN 2S.6 lS.6 812.S
22.8 lS.4 832.0
SHF June 24, 1966
OPEN 20.3 13.9 793.8
22.2 lS.7 82S.8
R3-S-T6
UHF September 9, 1966
OPEN 24.4 11. 1 810.0
28.2 24.8 832.0
SHF July 28, 1966
OPEN 26.7 17.2 803.2
27.8 18.9 837.8
% Rel.
Humid.
Cloud Type
% Cloud Cover
74th and Mclntvre
29 Ll 2
S4
40 Ll O. S
48 Ll 1
Ralston Church
37 Ll 2
48 Ll 1
S2 Ll 1
S3
Mount Olivet
19 L2, H2 70
77 Ll 20
41 Ll,;LS IS
4S Ll, L2 10
221
Wind Speed Terminal
& Dir.
Calm Rcvr
Calm Xmtr
Calm Rcvr
Calm Xmtr
Calm Rcvr
Calm Xmtr
Calm Rcvr
Calm Xmtr
O-S W Rcvr
Calm Xmtr
6 S Rcvr
Calm Xmtr
Type
of Site
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry
Bulb Temp C
Wet Atmos. Bulb Press.
Temp C rnb
R3-5-T7
September 12, 1966
21. 7 12.2 804.0
22.0 16.0 822.9
July 28, 1966
23. 1 14.7 803.6
25.6 17.8 838.8
R3-10-Tl
September 22, 1966
25.0 13.9 811.7
28.2 16.8 812. 1
June 24. 1966
29.4 12.8 791.7
30.0 15. 0 805.0
R3-10-T2
September 22, 1966
25.0 13.9 81L 7
28.0 15.2 824.9
June 271 1966
26. 1 10. 0 802.9
27.2 15.7 828.2
% ReI.
Humid.
Cloud Type
% Wind Cloud Speed Cover & Dir.
Rolling Hills NE 1
35 L2 20 Calm
56 Ll 20 Calm
43 Ll 5 Calm
49 L1~ L2 10
Rocky Flats Clay Pit
31 Ll 40 CalIn
Terminal
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
34 Ll, L2 25 0-7 NNW Xmtr
14 Ll 1 Calm Rcvr
21 Ll 20 Calm Xmtr
Pole Corral
31 Ll 25 Calm Rcvr
27 Ll. L2 20 0-7 NNE Xmtr
10 Ll 20 Calm Rcvr
31 Ll. L2 10 5 SE Xmtr
222
o/a ReI.
Cloud Type
o/a Wind Type of
Site
Dry Bulb
Temp C
Wet Bulb
Temp C
A tmos. Press.
mb Humid. Cloud Speed Cover & Dir.
R3-l0-T3 Pole Corral El
UHF September 22, 1966
OPEN 2S.0 13.9 811.7 31 L1 S Calm
31. 0 16.8 829.3 2S L1 20 0-7 NNE
SHF June 27, 1966
OPEN 23.3 14.2 803.2 39 Ll, M4 1 Calm.
23.3 14.2 831.8 40 Ll, L2 2 Calm.
R3-10-T4 80th and Kipling N
UHF Septem.ber 22, 1966
OPEN 23. 3 14.4 812.3 40 Ll 2 Calm.
2S.2 IS.6 833.4 38 Ll 10 6 NE
SHF June 27, 1966
OPEN 28.9 13. 3 802.2 17 LI 10 0-7
30.6 lS.4 83S.4 20 Ll 20 10 NE
R3-10-TS 73rd and Field
UHF September IS, 1966
OPEN 8.9 8.9 803.0 100 L6 100 Calm.
11. 6 10.2 823.6 8S L2 100 Calm.
SHF June 28, 1966
OPEN 2S.6 13.3 804.3 26 LI IS Calm
26.7 14.9 836. S 29 Ll 10 Calm
223
Terminal
Rcvr
Xmtr
Rcvr
Xm.tr
Rcvr
Xm.tr
Rcvr
Xmtr
Rcvr
Xm.tr
Rcvr
Xmtr
Type of
Site
Dry Bulb
Temp C
Wet Bulb
Temp C
A trnos. Press.
mb
R3-10-T6
UHF September 15, 1966
OPEN 8.9 8.9 802.0
1l.8 10.4 829.7
SHF July 28, 1966
OPEN 27.2 18. 1 801. 9
31. 7 18.9 840.6
R3-20-T1
UHF September 22, 1966
OPEN 28.3 13.9 810.0
30.4 18.4 833.4
SHF June 30, 1966
OPEN 25.8 lS.0 799.S
21. 1 16.7 83S.4
R3-20-T2
UHF September 22, 1966
OPEN 27.2 14.4 811. 0
28.1 19. 0 833. 1
SHF June 30, 1966
OPEN 25.0 14.4 798.9
26. 1 18. 3 834.4
% ReI.
