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Start Point

South West England · BBC Radio 5 live · 693 kHz

Antenna pattern

In-use MF pattern

ERP field: In-Use EMRP (kW) = 80 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°: 1 dB attenuation; relative ERP 79.4% of peak 30°: 2 dB attenuation; relative ERP 63.1% of peak 40°: 3 dB attenuation; relative ERP 50.1% of peak 50°: 5 dB attenuation; relative ERP 31.6% of peak 60°: 8 dB attenuation; relative ERP 15.8% of peak 70°: 13 dB attenuation; relative ERP 5% of peak 80°: 18 dB attenuation; relative ERP 1.6% of peak 90°: 25 dB attenuation; relative ERP 0.3% of peak 100°: 18 dB attenuation; relative ERP 1.6% of peak 110°: 13 dB attenuation; relative ERP 5% of peak 120°: 11 dB attenuation; relative ERP 7.9% of peak 130°: 8 dB attenuation; relative ERP 15.8% of peak 140°: 7 dB attenuation; relative ERP 20% of peak 150°: 6 dB attenuation; relative ERP 25.1% of peak 160°: 6 dB attenuation; relative ERP 25.1% of peak 170°: 6 dB attenuation; relative ERP 25.1% of peak 180°: 7 dB attenuation; relative ERP 20% of peak 190°: 8 dB attenuation; relative ERP 15.8% of peak 200°: 11 dB attenuation; relative ERP 7.9% of peak 210°: 13 dB attenuation; relative ERP 5% of peak 220°: 18 dB attenuation; relative ERP 1.6% of peak 230°: 25 dB attenuation; relative ERP 0.3% of peak 240°: 18 dB attenuation; relative ERP 1.6% of peak 250°: 11 dB attenuation; relative ERP 7.9% of peak 260°: 8 dB attenuation; relative ERP 15.8% of peak 270°: 5 dB attenuation; relative ERP 31.6% of peak 280°: 3 dB attenuation; relative ERP 50.1% of peak 290°: 2 dB attenuation; relative ERP 63.1% of peak 300°: 1 dB attenuation; relative ERP 79.4% 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): 90°, 230° at 25 dB attenuation.

Licensed MF pattern

ERP field: Licensed EMRP = 158 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°: 1 dB attenuation; relative ERP 79.4% of peak 30°: 2 dB attenuation; relative ERP 63.1% of peak 40°: 3 dB attenuation; relative ERP 50.1% of peak 50°: 5 dB attenuation; relative ERP 31.6% of peak 60°: 8 dB attenuation; relative ERP 15.8% of peak 70°: 13 dB attenuation; relative ERP 5% of peak 80°: 18 dB attenuation; relative ERP 1.6% of peak 90°: 25 dB attenuation; relative ERP 0.3% of peak 100°: 18 dB attenuation; relative ERP 1.6% of peak 110°: 13 dB attenuation; relative ERP 5% of peak 120°: 11 dB attenuation; relative ERP 7.9% of peak 130°: 8 dB attenuation; relative ERP 15.8% of peak 140°: 7 dB attenuation; relative ERP 20% of peak 150°: 6 dB attenuation; relative ERP 25.1% of peak 160°: 6 dB attenuation; relative ERP 25.1% of peak 170°: 6 dB attenuation; relative ERP 25.1% of peak 180°: 7 dB attenuation; relative ERP 20% of peak 190°: 8 dB attenuation; relative ERP 15.8% of peak 200°: 11 dB attenuation; relative ERP 7.9% of peak 210°: 13 dB attenuation; relative ERP 5% of peak 220°: 18 dB attenuation; relative ERP 1.6% of peak 230°: 25 dB attenuation; relative ERP 0.3% of peak 240°: 18 dB attenuation; relative ERP 1.6% of peak 250°: 13 dB attenuation; relative ERP 5% of peak 260°: 8 dB attenuation; relative ERP 15.8% of peak 270°: 5 dB attenuation; relative ERP 31.6% of peak 280°: 3 dB attenuation; relative ERP 50.1% of peak 290°: 2 dB attenuation; relative ERP 63.1% of peak 300°: 1 dB attenuation; relative ERP 79.4% 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): 90°, 230° at 25 dB attenuation.

Parameters

Date 01/01/1900
Station BBC Radio 5 live
Area South West England
Site Start Point
Licence BBC000005
mb21 Start Point
Frequency 693
NGR SX81413781
Lat 50.228369
Long -3.663965
Site Ht 122
In-Use Aerial Ht 137
In-Use EMRP (kW) 80 kW
Max Dir
Licensed Aerial Ht 137
Licensed EMRP 158 kW

Pattern values

In-use MF 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°
011235813182518131187666781113182518118532110000

Licensed MF 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°
011235813182518131187666781113182518138532110000