Type 2432.4m Offset Tx/Rx Antenna System

Instruction and Assembly Manual

Printed in U.S.A. 12/98 8000450-02

Premier Business Park, Crofthead Road,Off Philips Road, Whitebirk Industrial EstateBlackburn, Lancashire England BB1 5UE(0254) 680444 n Fax (0254) 672299

1315 Industrial Park Drive, P.O. Box 1416Smithfield, N.C. 27577 U.S.A.Fax (919) 989-2200Phone (919) 989-2205 (Customer Service)

(UK) Limited

EXCEPTION TO CHART ABOVE:B\, x 5Z\x Round Head Square Neck Bolt (Item #2), securing antenna to mount.Torque to 35 Ft-lbs (47 N-m).Z\x x 1Z\x Hex Head Bolt, securing antenna halves. Torque to 35 Ft-lbs (47 N-m).

BOLT TORQUEGRADE 5 GRADE 2

B\zn IN. C\, IN. Z\x IN. B\, IN. C\v IN. M\, IN. 10 Z\v IN. B\zn IN. C\, IN. Z\x IN. B\, IN. C\v IN. M\, IN.18 31 75 150 250 350 32 6 11 20 43 92 124 175

FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS24 42 102 203 339 474 3.6 8 15 27 58 125 168 237

N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m

GRADE 5

APPLY 18 FT-LBS (24 N-m)OF TORQUE TO B\zn BOLT

EXAMPLES: GRADE 2

APPLY 11 FT-LBS (15 N-m)OF TORQUE TO B\zn BOLT

SITE SELECTIONThe first and most important consideration whenchoosing a prospective antenna site is whether or not the area can provide an acceptable look angle atthe satellites. A site with a clear, unobstructed view is preferred. Also consider obstruction that may occurin the future such as the growth of trees.Your antennasite must be selected in advance so that you will beable to receive the strongest signal available. To avoidobstructions, etc., conduct an on-site survey with aportable antenna.

As with any other type of construction, a local buildingpermit may be required before installing an antenna. Itis the property owners responsibility to obtain any andall permits.

Before any digging is done, information regarding thepossibility of underground telephone lines, powerlines, storm drains, etc., in the excavation area shouldbe obtained from the appropriate agency.

Because soils vary widely in composition and loadcapacity, consult a local professional engineer todetermine the appropriate foundation design andinstallation procedure. A suggested foundation designwith conditions noted is included in this manual forreference purposes only (see page 4). To assist in thefoundation design, refer to Outline Drawing in theAppendix A on page 16.

ASSEMBLY TOOLS REQUIRED

nn Grounding Rod Clamp & Grounding Block: As required byNational Electric Code or local codes.

nn Ground Wire: As required by National Electric Code or localcodes (length required).

nn Coaxial Cable: Size and length required.

nn Concrete: See Ground Pole section for quantity.

nn #3 Rebar: See Ground Pole section for quantity.Deformed steel per ASTM A615, Grade 40 or 60.

PREINSTALLATION CHECKLIST

1 - Compass1 - Clinometer1 - 9 Magnetic Bubble Level1 - Torque Wrench

(Capacity 4 Ft-lbs - 175 Ft-lbs)

1 - ZB\zn Deep Socket (Z\x Drive)1 - 1 B\zn Deep Socket (Z\x Drive)1 - C\v Socket (Z\x Drive)1 - Ratchet Wrench (Z\x Drive)1 - M\zn Nutdriver

1 - M\zn Box/Open End Wrench1 - 1Z\, Open End Wrench1 - 12 Crescent Wrench (Adjustable)1 - M\zn Socket (For Torque Wrench)

GROUND POLE INSTALLATION - 6B\, O.D.

EXPOSURE C EXPOSURE CWIND CONC CONC

ANT VEL DIM VOL DIM VOL GROUNDSIZE (MPH) d (CU YD) d (CU YD) POLE

2.4m 100 44 1.7 37 1.6 ASMC

OFFSET 125 53 2.4 45.25 2.6 B

POLE SPECIFICATIONS:

Ground Pole A = 6.62 OD SCH 40 (6.06 I.D.) SteelGround Pole B = 6.62 OD SCH 80 (5.76 I.D.) Steel

NOTE:

1. Poles A and B are not supplied (purchased locally to ASTM A501) and must be field drilled B\, Dia. for #3 rebar, drilled .218 for Z\v-20 self tapping grounding screw and galvanized or painted for protection.

