Other Channel Possibilities - Ofcom · 2016-08-25 · Other Channel Possibilities Ch22 Ch23 Ch25 Ch26 Ch28 Ch29 ... 130 11596 BURNHAM ON ... well as the template with continental

Interleaved Spectrum Study

Sandy Heath Page 427 of 526 1 October 2007 Version 1.1

Other Channel Possibilities

Ch22

Ch23

Ch25

Ch26

Ch28

Ch29

Figure 4 : Sandy Heath alternative channel templates at 10 kW ERP 235m a.g.l




Ch30

Ch41

Ch42

Ch43

Ch44

Ch45





Ch46

Ch47

Ch50

Ch53

Ch54

Ch55





Ch56

Ch57

Ch58

Ch59

Ch60

Ch61





Ch62


Interleaved

Spectrum Study


Bearing ETN Station Name Easting

Northing

Wanted FS dB

dBμV/m Wanted

%Location

Modified %

Location

ERP Reduction

dB

Number of

points

Pop Affected

30 12403 KINGS LYNN 561750 320050 62.2 82.4 79.8 23.7 70 96840 12403 KINGS LYNN 569850 316250 62.3 88.1 85.4 26.8 76 425

40 11407 WELLS NEXT THE SEA 600850 341150 67.8 86.1 83.8 8.6 2 2

110 11598 CLACTON 619550 216550 89.5 91.1 89.1 0.3 1 23

130 11596 BURNHAM ON CROUCH 593650 197450 94.7 90.4 88.1 4.6 24 176

160 13900 HEATHFIELD 583750 112350 73.9 91.4 89.4 4.3 4 30160 10104 TUNBRIDGE WELLS 562550 133050 73 90.1 89.4 1.5 2 2170 13900 HEATHFIELD 552550 102650 61.3 81.7 81.1 6.1 2 2170 10104 TUNBRIDGE WELLS 550450 130850 76.2 87 86.3 4.8 4 10180 10101 GUILDFORD 519950 108950 61.6 88.9 86.5 7.9 3 47180 13900 HEATHFIELD 512250 114550 66.8 88 86.5 1.8 1 4190 10101 GUILDFORD 499750 141850 60.5 90.1 88.4 16 65 620200 10101 GUILDFORD 483850 136750 67.2 82.5 80.4 15 100 1093240 10600 WENVOE 301550 139650 63.3 88.3 87 1.9 1 1250 10600 WENVOE 352350 193950 60.7 88.4 84.8 3.4 3 56250 10200 SUTTON COLDFIELD 449650 228450 60.1 91.5 86.8 15.4 6 16260 10200 SUTTON COLDFIELD 414950 234450 61.2 89.6 84.7 23.2 187 1332270 10200 SUTTON COLDFIELD 320150 257950 58.8 86.2 81 21.6 377 1783

270 11904 LLANDRINDOD WELLS 298650 260950 56.5 84.3 81.3 4.2 2 2

280 10200 SUTTON COLDFIELD 457350 254650 76.3 86.1 84.2 22.4 749 7374280 14927 PRESTEIGNE 333850 266350 73.5 78.7 77.4 3.6 1 1

280 11904 LLANDRINDOD WELLS 328250 278650 57.5 86.5 83.6 2.9 1 1

290 10200 SUTTON COLDFIELD 475750 263950 65.5 84.5 79.5 23.4 1138 20207

Table 1: Restrictions for ch49, 10kW omnidirectional at 235m

Interleaved

Spectrum Study


Bearing ETN Station Name Easting

Northing

Wanted FS dB

dBμV/m Wanted

%Location

Modified %

Location

ERP Reduction

dB

Number of

points

Pop Affected

300 10200 SUTTON COLDFIELD 474650 269850 64.2 80.9 75.8 21.5 345 3883310 10200 SUTTON COLDFIELD 407150 356650 57.1 85.3 79.5 28.9 892 9875320 10200 SUTTON COLDFIELD 405050 368150 63.4 91.5 87.7 24.3 492 3242320 10418 CALVER PEAK 424650 370350 57.5 89.2 87.1 2 1 2330 10200 SUTTON COLDFIELD 480950 308050 72.3 85.6 83.5 15.5 24 90

Table 1: Restrictions for ch49, 10kW omnidirectional at 235m


Sheffield Page 434 of 526 26 October 2007 Version 1.1

Sheffield – 104.03 Type: Relay Station Channel Usage:

Channels Investigated: 22,23,25,26,28,29,30,41,43,44,46,47,48,50,51,52,53,54,55,56,57,58,59,60,61 Optimal Channel for Interleaved Service: Ch 26 Maximum ERP: 1 kW Maximum Antenna Height: 48m Permitted Template: Protect populated pixels in the DPSA

Figure 1: Sheffield template Ch26, 1kW ERP at 48m



Coverage: DTT 6 Core Gross: 266,498 Within DPSA: 93,808 Local Gross: 269,629 Local within DPSA: 89,171

Figure 2: Sheffield coverage Ch26, 1kW ERP at 48m a.g.l. QPSK 2/3



Comments Coverage restrictions are detailed in table 1 and the coverage achieved by an antenna matching the template is shown in figure 2. Reducing the antenna height marginally reduces the restrictions required figure 3. Templates for the other channels investigated are shown in figure 4.

Ch26, 1kW ERP at 24m a.g.l Coverage at 24m Local Gross: 246,275 Local within DPSA: 90,561

Figure 3: Sheffield Ch26 template at reduced height.