Humid.
Cloud Type
o/a Cloud Cover
Russell School S
100 L6 100
86 L2 100
44 L2 30
31 L1, L2 25
Marshall Road
21 L2, H2 70
33 L1, L2 35
34 Ll, L9, H2 90
66 L9 96
Cherryvale Road
26 L1, H2 80
44 L1, L2 30
34 L1, LS 80
39 L2 SO
224
Wind Speed & Dir.
Calm
Calm
5 S
Calm
Calm
0-5 N
Calm
Calm
Calm
O-S N
Calm
Calm
Terminal
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Type Dry of Bulb
Site Temp C
Wet Bulb
Temp C
A tmos. % Cloud 0/0 Pres s. ReI. Type Cloud
mb Humid. Cover
Wind Speed Terminal &: Dir.
R3-20-T3 Great Western Reservoir SW1
UHF September 23, 1966
OPEN 23.0 17.0 809.0 57 L1 15 Calm Rcvr
29.4 17.2 824.3 31 L1 20 0-5 E Xmtr
SHF June 30, 1966
OPEN 25.6 15.0 798.5 34 L2 75 Calm Rcvr
28.3 16.9 826.8 33 L2 80 5E Xmtr
R3-20-T4 Louisville SW1
UHF September 23, 1966
OPEN 23.0 17.0 809.0 57 L1 0 10 Rcvr
27.8 16.7 833.4 34 L1 20 0-5 NE Xmtr
SHF June 29, 1966
OPEN 29.2 12. 5 799.2 13 L1, H6, M1 70 Calm Rcvr
34.4 16.7 835.8 16 H6,L2 95 0-5 SSE Xmtr
R3-20-T 5 Louisville S 2
UHF September 23, 1966
OPEN 22.8 17. 3 810.3 60 L1 15 Calm Rcvr
29.4 17. 2 824.3 31 L1 20 0-5 NE Xmtr
SHF June 29, 1966
OPEN 28.9 12.5 800.2 14 L1, H6, M2 90 Calm Rcvr
30.6 15.0 837.3 18 H6, L2 75 5E Xmtr
225
Type Dry Wet Bulb
Temp C of Bulb
Site Temp C
UHF September 23,
OPEN 22.8 17. 3
27.2 15.6
SHF June 29, 1966
OPEN 26. 1 14.4
29.4 16.7
UHF September 23,
OPEN 19. 8 14. 5
23.3 13.9
SHF June 29, 1966
OPEN 23.3 12. 2
24.4 14.4
UHF September 23,
CONC 22.8 17.2
23. 3 13.9
SHF June 29, 1966
CONC 26.7 13.3
28. 1 15. 8
A tmos. Pre~s.
mb
R3-20-T6
1966
810. 3
837.5
800.5
839.8
o/a Cloud ReI. Type
Humid.
% Cloud Cover
Stearns Lake N 1
60 LI 20
31 Ll 20
30 Ml 100
29 H6, L2 85
Wind Speed & Dir.
Calm
0-5 N
Calm
0-5 E
R3-20-T8-0 124th and Carbon Road
1966
811. 0 59
836. 1 37 Ll 20 0-5 N
801. 9 29 Ll, H7 90 Calm
839.0 35 H6 70 Calm
R3-20-T8-C 124th and Carbon Road
1966
810.3 60 Ll 20 Calm
836. 1 37 Ll 20 0-5 N
801. 9 23 Ll, H7 90 Calm
838.8 29 H6 75 5E
226
Terminal
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Type Dry of Bulb
Site TeITlp C
Wet Bulb
TeITlp C
A tITlOS. Pres s.
ITlb
R3-20-T9
UHF September 23, 1966
OPEN 19. 8 14. 5 811.0
2000 12. 8 840.5
SHF June 28, 1966
OPEN 29.7 13. 1 803.2
33.9 16.9 844.2
% Cloud ReI. Type
HUITlid.
