Darvel – 152.00 Main Station · 21, 24, 27, 30 Optimal Channel for Interleaved Service: Ch30...

Interleaved Spectrum Study

Darvel 22 of 526 29 October 2007 Version 1.1

Darvel – 152.00 Type: Main Station Channel Usage:

Channels Investigated: 21, 24, 27, 30 Optimal Channel for Interleaved Service: Ch30 Maximum ERP: 10 kW Map Antenna Height: 158 m Permitted Template: Protect populated pixels in the DPSA

Figure 1 : Darvel template ch30, 10 kW ERP at 158m


Darvel Page 123 of 526 29 October 2007 Version 1.1

Coverage: DTT 6 Core Gross: 198,516 Within DPSA: 129,320 Local Gross: 906,349 Local within DPSA: 142,525

Figure 2 : Darvel coverage ch30, 10 kW ERP at 158m 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. It should be noted that coverage achieved by a real antenna system will probably be lower. Reducing the antenna height reduces the restrictions required figure 3. Templates for the other channels investigated are shown in figure 4

Ch30, 10 kW ERP at 79m a.g.l

Ch30, 10 kW ERP at 40m a.g.l

Coverage at 79m Local Gross: 726,574 Local within DPSA 141,648


Figure 3 : Darvel ch30 template at reduced height.



Other Channel Possibilities

Ch21

Ch24

Ch27

Figure 4 : Darvel alternative channel templates at 10 kW ERP 158m a.g.l

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

10 14800 RUMSTER FOREST 336950 963850 58.5 95.1 88.7 5.5 2 2

130 13700 CALDBECK 314050 581650 57.6 90.7 88.5 12.2 30 336140 13700 CALDBECK 297950 574150 59.4 90.3 88.1 12 81 743150 13700 CALDBECK 287250 579950 56.1 94 89.5 9.3 9 10160 12100 THE WREKIN 348850 296050 59.2 76.8 76.1 1.9 1 1160 13700 CALDBECK 276850 568250 59.7 92.1 89.7 4.7 4 5170 13700 CALDBECK 267650 566950 57 79.8 78.7 12.4 16 42190 13700 CALDBECK 245050 546650 65.2 87.4 86 0.3 1 2

Table 1: Restrictions for ch30, 10 kW omnidirectional at 158m


Divis Page 127 of 526 12 October 2007 Version 1.2

Divis – 107.00 Type: Main Station Channel Usage:

Channels Investigated: 22,25,28,30,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62 Optimal Channel for Interleaved Service: Ch30 Maximum ERP: 10 kW Maximum Antenna Height: 186m Permitted Template: Protect populated pixels in the DPSA

Figure 1 : Divis template ch30, 10kW ERP at 186m




Figure 2 : Divis coverage ch30, 10kW ERP at 186m 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 reduces the restrictions required figure 3. Templates for the other channels investigated are shown in figure 4 Ch30, 10kW ERP at 93m a.g.l

Ch30, 10kW ERP at 47m a.g.l



Figure 3 : Divis ch30 templates at reduced height.

It should be noted that the patterns do not include possible restrictions towards Ireland, in particular Clermont Carn which is assigned channels 53, 57, 60, 63, 52, 56, 66, and 68.




Ch22

Ch25

Ch28

Ch41

Ch42

Ch43

Figure 4 : Divis alternative channel templates at 10 kW ERP 186m a.g.l.




Ch44

Ch45

Ch46

Ch47

Ch48

Ch49





Ch50

Ch51

Ch52

Ch53

Ch54

Ch55





Ch56

Ch57

Ch58

Ch59

Ch60

Ch61



Divis 4 of 526 12 October 2007 Version 1.2


Ch62


Interleaved

Spectrum Study



Northing

Wanted FS dBμV/m

Wanted %Location

Modified %

Location

ERP Reduction

dB

Number of

points

Pop Affected

70 13700 CALDBECK 305150 578650 58.7 79.7 77.6 14.9 27 56 80 13700 CALDBECK 355750 555650 64.9 98.8 91.3 34.6 309 1260 90 13700 CALDBECK 308550 515050 52.1 78.4 75.1 27.9 203 2159