2. Pole and foundation design based on the following criteria:a. Uniform building code Exposure C and 1.5 stability factor.b. Vertical soil pressure of 2000 pounds per square foot.c. Lateral soil pressure of 300 pounds per square foot.d. Concrete compressive strength of 2500 pounds per square inch in 28 days.

CAUTION: The foundation design shown does not represent an appropriate design for any specific locality, since soil conditions varyand may not meet design criteria given in Note 2.You should consult a local professional engineer to determine your soil conditions andappropriate foundation.

108"63.5"

69.5"

d

50"

1" to 2"SLOPE FORWATER RUN-OFF

GRADE

#3 REBAR X DIA. OF PIER,INSERT THRU HOLE INTUBE & CENTER BELOWFROST LINE

MIN.DIA.

6B\," O.D.

108"63.5"

d

66"

1" to 2"SLOPE FORWATER RUN-OFF

GRADE

#3 REBAR x 18"INSERT THRU HOLE INTUBE & CENTER

BELOWFROST LINE

MIN.DIA.

6B\," O.D.

(SEE NOTE)2"

APPROX.

2"

(6) #3 x 24" MIN.AT 60 APART(SEE NOTE)

ANTCL

NOTE:66" may beincreased,

concrete andlength of rebarwill increaseaccordingly.

DEEP FROST LINE FOUNDATIONSPIER FOUNDATIONS

GROUND POLEMUST BELEVEL IN ALLDIRECTIONS

BUBBLELEVEL

ASSEMBLY

FIGURE - 1.0

TOP

BOTTOM

REFLECTOR ASSEMBLY1 - Place reflector halves on a flat surface, facedown. (Ref. Figure 1.0). Install Z\x x 1Z\x hex bolts withflat washer into the two outer bolt holes at reflectorrim. Secure with Z\x flat washer, lock washer and hexnut as shown in Figure 1.1. Repeat on opposite sideof reflector. Leave loose.2 - Install remaining seam bolts, working toward centerof reflector as noted above. Repeat on opposite sideof reflector. Leave finger tight. (Ref. Figure 1.2)NOTE: All seam bolts to be finger tight only.MOUNT AND BACKFRAME ASSEMBLY3 - Place yoke cap assembly onto ground pole, andloosen two Z\x carriage bolts (16) securing R.H. channelto yoke cap (non-welded). Reference Figure 1.3.4 - Install backframe (1) onto yoke cap assembly andsecure with M\, x 6 hex bolt, lock washer and hex nut(24, 15 & 14). Do not tighten. Remove two Z\x boltsfrom Trunnion, swing backframe down and secureelevation screw and trunnion (25 & 26) to AZ/EL capwith Z\x x 1 Z\v hex bolt and lock washer (17 & 3).Leave loose. Reference Figure 1.3.5 - Loosen M\, elevation nuts (14) on elevation screw(25) and run up to place backframe in birdbath position(see Figures 1.3 & 1.4).

FIGURE - 1.1

45

4544

3

4

Z\x FLAT WASHER

Z\x LOCK WASHER

Z\x FLAT WASHERZ\x x 1-1Z\x HEX BOLT(6 PLCS -BOTH SIDES)