0/0 Cloud Cover
Wind Speed & Dir.
120th and Lowell Boulevard N
59 Ll 15 Calm
46 L1 5 0-5 N
14 M4, Ll 40 0-5 E
18 L1 25 5 WSW
R3-20-TI0 100th and Pecos
UHF September 23, 1966
OPEN 18.2 13.4 811. 1 61 Ll 1 Calm
18.3 12. 2 832.4 51 5N
SHF June 2.8, 1966
OPEN 30.8 13. 1 803.9 12 Ll 25 Cal:m
32.8 15.6 836.8 16 L1 20 Calm
R3-20-T11 Thornton Sl
UHF September 15, 1966
OPEN 8.9 8.9 803.0 100 L6 100 Calm
12. 5 11. 5 834.7 90 L2 100 Calm
SHF July 29, 1966
OPEN 26.7 18. 3 805.6 47 Ll 15 7 S
30.0 20.0 847.4 41 L1 15 Calm
227
TerITlinal
Rcvr
Xmtr
Rcvr
X:mtr
Rcvr
XlTItr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
o/u ReI.
Cloud Type
% Type of
Site
Dry Bulb
Temp C
Wet Bulb
Temp C
Atmos. Press.
mb Humid. Cloud Cover
R3-20-T12 Western Hills SEI
UHF September IS, 1966
OPEN 9.4 8.9 804.0 94 L6 100
12.6 10.8 838. 1 82 L2 100
SHF July 29, 1966
OPEN 19.4 16. 1 803.2 73 L1 70
21. 7 18.3 850.5 73 L1, L2 80
R3-20-TI3 Riverside Cemetery
UHF September IS, 1966
OPEN 8.9 8.9 804.5 100 L6 100
10.4 9.8 838.8 93 L2 100
SHF July 29. 1966
OPEN 22.8 17.2 805.9 60 L1 15
25.3 19.4 851. 0 59 L1 35
R3-20-T14 Mar s ton Lake NW
UHF September 12, 1966
OPEN 23.3 14.4 804.0 40 Ll, H2 50
24.4 16.0 822.2 44 L1, L2 50
SHF August 5, 1966
OPEN 20.6 14.4 803.9 54 Ll 5
24.4 15. 8 834.9 43 L1 10
228
Wind Speed & Dir.
Calm
Calm
5 SE
Calm
Calm
Calm
5 SE
Calm
0-5 W
2E
5S
Calm
Terminal
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Type of
Site
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry Wet Bulb Bulb
Temp C Temp C
Atmos. Press'.
mb
R3-30-Tl
September 26, 1966
19.4 16.0 802.5
21. 7 15. 0 833.4
July 22, 1966
24.2 17.7 806.3
25.6 18.9 850.0
R3-30-T2
October 6, 1966
18.0 12.0 807.1
22.8 11. 1 835. 1
August 1, 1966
20.0 17.2 843.2
26.7 18.2 850.3
0/0 ReI.
Humid.
Cloud Type
0/0 Cloud Cover
Wind Speed & Dir.
Leggett Reservoir NE2
73 L2,H2 30 Calm
51 Ll, L2, H2 40 5-10 N
55 L2, L9 85 Calm
55 L1, L2 65 5 NE
East Lake Reservoir N3
52 L1 15 Calm
24 L1 5 3E
77 L5 100 SSW
Terminal
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
46 L1, L2 96 5-10 NE Xmtr
R3-30-T3-0 Webster Lake
October 6, 1966
20.2 12.0 805.8 40 L1 40 Calm Rcvr
26. 1 12.8 830.3 21 L2 10 1 E Xmtr
August 1, 1966
23.9 16.7 842.5 50 L1 90 3S Rcvr
25.0 18.6 847.0 56 L1 60 5 NE Xmtr
229
Type of
Site
UHF
CONC
SHF
CONC
UHF
OPEN
SHF
OPEN
UHF
CONC
SHF
CONC
Dry Bulb
Temp C
Wet Bulb
Temp C
Atmos. Press.
mb
o/a Cloud ReI. Type
Humid.
