Douglas - Ofcom TX Visualiser

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Douglas

Isle of Man · BBC National DAB · 12B / 225.648 MHz

Antenna pattern

Antenna pattern

ERP field: In-Use ERP Total = 5 kW

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 4.1 dB attenuation; relative ERP 38.9% of peak 10°: 2.3 dB attenuation; relative ERP 58.9% of peak 20°: 1 dB attenuation; relative ERP 79.4% of peak 30°: 0.2 dB attenuation; relative ERP 95.5% of peak 40°: 0.5 dB attenuation; relative ERP 89.1% of peak 50°: 1.7 dB attenuation; relative ERP 67.6% of peak 60°: 3.5 dB attenuation; relative ERP 44.7% of peak 70°: 6 dB attenuation; relative ERP 25.1% of peak 80°: 9.1 dB attenuation; relative ERP 12.3% of peak 90°: 12 dB attenuation; relative ERP 6.3% of peak 100°: 17.3 dB attenuation; relative ERP 1.9% of peak 110°: 20.5 dB attenuation; relative ERP 0.9% of peak 120°: 21.6 dB attenuation; relative ERP 0.7% of peak 130°: 22.7 dB attenuation; relative ERP 0.5% of peak 140°: 23.8 dB attenuation; relative ERP 0.4% of peak 150°: 24.9 dB attenuation; relative ERP 0.3% of peak 160°: 26 dB attenuation; relative ERP 0.3% of peak 170°: 24.9 dB attenuation; relative ERP 0.3% of peak 180°: 23.9 dB attenuation; relative ERP 0.4% of peak 190°: 22.8 dB attenuation; relative ERP 0.5% of peak 200°: 21.7 dB attenuation; relative ERP 0.7% of peak 210°: 20.6 dB attenuation; relative ERP 0.9% of peak 220°: 17.7 dB attenuation; relative ERP 1.7% of peak 230°: 12 dB attenuation; relative ERP 6.3% of peak 240°: 8.7 dB attenuation; relative ERP 13.5% of peak 250°: 6 dB attenuation; relative ERP 25.1% of peak 260°: 3.3 dB attenuation; relative ERP 46.8% of peak 270°: 1.5 dB attenuation; relative ERP 70.8% of peak 280°: 0.3 dB attenuation; relative ERP 93.3% of peak 290°: 0 dB attenuation; relative ERP 100% of peak 300°: 1 dB attenuation; relative ERP 79.4% of peak 310°: 2.8 dB attenuation; relative ERP 52.5% of peak 320°: 3.8 dB attenuation; relative ERP 41.7% of peak 330°: 3.4 dB attenuation; relative ERP 45.7% of peak 340°: 2.8 dB attenuation; relative ERP 52.5% of peak 350°: 3.7 dB attenuation; relative ERP 42.7% 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): 290° at 0 dB attenuation.

Deepest restriction(s): 160° at 26 dB attenuation.

Parameters

Date 12/12/2007
Ensemble BBC National DAB
Licence BBCD000001
Ensemble Area UK
EID CE15
Transmitter Area Isle of Man
Site Douglas
Freq. 225.648
Block 12B
TII Main Id (Hex) 09
TII Sub Id (Hex) 0B
NGR SC37247451
Longitude/Latitude 004W29 35 54N08 26
Lat 54.14057
Long -4.493077
Site Height 143
In-Use Ae Ht 74
In-Use ERP Total 5 kW
Dir Max ERP 30°

Services listed for this ensemble row

TypeService labelSIdLSN
Audio BBC Radio 1 C221
Audio BBC Radio 2 C222
Audio BBC Radio 3 C223
Audio BBC Radio 4 C224
Audio Radio 5 Live C225
Audio Radio 5 Extra C228
Audio BBC Radio 6Music C22B
Audio BBC Radio 1Xtra C22A
Audio BBC WorldService C238
Audio BBC AsianNetwork C236
Audio BBC Radio 4Extra C22C
Audio BBC Radio1Anthms C22D
Audio BBC Radio1Dance C229
Audio BBC Radio3Unwind C22E
Data BBC Guide E1C79E5E
Data BBC Travel E1C79E60

Pattern values

Antenna 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°
4.12.310.20.51.73.569.11217.320.521.622.723.824.92624.923.922.821.720.617.7128.763.31.50.3012.83.83.42.83.7