Z\x HEX NUT

FIGURE - 1.2 FIGURE - 1.3

GROUNDPOLE

BACKFRAME

YOKECAPASSEMBLY

173

241514

1

25 26173

26

14

16

1414

FIGURE 1.5

.025 MAX MISMATCH

HORIZONTALSEAM

PARABOLIC

PREFERREDSEAM

MATCH

ACCEPTABLESEAM

MATCH

2ND CREDIT CARDOR FEELER GAGE

.028 THICKNESSWON'T GO

CREDITCARD

CREDITCARD

CREDITCARD

HORIZONTALSEAM

HORIZONTALSEAM

ANTENNA INSTALLATION6 - Insert four B\, x 5Z\x round head square neck bolts(2) into reflector assembly (5) and affix on to back-frame. Reflector section marked TOP must be locatedat the top end of backframe. Make sure round headsquare neck bolts are seated correctly before securingreflector to backframe. Secure reflector to backframewith B\, lock washers and hex nuts. Leave thesebolts loose. Reference Figure 1.4.SEAM ALIGNMENT7 - Lower reflector to vertical position by runningdown two elevation nuts (14).8 - Check the horizontal seam match as shown inFigure 1.5. If alignment is required, begin at the outerrim by pushing or pulling on the bottom reflector rim,while another tightens their seam bolts at this loca-tion. Continue this process, working toward the cen-ter, and alternating from one side to the other.9 - After all seam bolts are tightened, torque bolts,using the same sequences as above, to 35 ft-lbs. Nowtighten and torque (4) reflector mounting bolts to 35 ft-lbs.NOTE: Certain models reuqire additional alignmentinstructions. Refer to supplement for detailed instruc-tions.FEED SUPPORT TUBE INSTALLATION10 - Install Z\v x 1 Z\x hex bolt with flat wahser (46 &7) into bottom hole in reflector and secure with Z\v flatwasher and hex nut (7 & 6). Reference Figure 1.611 - Install feed support tube (10) onto backframeand secure with two Z\x x 5Z\x hex bolts, four externaltooth lock washers and hex nuts (12, 11 & 4).Reference Figure 1.7.IMPORTANT: Z\v x 1Z\x hex gage bolt (Item 46) inbottom of reflector fits into hole on top of supporttube end (Item 10). Reference Figure 1.7.

FIGURE - 1.4

2

5

41

42

(4 PLACES)

"TOP"

FIGURE - 1.6

15

7

6

NOTE: Z\x external tooth washers (11) must beassembled on bolts, with one under head of boltsand one under hex nuts (4), refer to Figure 1.7.Leave these bolts loose.12 - Install left and right side struts onto reflector asshown in Figure 1.8.Attach long formed end of side struts (27) toreflector rim by inserting Z\v x C\v hex head bolt (28)through inside of reflector rim and secure snug, butfree to pivot with Z\v lock washer and hex nut (6 & 8).Attach short formed end of side struts (27) to feedsupport tube with Z\v x C\v hex bolt, lock wahesr andhex nut (28, 8 & 6). Tighten and torque hardwaresecuring side struts to feed support tube only to 6 Ft-lbs (8 N-m).13 - Without using excessive pressure, lift feedsupport tube vertically just enough to relieve load offside struts and bottom rim gage bolt (Item 46). Whileanother person tightens and torques Z\x hex headbolts (*) securing feed supprot tube to backframe to35 Ft-lbs (47 N-m). Tighten and torque Z\v hex headbolts (**) securing side struts to reflector to 4 Ft-lbs(5.4 N-m). Reference Figure 1.9.14 - To install ODU or Feeds, see instructionssupplied with these kits.

FIGURE - 1.7

~

~

HOLEFEEDSUPPORTTUBE

67

746

10

112

11

114

10

FIGURE - 1.8 FIGURE - 1.9

28

27

8

6

28

10

**

*

86

SHORT FORMED ENDOF SIDE STRUTSATTACHES TO ORUSUPPORT TUBE.

LONG FORMED ENDOF SIDE STRUTSATTACHES TO ANTENNA.

FEED SUPPORTTUBE

LIFT UP ON ODUSUPPORT TUBE HERE,WHILE ANOTHER PERSONTIGHTENS AND TORQUESHARDWARE (* & **).

*TORQUE TO 35 FT-LBS (47 Nm)**TORQUE TO 4 FT-LBS (5.4 Nm)

FIGURE - 2.0

GROUND POLE

GROUND LUG

GROUND WIRE (Typical #10 AWG Copper, #8 Aluminum)Refer to NEC Section 810 and local electric

codes for the specific area requirements.

1/4" - 20 UNC x 5/8" HEX HEAD,TYPE "D" POINT, SELF TAPPING SCREW

Apply sealant here, after assembly,to improve corrosion resistance

DRILL HOLE THRU ONE WALL WITH7/32" DIA. TWIST DRILL

1/4" EXTERNAL TOOTHLOCK WASHER

REF.