o/a Cloud Cover
R3-30-T3-C Webster Lake
October 6, 1966
20.2 12.0 805.8 40 Ll 40
23. 3 12.2 830.3 28 L1 5
August 1, 1966
22.2 16. 1 843.2 55 Ll 90
26. 1 18.9 847.5 52 Ll 20
R3-40-TI-0 Longmont Sl
September 26, 1966
17.6 14.2 801. 5 71 L2, H2' 70
22.8 15.6 840.5 49 Ll, L2 40
July 18, 1966
28.9 19.7 839.2 44 Ll 20
30.6 19.4 855.8 36 L2 30
R3-40-TI-C Longmont Sl
September 26, 1966
17.6 14.2 801. 5 71 L2, H2 70
20.6 15.0 839.8 57 Ll, L2, H2 40
July 18, 1966
30.6 17.2 838.8 27 Ll, L9 40
31. 7 20.0 855.4 35 L2 35
230
Wind Speed Terminal & Dir.
Calm Rcvr
1 E Xmtr
3 S Rcvr
Calm Xmtr
Calm Rcvr
0-5 SE Xmtr
Calm Rcvr
Calm Xmtr
Calm Rcvr
0-5 SE Xmtr
6W Rcvr
5 SE Xmtr
Type Dry of Bulb
Site Temp C
UHF October
OPEN 16. 5
18.9
Wet Bulb
Temp C
5, 1955
12.4
10.0
SHF August 15, 1966
OPEN 30.3 13. 9
32.2 21. 1
Atmos. Press.
mb
R3-40-T2
808.0
846.9
838.8
855. 1
o/a Cloud ReI. Type
Humid.
Longmont SE 3
65 Ll
33 L.l
15 Ll
39 L2
o/a Wind Cloud Speed Terminal Cover & Dir.
20 Calm Rcvr
5 5E Xmtr
30 Calm Rcvr
10 Calm Xmtr
R3-40-T3-0 Lowry Bombing Range W
UHF September 13, 1966
OPEN 18.3 11. 7 805.5 48 L2, M6 80 Calm Rcvr
23.4 16.2 818.8 50 Ll, L2 40 Calm Xmtr
SHF August 3, 1966
OPEN 20.3 16. 1 837.8 67 L9 100 5W Rcvr
27.8 17. 8 828.2 39 Ll, L2 85 Xmtr
R3-40-T3-C Lowry Bombing Range W
UHF September 13, 1966
CONC 18.3 11. 7 805.5 48 L2,M6 80 Calm Rcvr
21. 2 17.4 818.8 71 Ll 15 Calm Xmtr
SHF August 3, 1966
CONC 26.7 16.7 837.8 38 Ll, L9, M2 70 2W Rcvr
28. 1 18. 3 828.5 41 Ll 30 Calm Xmtr
231
Type of
Site
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry Wet Bulb Bulb
Temp C Temp C
October 4, 1966
6.0 5.4
9.4 5.6
July 1, 1966
23.6 15.6
25.0 17. 5
October 4, 1966
10.5 8.2
12.2 6.7
July 6, 1966
29.4 15.0
29.4 19.4
A tmos. Press.
mb
R3-50-T1
807.7
832.4
798.5
832.5
R3-50-T2
807.5
840.8
802.9
845.6
R3-50-T3
September 26, 1966
18.0 14.0 802.0
23.9 15A 6 837.1
July 1, 1966
23.9 15.8 798.5
32.2 20.0 845.4
Ufo Cloud Rel. Type
Humid.
Dowe Flats
92 Ll
59
46 Ll
50 L2, H6
0/0 Wind Cloud Speed Cover & Dir.
Terminal
1 0-5 NW Rcvr
3SW Xmtr
20 Calm Rcvr
50 Calm Xmtr
Highland No. 2 Reservoir
76 L1 5 Calm Rcvr
47 3S Xmtr
22 Ll 15 5S Rcvr
41 Ll 10 0-5 E Xmtr
Mead SWI
67 L2,M2 90 Calm Rcvr
44 L2, LI 75 0-10 NNE Xmtr
46 Ll, L9 90 Calm Rcvr
34 L2 50 0-5 E Xmtr
232
Type of
Site
Dry Bulb
Temp C
Wet Bulb
Temp C
Atmos. Press.
mb
o/a Hel.
Humid.