Ch22

Ch23

Ch25

Ch28

Ch29

Ch30

Figure 4: Sheffield alternative channel templates at 1 kW ERP 48m a.g.l.




Ch41

Ch43

Ch44

Ch46

Ch47

Ch48





Ch50

Ch51

Ch52

Ch53

Ch54

Ch55





Ch56

Ch57

Ch58

Ch59

Ch60

Ch61





Ch62


Interleaved

Spectrum Study


Bearing ETN Station Name

Easting

Northing

Wanted FS

dBμV/m Wanted

%Location

Modified %

Location

ERP Reduction

dB

Number of

points

Pop Affected

20 11600 BILSDALE 456550 478650 52.3 79.9 76.1 0.2 1 1 30 11600 BILSDALE 484250 484250 53.7 88.9 86.8 6.1 4 20 40 11600 BILSDALE 493250 464750 58.4 94.7 90.3 0.9 4 53 50 11600 BILSDALE 445650 397850 69.1 99.8 90.3 10.7 7 131 60 11600 BILSDALE 451450 398350 60.4 99.2 90.8 9.5 9 68 100 11401 WEST RUNTON 625750 338250 69.1 86.7 85 0.3 1 1 120 10405 CHESTERFIELD 446250 379750 70.9 99.3 90.9 6.8 1 1 120 11600 BILSDALE 439150 383450 71.4 100 89.5 11.9 2 40 140 10405 CHESTERFIELD 446450 371250 75.7 100 89.6 12.9 8 129 150 10405 CHESTERFIELD 436650 379050 61.2 98.3 91.1 8.6 29 465 160 10405 CHESTERFIELD 437750 368750 61.5 88.2 88.1 27.3 248 5136 160 11600 BILSDALE 434450 381750 64.6 99.1 91.2 15.1 1 25 170 10405 CHESTERFIELD 435050 370350 60 90 89.4 24.4 164 2777 180 10405 CHESTERFIELD 433750 368850 76.1 94.2 91.7 11.3 11 57 190 10405 CHESTERFIELD 431150 376550 66 90.2 89.9 1.6 1 1

Table 1: Sheffield Ch26 template pattern restrictions


Stockland Hill Page 443 of 526 30 October 2007 Version 1.1

Stockland Hill– 131.00 Type: Main Station Channel Usage:

Channels Investigated: 21, 24, 27, 30 Optimal Channel for Interleaved Service: Ch30 Maximum ERP: 10 kW Maximum Antenna Height: 233 m Permitted Template: Protect populated pixels in the DPSA

Figure 1 : Stockland Hill template ch30 with French restrictions, 10 kW ERP at 233m



Coverage: DTT 6 Core Gross: 203,866 Within DPSA: 121,966 Local Gross: 306,538 Local within DPSA 126,129

Figure 2 : Stockland Hill coverage ch30, 10 kW ERP at 234m a.g.l. QPSK 2/3



Comments Coverage restrictions are detailed in table 1 and the coverage achieved by an antenna matching the template with French restrictions is shown in figure 2. It should be noted that coverage achieved by a real antenna system will probably be lower. The original template without consideration of continental restrictions is shown as well as the template with continental restrictions, used for predictions in this document in figure 3. Restrictions to the Continent and Ireland are based on 45 dBμV/m at the coast. Subject to negotiation with France and Ireland restrictions may be increased or decreased. Templates for the other channels investigated are shown in figure 4 Ch30, 10kW ERP at 233m a.g.l

Ch30, 10kW ERP at 233m a.g.l

UK restrictions only template UK + French restrictions template as used

for prediction in this document

Figure 3 : Stockland Hill ch30 templates with and without continental restrictions.




Ch21

Ch24

Ch27

Figure 4 : Stockland Hill alternative channel templates at 10 kW ERP 233m a.g.l

(UK only restrictions)

Interleaved

Spectrum Study

Stockland Hill Stockland Hill Page 447 of 526 30 October 2007 Version 1.1

Bearing ETN Station Name

Easting

Northing

Wanted FS

dBμV/m Wanted % Location

Modified %

Location

ERP Reduction

dB

Number of

points

Pop Affected

10 12100 THE WREKIN 352150 275250 62.2 88.3 87.5 9.7 28 30420 12100 THE WREKIN 403150 348950 63.1 89.5 89.4 5.8 1 130 12100 THE WREKIN 394350 222150 57.4 91.6 88.5 2.5 2 7230 10208 LARK STOKE 419050 263350 67.1 88.2 87 3.2 8 13850 10100 CRYSTAL PALACE 426650 180250 57.9 93.6 89.5 8.5 5 860 10100 CRYSTAL PALACE 416850 164950 62.6 89.8 87.5 7.9 53 41070 10100 CRYSTAL PALACE 477650 140850 58.6 80.2 77.3 8.9 134 221580 10100 CRYSTAL PALACE 485450 136450 66.7 85.7 83.4 11.4 107 64890 10100 CRYSTAL PALACE 510550 113650 58.3 80.3 76.7 3 10 54

Table 1: Restrictions for ch30, 10 kW omnidirectional at 233m (UK only restrictions)

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Other Channel Possibilities - Ofcom · 2016-08-25 · Other Channel Possibilities Ch22 Ch23 Ch25 Ch26 Ch28 Ch29 ... 130 11596 BURNHAM ON ... well as the template with continental