10" - 1

2"

GROUNDINGTYPICAL ELECTRICAL GROUNDING FOR ANTENNA GROUND POLE

NOTE: ALL INSTALLATIONS TO CONFORM TO THE LATEST ISSUE OF THE NATIONAL ELECTRIC CODE

*COAXIAL CABLEFROM LNB

*COAXIAL CABLETO RECEIVER

*GROUND BLOCKNEC SECTION810-20

*GROUNDWIRENEC SECTION810-20

*ITEMS NOT SUPPLIED

NOTE: All installations to conform to latest issue ofNational Electrical Code.

Ground antenna mount assembly and feed cables inaccordance with current National Electrical Code andlocal electrical codes. Figure 2.0 and 2.1 illustratestypical grounding methods for the ground pole andfeed cables.

Clamps that provide a solid connection betweenground wire and ground source should be used.

Tighten and torque all hardware.

FIGURE - 2.1

NOTE:ALL INSTALLATIONS TO

CONFORM TO THE LATESTISSUE OF THE NATIONAL

ELECTRIC CODE

ANTENNA ALIGNMENT PROCEDUREAlignment with the satellite is obtained by setting polar-ization, elevation and azimuth. Charts 1, 2 & 3 are todetermine the values for your earth station antenna site.L is the difference between the earth station antennasite longitude and the satellite longitude. Use L andyour earth station latitude to obtain polarization, eleva-tion or azimuth setting.

POLARIZATION OF FEEDLoosen feed horn clamp bolts and turn feed clockwiseor counterclockwise, depending on being east or westof the satellite as shown on Chart 1. Align marks on thehorn clamp and appropriate mark on the horn scale.Polarization chart assumes antenna system polariza-tion is Tx vertical and satellite vertical Pol is perpendic-ular to plane of geostationary arc. For horizontal Tx ofantenna, feed must be rotated 90 from values shown.(Starting point for polarization adjustment is 0, asshown in Figure 3.0).

ELEVATION ALIGNMENTUse Chart 2 and determine your elevation setting.Using a clinometer, adjust the elevation by turning theelevation screw adjusting nuts until the desired eleva-tion is obtained. Reference 3.1. NOTE: Degree valuesshown on the clinometer are mechanical; that iswhen the reflector face is vertical, mechanicalelevation is 90 or axis is 0, while the beam elevation(signal) axis is 22.62. Therefore, as the reflector istilted, remember to compensate for the 22.62 offsetangle to get the correct beam elevation. (SeeAppendix A, Outline Drawing, Page 17). This is anapproximate setting. Optimum setting will beachieved during the fine tuning.

AZIMUTHUse Chart 3 and determine your azimuth setting.Values in chart must be adjusted for magnetic devi-ation for your location for correct compass reading.Equally tighten the six azimuth locking bolts until snug.This will allow the reflector to rotate with slightresistance (Ref. Fig. 3.2.)Rotate reflector and mount, pointing to the compassreading for your location (Ref. Fig. 3.3.)Slowly sweep the reflector in azimuth until signal isfound. If desired signal is not found, increase ordecrease elevation setting and repeat the azimuthsweep. Tighten locking bolts.

+40-40 0

HORN SCALE

ALIGNMENT MARKCLAMP BOLT

FIGURE - 3.0

PIVOTBOLT(LOOSEN)

ELEVATIONBOLT(LOOSEN)

ELEVATIONADJUSTINGSCREW

TRUNNION

CLINOMETER

RIB

ELEVATIONHEX NUTS

FIGURE - 3.1

AZIMUTH

171

ROTATE ANTENNA ONGROUND TUBE

EXAMPLE:AZIMUTH HEADING TO 171(AZIMUTH MAGNETIC DEVIATION)

COMPASS

SSW

WNWN

NEE

SE170 180

190

FIGURE - 3.3

FINE TUNINGProgressively tighten and torque azimuth locking boltsto 85-95 Ft-lbs. The four top plate locking bolts arefactory torqued to 10-11 Ft-lbs., maintain this torqueuntil after azimuth is fine tuned.