Cloud Type
R3-50-T4-0 Mead NEl
UHF September 26, 1966
OPEN 16.0 13.2 802.0 75 L2, M9
20.6 14.4 837.8 53 L1, L2
SHF July 6, 1966
OPEN 29.4 14.2 801. 2 19 L1
32.2 18.9 848.8 29 L2
R3-50-T4-C Mead NE1
UHF September 26, 1966
CONC 16.0 13. 2 802.0 75 L2,M9
20.0 15.6 837.8 65 L1, L2
SHF July 6, 1966
CONC 29.4 15.6 801. 6 25 L1
30.0 20.6 849.8 44 L2
R3-S0-TS Mead S4E5
UHF October 5, 1966
OPEN 16.4 12.2 808.4 64 L1
14.4 7.2 851. 3 37
SHF July 8, 1966
OPEN 31. 1 14.2 799.2 15
o/a Cloud Cover
80
75
60
10
80
75
15
1
20
60
31. 1 16.7 851. 2 24 H6, L2 75
233
Wind Speed Terminal & Dir.
Calm Rcvr
5 NE Xmtr
Calm Rcvr
0-5 N Xmtr
Calm Rcvr
5 NE Xmtr
Calm Rcvr
0-5 N Xmtr
Calm Rcvr
2 NE Xmtr
5N Rcvr
0-5 E Xmtr
Type of
Site
UHF
OPEN
SHF
OPEN
UHF·
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry Wet Bulb Bulb
Temp C Temp C
A tmos. Press.
mb
R3-50-T 7
September 28, 1966
23.0 14.2 802.0
30.6 15. 0 835.4
July 8, 1966
27.8 16. 1 799.5
36. 1 17.2 844.9
R3-50-T8
October 6, 1966
16.4 11.8 807.4
17.2 9.4 840.5
July 8, 1966
27.8 15.0 761. 9
33. 3 16.7 843.1
R3-50-T9
September 13, 1966
20.0 12. 2 803. 5
22.0 13.8 814.4
August 4, 1966
21. 9 15.6 802.2
22.8 16.2 824.5
o/a ReI.
Humid.
Cloud Type
o/G Cloud Cover
Fort Lupton E 3
41 L1 60
19 HI, H6 30
32 L9 99
14 H6,L9 75
Barr Lake E4N3
61 Ll 5
38
28 L9 100
18 L2, L5 80
Wind Speed & Dir.
Calm
5E
Calm
0-5 E
Calm
3E
5W
0-5 SW
Lowry Bombing Range N
43 Ll 20 Calm
43 L2 60 2 NNW
54 L1, L9 70 Calm
53 L1 20 25 NNW
234
Terminal
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Rcvr
Xmtr
Type of
Site
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
UHF
OPEN
SHF
OPEN
Dry Bulb
Temp C
Wet Bulb
Temp C
A tmos. Press.
mb
0/0 ReI.
Humid.
Cloud Type
% Cloud Cover
Wind Speed Terminal & Dir.
R3-50-TI0 Lowry Bombing Range S
September 13, 1966
18.3 11. 7 803.5 48 Ll 20 Calm Rcvr
20.6 12.6 808.0 42 Ll, L2 65 Calm Xmtr
August 4, 1966
22.2 14.4 802.6 45 L9 80 3W Rcvr
24.4 15.8 817.2 43 Ll, L2 60 25 NNW Xmtr
R3-50-Tll Parker Sl
September 12, 1966
21. 1 12. 8 803.5 41 Ll, L9 60 Calm Rcvr
24.4 14.2 813.4 35 Ll, L2 65 2N Xmtr
August 3, 1966
23.9 16.7 804.6 51 Ll, M1 50 Calm Rcvr
24.4 18. 3 826.4 58 Ll 40 5N Xmtr
R3-55-TI Ish Reservoir NE2
October 4, 1966
14.2 9. 8 807.4 60 Ll 15 Calm Rcvr
16.7 7. 8 844.6 29 2 S Xmtr
July 15, 1966
26.7 17.5 806.0 43 Ll 20 Calm Rcvr
24.4 20.0 853.5 68 L2 5 Calm Xmtr
235
Type of
Site
Dry Bulb
Temp C
Wet Bulb
Temp C
UHF October 5, 1966
OPEN 11.8 8. 1
6.7 3.9
SHF July 13, 1966
OPEN 27.2 15.0
30.0 20.0
UHF October 5, 1966
CONC 11.8 8.6
11.7 6.7
SHF July 13, 1966
CONC 28.9 14. 2
S 32.2 21. 1
Atmos. Press.
mb
% ReI.
