Llanddona - Ofcom TX Visualiser

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Llanddona

Anglesey · 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°: 20.2 dB attenuation; relative ERP 1% of peak 10°: 17.5 dB attenuation; relative ERP 1.8% of peak 20°: 20.6 dB attenuation; relative ERP 0.9% of peak 30°: 13.8 dB attenuation; relative ERP 4.2% of peak 40°: 10.2 dB attenuation; relative ERP 9.5% of peak 50°: 9.6 dB attenuation; relative ERP 11% of peak 60°: 6.7 dB attenuation; relative ERP 21.4% of peak 70°: 4.7 dB attenuation; relative ERP 33.9% of peak 80°: 2.9 dB attenuation; relative ERP 51.3% of peak 90°: 1.6 dB attenuation; relative ERP 69.2% of peak 100°: 2.8 dB attenuation; relative ERP 52.5% of peak 110°: 3.1 dB attenuation; relative ERP 49% of peak 120°: 3.9 dB attenuation; relative ERP 40.7% of peak 130°: 5.9 dB attenuation; relative ERP 25.7% of peak 140°: 6.4 dB attenuation; relative ERP 22.9% of peak 150°: 5.9 dB attenuation; relative ERP 25.7% of peak 160°: 5.3 dB attenuation; relative ERP 29.5% of peak 170°: 4.6 dB attenuation; relative ERP 34.7% of peak 180°: 3.6 dB attenuation; relative ERP 43.7% of peak 190°: 3 dB attenuation; relative ERP 50.1% of peak 200°: 1.2 dB attenuation; relative ERP 75.9% of peak 210°: 0 dB attenuation; relative ERP 100% of peak 220°: 2.3 dB attenuation; relative ERP 58.9% of peak 230°: 9.4 dB attenuation; relative ERP 11.5% of peak 240°: 9.8 dB attenuation; relative ERP 10.5% of peak 250°: 5.7 dB attenuation; relative ERP 26.9% of peak 260°: 4.9 dB attenuation; relative ERP 32.4% of peak 270°: 5.4 dB attenuation; relative ERP 28.8% of peak 280°: 6.4 dB attenuation; relative ERP 22.9% of peak 290°: 7.4 dB attenuation; relative ERP 18.2% of peak 300°: 8.8 dB attenuation; relative ERP 13.2% of peak 310°: 10.9 dB attenuation; relative ERP 8.1% of peak 320°: 12.9 dB attenuation; relative ERP 5.1% of peak 330°: 14 dB attenuation; relative ERP 4% of peak 340°: 14.2 dB attenuation; relative ERP 3.8% of peak 350°: 18.8 dB attenuation; relative ERP 1.3% 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): 210° at 0 dB attenuation.

Deepest restriction(s): 20° at 20.6 dB attenuation.

Parameters

Date 19/07/2006
Ensemble BBC National DAB
Licence BBCD000001
mb21 Llanddona
Ensemble Area UK
EID CE15
Transmitter Area Anglesey
Site Llanddona
Freq. 225.648
Block 12B
TII Main Id (Hex) 05
TII Sub Id (Hex) 01
NGR SH58298101
Longitude/Latitude 004W07 42 53N18 25
Lat 53.307018
Long -4.128251
Site Height 146
In-Use Ae Ht 82
In-Use ERP Total 5 kW
Dir Max ERP 150°

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°
20.217.520.613.810.29.66.74.72.91.62.83.13.95.96.45.95.34.63.631.202.39.49.85.74.95.46.47.48.810.912.91414.218.8