Use a signal strength measuring device for final adjust-ments to obtain maximum antenna performance.Alternate between elevation and azimuth fine tuning toreach maximum signal strength, until no improvementcan be detected. Gradually tighten (Z\, turn incrementsmax.) top plate bolts in sequence 1, 3, 4 and 2 to 75 Ft-lbs.,refer to Figure 3.2. Observe for maximum signalstrength as elevation screws locking nuts are tighten.

Polarization tune may be checked by carefully andslowly rotating feed assembly in clamp. When maximumsignal strength is found, gradually tighten clamp bolts(Fig. 3.0). If a signal on the opposite polarity is available,this signal should be minimized.

Tighten and torque all hardware. Refer to Torque Charton Page 3.

1

2

34

TOP PLATELOCKING BOLT(4 PLCS)

AZIMUTHADJUSTINGSCREW

AZIMUTHLOCKINGBOLTS (6 PLCS)

TOP PLATEPIVOT BOLT

TURN NUTSCLOCKWISE ORCOUNTERCLOCKWISEFOR AZIMUTHFINE TUNING

FIGURE - 3.2

0 10 20 30 40 50 60 70 80

0

20

40

60

80

10

30

50

70

90

ANTENNA

FEED

FEED

ANTENNA

+ POLARIZATION WHEN EARTH STATION IS WEST OF SATELLITE POLARIZATION WHEN EARTH STATION IS EAST OF SATELLITE

EARTH STATION LATITUDE IN DEGREES NORTH OR SOUTH OF EQUATOR

POLA

RIZA

TIO

N +

OR

(S

EE IL

LUST

RATI

ON)

" L" IS THE DIFFERENCE BETWEEN THE EARTH STATIONANTENNA SITE LONGITUDE AND THE SATELLITE LONGITUDE

POLARIZATION CHART

FEED POLARIZATIONFACING ANTENNA

CCW +CW

NORTHERN HEMISPHERE

FEED POLARIZATIONFACING ANTENNA

CCW +CW

SOUTHERN HEMISPHERE

+

+

CHART 1

75

60

40

30

20

15

10

5

90 80 70 60 50 40 30 20 10

010

2030

4050

6070

80

0

EART

H S

TATI

ON

LATI

TUDE

IN D

EGRE

ES N

ORT

H O

R SO

UTH

OF

EQUA

TOR

ELEVATION IN DEGREES

" L"

IS T

HE

DIF

FER

ENCE

BET

WEE

N TH

E EA

RTH

STA

TIO

NA

NTE

NN

A S

ITE

LONG

ITUD

E AN

D TH

E SA

TELL

ITE

LONG

ITUD

E

ELEV

ATIO

N CH

ART

CH

ART

2

5 10

15

20

25

30

35

40

45

50

55

60

65

70

75

50

125

120

115

110

105

100

95

90

85

80

75

70

65

50 47

.5

45 42

.5

40

37.5

35 32.5

30 27

.5

25

47.5

45

42.5

40

37.5

35

32.5

30

27.5

25

0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0

1 8 0

1 9 0

2 0 0

2 1 0

2 2 0

2 3 0

2 4 0

2 5 0

2 6 0

2 7 0

1 8 0

1 7 0

1 6 0

1 5 0

1 4 0

1 3 0

1 2 0

1 1 0

9 0

2 7 0

[ A Z I M U T H C O L U M N R E A D I N G W H E N E A R T H S T A T I O N I S W E S T O F S A T E L L I T E ]

[ A Z I M U T H C O L U M N R E A D I N G W H E N E A R T H S T A T I O N I S E A S T O F S A T E L L I T E ]

E A R T H S T A T I O N A N T E N N A L A T I T U D E ( I N D E G R E E S N O R T H O R S O U T H O F E Q U A T O R )

EART

H S

TATI

ON

ANTE

NNA

AZIM

UTH

(IN D

EGRE

ES)

EART

H S

TATI

ON

ANTE

NNA

AZIM

UTH

(IN D

EGRE

ES)