100 13700 CALDBECK 246150 504450 79.9 77.7 77.5 17.4 6 28 110 13700 CALDBECK 244750 493650 72 100 89.1 2.2 3 37 120 12100 THE WREKIN 380050 345750 61.2 87.1 86.6 5.1 7 32 130 12100 THE WREKIN 391650 292350 74.3 89.7 89.6 5.2 8 64 140 12100 THE WREKIN 348850 296050 59.2 76.8 76.1 0.7 2 20

Table 1: Restrictions for Ch30, 10kW omni-directional at 186m (UK only restrictions)


Dover Page 136 of 526 2 November 2007 Version 1.2

Dover – 113.00 Type: Main Station Channel Usage:

Channels Investigated: 43, 44, 45, 46, 47, 48, 49, 52, 54, 56, 57, 58, 60, 61 Optimal Channel for Interleaved Service: Ch57 Maximum ERP: 10 kW Maximum Antenna Height: 237 m Permitted Template: Protect populated pixels in the DPSA

Figure 1 : Dover template ch57 with Continental restrictions, 10kW ERP at 237m




Figure 2 : Dover coverage ch57 with Continental restrictions, 10kW ERP at 237m

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 Irish 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 Ch57, 10kW ERP at 237m a.g.l

Ch57, 10kW ERP at 237m a.g.l

UK restrictions only template UK + Continental restrictions template as

used for prediction in this document

Figure 3 : Dover ch57 templates with and without continental restrictions.




Ch43

Ch44

Ch46

Ch47

Ch48

Ch49

Figure 4 : Dover alternative channel templates at 10 kW ERP 237m a.g.l




Ch52

Ch54

Ch56

Ch58

Ch60

Ch61

Figure 4 : Dover alternative channel templates at 10 kW ERP 237m a.g.l

Interleaved

Spectrum Study



Northing

Wanted FS

dBμV/m Wanted

%Location

Modified %

Location

ERP Reduction

dB

Number of

points

Pop Affected

240 10805 WHITEHAWK HILL 558750 97350 74.2 91 88.9 14.8 2 2

250 10805 WHITEHAWK HILL 535950 109850 83.5 86.3 87.2 9.3 32 545

260 10103 REIGATE 512250 114650 74 92 89.8 4.4 1 1

260 10805 WHITEHAWK HILL 535050 112650 88.6 80.4 78.4 6.2 1 2

270 12608 ALTON 471250 139750 67.9 88 86.2 1.6 1 29270 10103 REIGATE 533250 143550 65.2 93.7 90.3 8.2 49 134270 10126 ST MARKS VP 557050 138350 64.3 92.9 90.6 6.2 5 87270 12602 THE BOURNES 487650 143650 59.9 78.6 75.1 2.4 3 6280 10103 REIGATE 524550 149250 68.5 88.5 86.4 10.2 92 615280 10135 OTFORD 552350 154450 66.8 90.6 88.1 1.3 1 5280 11700 OXFORD 428050 178950 68.3 89.1 88 5.4 1 2290 10135 OTFORD 549550 157850 68.2 87.2 85.9 7.2 4 13290 11700 OXFORD 408650 221650 74.1 87.7 86 10.5 71 376290 10137 MICKLEFIELD 488550 193250 76.1 89.4 89.2 0.1 1 10300 10149 GRAVESEND 565450 173250 66.9 76.3 74.7 6.4 7 91300 11700 OXFORD 438750 240350 69.8 83.4 82.6 9.7 60 549310 11700 OXFORD 492150 227250 61.3 90.4 88.1 1.1 1 8310 11100 WALTHAM 502950 220350 65.4 74.2 71.1 6.7 1 27320 11100 WALTHAM 435050 362750 56.8 74.1 67.6 1.7 15 114

Table 1: Restrictions for ch57, 10kW omnidirectional at 237m (UK only restrictions)

Darvel – 152.00 Main Station · 21, 24, 27, 30 Optimal Channel for Interleaved Service: Ch30...

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