Fort Widley - Ofcom TX Visualiser

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Fort Widley

Portsmouth · Portsmouth small scale · 8B / 197.648 MHz

Antenna pattern

Antenna pattern

ERP field: In-Use ERP Total = 193.8 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 4.9 dB attenuation; relative ERP 32.4% of peak 10°: 3.8 dB attenuation; relative ERP 41.7% of peak 20°: 3 dB attenuation; relative ERP 50.1% of peak 30°: 2 dB attenuation; relative ERP 63.1% of peak 40°: 1.2 dB attenuation; relative ERP 75.9% of peak 50°: 0.7 dB attenuation; relative ERP 85.1% of peak 60°: 0.4 dB attenuation; relative ERP 91.2% of peak 70°: 0 dB attenuation; relative ERP 100% of peak 80°: 0 dB attenuation; relative ERP 100% of peak 90°: 0 dB attenuation; relative ERP 100% of peak 100°: 0.3 dB attenuation; relative ERP 93.3% of peak 110°: 0.5 dB attenuation; relative ERP 89.1% of peak 120°: 0.8 dB attenuation; relative ERP 83.2% of peak 130°: 1 dB attenuation; relative ERP 79.4% of peak 140°: 0.8 dB attenuation; relative ERP 83.2% of peak 150°: 0.5 dB attenuation; relative ERP 89.1% of peak 160°: 0.2 dB attenuation; relative ERP 95.5% of peak 170°: 0 dB attenuation; relative ERP 100% of peak 180°: 0 dB attenuation; relative ERP 100% of peak 190°: 0 dB attenuation; relative ERP 100% of peak 200°: 0.4 dB attenuation; relative ERP 91.2% of peak 210°: 0.8 dB attenuation; relative ERP 83.2% of peak 220°: 1.3 dB attenuation; relative ERP 74.1% of peak 230°: 2 dB attenuation; relative ERP 63.1% of peak 240°: 3 dB attenuation; relative ERP 50.1% of peak 250°: 3.8 dB attenuation; relative ERP 41.7% of peak 260°: 4.9 dB attenuation; relative ERP 32.4% of peak 270°: 6 dB attenuation; relative ERP 25.1% of peak 280°: 6.4 dB attenuation; relative ERP 22.9% of peak 290°: 6.7 dB attenuation; relative ERP 21.4% of peak 300°: 7 dB attenuation; relative ERP 20% of peak 310°: 7 dB attenuation; relative ERP 20% of peak 320°: 7 dB attenuation; relative ERP 20% of peak 330°: 6.7 dB attenuation; relative ERP 21.4% of peak 340°: 6.4 dB attenuation; relative ERP 22.9% of peak 350°: 6 dB attenuation; relative ERP 25.1% 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): 70°, 80°, 90°, 170°, 180°, 190° at 0 dB attenuation.

Deepest restriction(s): 300°, 310°, 320° at 7 dB attenuation.

Parameters

Date 29/05/2025
Ensemble Portsmouth small scale
Licence DS105146
mb21 Fort Widley
Ensemble Area Portsmouth
EID C1CD
Transmitter Area Portsmouth
Site Fort Widley
Freq. 197.648
Block 8B
TII Main Id (Hex) 02
TII Sub Id (Hex) 08
NGR SU65730646
Longitude/Latitude 001W04 03 50N51 14
Lat 50.85393
Long -1.067587
Site Height 102
In-Use Ae Ht 28
In-Use ERP Total 193.8 W
Dir Max ERP

Services listed for this ensemble row

TypeService labelSIdLSN
Audio Flash CADA
Audio Slack City CAD4
Audio Express FM CA94
Audio Radio Caroline C6D6
Audio Gaydio C9C9
Audio Atmosphere.Radio C7D5
Audio Starpoint Soul C1D5
Audio Passion Radio C4E7
Audio 80s Rhythm C5E7 217
Audio Nation 60s CCf1 214
Audio Nation 70s C2ED 213
Audio Nation Rocks C2FB 215
Audio Victory CEF1
Audio OUTREACH DANCE C1C5
Audio OUTREACH RADIO C3EE
Audio 60s CAD3
Audio Fun Kids CFD8
Audio Voice FM Music CB97
Audio Tomorrowland OWR C2C3
Audio Cyndicut Radio C250
Audio Unity101 C891
Audio OUTREACH CLASSIC C144 223
Audio Angel Gold C55C
Audio Soleil Radio C8F0

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°
4.93.8321.20.70.40000.30.50.810.80.50.20000.40.81.3233.84.966.46.77776.76.46