" L " I S T H E D I F F E R E N C E B E T W E E N T H E E A R T H S T A T I O N

A N T E N N A S I T E L O N G I T U D E A N D T H E S A T E L L I T E L O N G I T U D E

A Z I M U T H C H A R T

C H A R T 3

0

5

1 0

1 5

2 0

2 5

3 0

3 5

4 0

4 5

5 0

5 5

6 0

6 5

7 0

7 5

N O R T H E R N

H E M I S P H E R E

S O U T H E R N

H E M I S P H E R E

W E S T E A S TW E S TE A S T

0

1 0

2 0

3 0

4 0

5 0

6 0

7 0

8 0

9 0

3 6 0

3 5 0

3 4 0

3 3 0

3 2 0

3 1 0

3 0 0

2 9 0

2 8 0

2 7 0

To insure that the Tx/Rx Mount and 2.4m SMC Offset Antenna is operating efficiently and at an optimum,moderate maintenance is required. We recommend conducting a routine Maintenance Inspection everysix months or as needed if unusual circumstances occur, such as severe weather conditions, fallingobjects or vandalism. The following checklist is provided for your convenience.

MAINTENANCE INSPECTION CHECKLIST:

1 - FOUNDATIONn Structural Damage

2 - Tx/Rx MOUNTn All bolts (if any loosening has occurred tighten and torque - refer to Torque Chart page 3)n Structural Damagen Corrosion of galvanized steel members

(if necessary, repair with cold zinc-rich galvanizing paint)

3 - 2.4m SMC OFFSET ANTENNAn Bolts - B\, round head square neck, securing antenna to mount (Correct torque 20 Ft-lbs/27 N-m)n Structural Damage

4 - BOTTOM FEED SUPPORT TUBE, SIDE FEED SUPPORT STRUTS AND ODU BRACKETn All bolts (if loosening has occurred tighten and torque - refer to Torque Chart page 3)n Corrosion of galvanized steel members (if necessary repair with cold zinc-rich galvanizing paint)n Structural Damage

5 - FEED ASSEMBLYn All securing hardwaren Structural Damagen Feed Horn Weather Cover - Physical Damage (if damaged replace to prevent entry of water)

Upon inspection, make necessary repairs and replace any damaged parts.For replacement parts, contact:

U.S.A.: VSAT Customer Service, Channel Master England: CHANNEL MASTERP.O. Box 1416 Premier Business Park1315 Industrial Park Drive Croft Head Road, Off Philips RoadSmithfield, NC 27577 U.S.A. Whitebirk Industrial EstateTelephone: (919) 989-2205 Blackburn, Lancashire England BB1 5UEFax: (919) 989-2200 (0254) 680444 Fax (0254) 672299

MAINTENANCE

ITEM PART NO. DESCRIPTION QTY.1 2020753-03 BACKFRAME ASSEMBLY, GALV 1

2 2070035-01 RD HD SQ NK BLT GALV B\,-13 x 5Z\x 43 2509008-02 LOCK WASHER, GALV. Z\x 20

4 2389002-01 HEX NUT, GALV Z\x-13 19

5 3040748-35 2.4M SMC ANTENNA TOP HALF (TX QUALITY) 1- 3040747-35 2.4M SMC ANTENNA BTM HALF (TX QUALITY) 16 2382600-01 HEX NUT, SS Z\v-20 6

7 2502600-01 FLAT WASHER, SS Z\v 2

8 2602600-01 LOCK WASHER, SS Z\v 4

10 2020773-02 BOTTOM FEED SUPPORT TUBE 1

11 2509009-01 EXTERNAL TOOTH LOCK WASHER Z\x 4

12 2075088-01 HEX BOLT, GALV Z\x x 5Z\x 2

13 2010301-02 L.H. CHANNEL, CAP MT., GALV 1

14 2389005-01 HEX NUT, GALV M\,-9 3

15 2509008-04 LOCK WASHER M\, 1

16 2070020-02 RD HD SQ NK BLT GALV Z\x x 1Z\x GD 5 1

PARTS AND HARDWARE

Tx MOUNT AND BOTTOM FEED SUPPORT TUBEITEM PART NO. DESCRIPTION QTY.