Humid.
Cloud Type
% Cloud Cover
R3-60-T2-0 Milliken E2
808. 1 64 Ll 5
822.2 67
801. 6 29 L9, Ml 80
858.4 41 L2 10
R3-60-T2-C Milliken E2
808.1 68 Ll 5
822.2 51
801. 2 20 L9 90
857.6 38
R3-80-Tl Loveland N4
UHF September 29, 1966
OPEN 25.6 15.6 797.0 37 H2 20
29.4 14.4 827.0 19 H6 1
SHF July 12, 1966
OPEN 25.6 14.7 803.2 32 L1, L5, L9 90
29.4 17.2 846.5 31 Ll, L2 50
236
Wind Speed Terminal & Dir.
Calm Rcvr
1 N Xmtr
5-10 W Rcvr
Xmtr
Calm Rcvr
3 NE Xmtr
Calm Rcvr
Xmtr
0-20 Rcvr
5 SE Xmtr
Calm Rcvr
0-5 E Xmtr
/-
Type Dry of Bulb
Site Temp C
Wet Bulb
Temp C
Atmos. Press.
mb
% Cloud ReI. Type
Humid.
% Cloud Cover
Wind Speed Terminal & Dir.
R3-80-T2-0 Fossil Creek Reservoir
UHF September 29, 1966
OPEN 19.0 15.0 799.0 68 H2 20 0-5 Rcvr
21. 7 13.9 839.2 44 H6 15 2 SE Xmtr
SHF July 13, 1966
OPEN 25.6 15. 8 801. 6 38 Ll 15 Calm Rcvr
22.2 17.2 854.2 63 H2 10 Xmtr
R3-80-T2-C Fos sil Creek Reservoir
UHF September 29, 1966
CONC 22.5 16. 5 799.0 57 H2 20 0-5 Rcvr
21. 7 13.9 839.2 44 H6 15 2 SE Xmtr
SHF July 13, 1966
CONC 26.7 15.6 801. 6 33 Ll 25 Calm Rcvr
26.7 19.4 854.2 52 H2 10 Xmtr
R3-80-T3 Windsor SE3
UHF September 29, 1966
OPEN 23.0 17.0 797.0 57 HZ 20 0-10 W Rcvr
26.7 13. 3 831.4 25 H6 15 5 SE Xmtr
SHF July 12, 1966
OPEN 25. 3 15.6 803.6 39 L9, Ml 60 Calm Rcvr
29.4 18. 3 850.5 36 LZ 10 5-10 S Xmtr
237
Dry Wet Bulb Bulb
o/a Rel.
Cloud Type
o/a Terminal
Type of
Site Temp C Temp C
Atmos. Pres s.
mb Humid. Cloud Cover
Wind Speed & Dir.
R3-80-T5 Lower Latham Reservoir E1
UHF September 28, 1966
OPEN 22.2 14.0 801. 8 43 Ll 70 Calm Rcvr
25.0 15.0 842.2 36 HI, H6 40 3NW Xmtr
SHF July 12, 1966
OPEN 29.4 15.8 802.6 26 L1, L9 60 5S Rcvr
36. 1 19.4 854.4 21 L2 50 0-5 NNE Xmtr
R3-80-T6 Erickson Reservoir NE2
UHF September 29, 1966
OPEN 19.0 14.0 799.0 60 H2 20 Calm Rcvr
10. 0 7.2 840.5 70 H6 5 1 N Xmtr
SHF July 11, 1966
OPEN 23. 1 15.3 800.2 56 HI, Ll 20 Calm Rcvr
21. 1 16. 1 857.0 66 Ll 50 0-5 E Xmtr
R3-80-T7 South Roggen S2
UHF September 28, 1966
OPEN 20.0 12.0 801. 6 41 M1 15 0-10 W Rcvr
25.6 13. 3 842.9 25 H1,M6 30 5 NW Xmtr
SHF July 11, 1966
OPEN 29.4 15.6 802.2 41 L1 30 Calm Rcvr
29.4 17.2 854.5 51 HI, L2 10 0-5 NE Xmtr
238 GPO 830-548