Bressay - Ofcom TX Visualiser

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Bressay

Shetland · BBC Radio 4 (FM) · 94.9 MHz

Antenna pattern

In-use horizontal pattern

ERP field: In-UseERP/HP = 25 kW

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 0 dB attenuation; relative ERP 100% of peak 10°: 1 dB attenuation; relative ERP 79.4% of peak 20°: 2 dB attenuation; relative ERP 63.1% of peak 30°: 3 dB attenuation; relative ERP 50.1% of peak 40°: 6 dB attenuation; relative ERP 25.1% of peak 50°: 8 dB attenuation; relative ERP 15.8% of peak 60°: 14 dB attenuation; relative ERP 4% of peak 70°: 14 dB attenuation; relative ERP 4% of peak 80°: 14 dB attenuation; relative ERP 4% of peak 90°: 14 dB attenuation; relative ERP 4% of peak 100°: 14 dB attenuation; relative ERP 4% of peak 110°: 14 dB attenuation; relative ERP 4% of peak 120°: 14 dB attenuation; relative ERP 4% of peak 130°: 12 dB attenuation; relative ERP 6.3% of peak 140°: 9 dB attenuation; relative ERP 12.6% of peak 150°: 7 dB attenuation; relative ERP 20% of peak 160°: 5 dB attenuation; relative ERP 31.6% of peak 170°: 4 dB attenuation; relative ERP 39.8% of peak 180°: 3 dB attenuation; relative ERP 50.1% of peak 190°: 3 dB attenuation; relative ERP 50.1% of peak 200°: 3 dB attenuation; relative ERP 50.1% of peak 210°: 2 dB attenuation; relative ERP 63.1% of peak 220°: 2 dB attenuation; relative ERP 63.1% of peak 230°: 2 dB attenuation; relative ERP 63.1% of peak 240°: 3 dB attenuation; relative ERP 50.1% of peak 250°: 5 dB attenuation; relative ERP 31.6% of peak 260°: 6 dB attenuation; relative ERP 25.1% of peak 270°: 8 dB attenuation; relative ERP 15.8% of peak 280°: 8 dB attenuation; relative ERP 15.8% of peak 290°: 7 dB attenuation; relative ERP 20% of peak 300°: 3 dB attenuation; relative ERP 50.1% of peak 310°: 1 dB attenuation; relative ERP 79.4% of peak 320°: 0 dB attenuation; relative ERP 100% of peak 330°: 0 dB attenuation; relative ERP 100% of peak 340°: 0 dB attenuation; relative ERP 100% of peak 350°: 0 dB attenuation; relative ERP 100% of peak

Pattern values are treated as dB attenuation. The outer ring is the lowest attenuation / strongest direction; radius uses field-strength scaling: 10−dB/20.

Best bearing(s): 0°, 320°, 330°, 340°, 350° at 0 dB attenuation.

Deepest restriction(s): 60°, 70°, 80°, 90°, 100°, 110°, 120° at 14 dB attenuation.

In-use vertical pattern

ERP field: In-Use ERP/VP = 25 kW

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 0 dB attenuation; relative ERP 100% of peak 10°: 1 dB attenuation; relative ERP 79.4% of peak 20°: 2 dB attenuation; relative ERP 63.1% of peak 30°: 3 dB attenuation; relative ERP 50.1% of peak 40°: 6 dB attenuation; relative ERP 25.1% of peak 50°: 8 dB attenuation; relative ERP 15.8% of peak 60°: 14 dB attenuation; relative ERP 4% of peak 70°: 14 dB attenuation; relative ERP 4% of peak 80°: 14 dB attenuation; relative ERP 4% of peak 90°: 14 dB attenuation; relative ERP 4% of peak 100°: 14 dB attenuation; relative ERP 4% of peak 110°: 14 dB attenuation; relative ERP 4% of peak 120°: 14 dB attenuation; relative ERP 4% of peak 130°: 12 dB attenuation; relative ERP 6.3% of peak 140°: 9 dB attenuation; relative ERP 12.6% of peak 150°: 7 dB attenuation; relative ERP 20% of peak 160°: 5 dB attenuation; relative ERP 31.6% of peak 170°: 4 dB attenuation; relative ERP 39.8% of peak 180°: 3 dB attenuation; relative ERP 50.1% of peak 190°: 3 dB attenuation; relative ERP 50.1% of peak 200°: 3 dB attenuation; relative ERP 50.1% of peak 210°: 2 dB attenuation; relative ERP 63.1% of peak 220°: 2 dB attenuation; relative ERP 63.1% of peak 230°: 2 dB attenuation; relative ERP 63.1% of peak 240°: 3 dB attenuation; relative ERP 50.1% of peak 250°: 5 dB attenuation; relative ERP 31.6% of peak 260°: 6 dB attenuation; relative ERP 25.1% of peak 270°: 8 dB attenuation; relative ERP 15.8% of peak 280°: 8 dB attenuation; relative ERP 15.8% of peak 290°: 7 dB attenuation; relative ERP 20% of peak 300°: 3 dB attenuation; relative ERP 50.1% of peak 310°: 1 dB attenuation; relative ERP 79.4% of peak 320°: 0 dB attenuation; relative ERP 100% of peak 330°: 0 dB attenuation; relative ERP 100% of peak 340°: 0 dB attenuation; relative ERP 100% of peak 350°: 0 dB attenuation; relative ERP 100% of peak

Pattern values are treated as dB attenuation. The outer ring is the lowest attenuation / strongest direction; radius uses field-strength scaling: 10−dB/20.

Best bearing(s): 0°, 320°, 330°, 340°, 350° at 0 dB attenuation.

Deepest restriction(s): 60°, 70°, 80°, 90°, 100°, 110°, 120° at 14 dB attenuation.

Parameters

Date 01/01/1900
Station BBC Radio 4 (FM)
Area Shetland
Site Bressay
Licence BBC000004
mb21 Bressay
Frequency 94.9
NGR HU50313874
RDS PS _BBC_R4_
RDS PI C204
Switched PI
TP/TA
TMC
Lat 60.130113
Long -1.09628
Site Ht 224
In-Use Aerial Ht 61
In-UseERP/HP 25 kW
In-Use ERP/VP 25 kW
Max Dir
Licensed ERP/HP 25 kW
Licensed ERP/VP 25 kW

Pattern values

In-use horizontal pattern

0°10°20°30°40°50°60°70°80°90°100°110°120°130°140°150°160°170°180°190°200°210°220°230°240°250°260°270°280°290°300°310°320°330°340°350°
01236814141414141414129754333222356887310000

In-use vertical pattern

0°10°20°30°40°50°60°70°80°90°100°110°120°130°140°150°160°170°180°190°200°210°220°230°240°250°260°270°280°290°300°310°320°330°340°350°
01236814141414141414129754333222356887310000