17 2075209-01 HEX BOLT, GALV Z\x x 1Z\v GD 5 10

18 2020755-04 YOKE CAP ASSEMBLY, GALV 1

19 2020754-02 TOP PLATE YOKE ASSY, GALV 1

24 2070039-01 HEX BOLT M\,-9 x 6 1

25 2020555-04 ELEVATION ADJUSTMENT SCREW 126 2010453-03 TRUNNION, GALV 127 2020774-01 SIDE STRUT 2

28 2072612-01 HEX BOLT, SS Z\v x C\v 4

40 2075202-06 AZIMUTH ADJUSTMENT SCREW 1

41 2509008-03 LOCK WSHER, GALV B\, 4

42 2389003-01 HEX NUT, GALV B\, -13 1

43 2070035-02 RD HD SQ NK BLT GALV B\, x 1Z\x 1

44 2075024-01 HEX BOLT, GALV Z\x x 1Z\x 12

45 2509014-01 FLAT WASHER, SS Z\x 24

46 2060033-01 HEX BOLT, SS, Z\v x 1Z\x FULL THREAD 1

FIGURE - 12.0

22.6 OFFSET MECHANICALAXIS(NORMAL TOANTENNA FACE)

BEAM

AXIS

69.5"

MO

MH = HORIZONTAL FORCEFV = VERTICAL FORCEMT = TORSIONAL MOMENTMO = OVERTURNING MOMENT

FV

MT

FH

2.4m OFFSET SMC ANTENNA SURVIVAL WINDLOADS AT 125 MPH VELOCITY

ELEVATION FORCE MOMENTSDEGREES (POUNDS) (FOOT-POUNDS)

MECH. BEAM FH FV MT MO

0 23 3,330 -89 2,612 19,28610 33 3,152 -666 2,557 18,25520 43 3,064 -1,288 2,426 17,74630 53 2,775 -1,843 2,202 16,07240 63 2,442 -2,220 1,867 14,14350 73 2,131 -2,442 1,568 12,34260 83 1,776 -2,553 1,213 10,28670 93 1,332 -1,976 933 7,715

MO BASED ON 69.5 FROM MOUNTING SURFACE TO C OF ANTENNA.

Values shown above represent maximum forces for any wind direction.Height and exposure factors from the uniform building code are NOT included.

L

LL

MAX

IMUM

DIS

TAN

CE F

ROM

GRO

UND

TO C

OF

ANTE

NNA

6(N

OTE:

C IS

6A

BOVE

TO

P O

F G

ROUN

D PO

LE)

GRO

UND

FOR

WIN

D S

PEED

OF:

PIPE

EXPO

SURE

125

MPH

120

MPH

115

MPH

110

MPH

100

MPH

6.62

O.D

B96

_

__

_

x 6.

06 I.

D.C

62

67

73

80

_

Sche

dule

40

D_

__

61

73

6.62

O.D.

C89

96

x

5.76

I.D.

D67

80

Sc

hedu

le 8

0

TOP

BOTT

OM

()

C L

LC

LC

LC

96.8

7

104.

87 32.3

7

24.0

0

6.62

O.D.

16.7

5

63.5

03.

25

106

12.5

7

92

12

22.6

"

121.

94

5

6.3

34.7

5

14.6

21.

129.

08.

1215

.5

67

22.6

"10" .

75

ANT.

116.

25

2.5

SQTU

BE

35.6

2

82.2

5 12.6

" REF

.

BOT.

OF

ANT.

4.0

SQ T

UBE

26.5

011

.00

13.7

5

ANT.

MEC

H AX

IS

M\,

69.5

SEE

CHAR

TTOP

OF

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HEX (PIVOT) BOLT, GALV. M\,-9 x 6"Item 24

ROUND HD SQ NK BOLT, GALV. B\,-11 x 5Z\x"Item 2

HEX HD BOLT, GALV. Z\x-13 x 5Z\x"Item 12

HEX HD BOLT, GALV. Z\x-13 x 1Z\v", Gd 5Item 17

HEX HD BOLT, GALV. Z\x-13 x 1Z\x"Item 44

HEX HD CAP SCREW, SS Z\v-20 UNC x C\v"Item 28

Hardware illustrations are true size. Place actual hardware on top of illustration to identify.

HARDWARE SORTER