Westwood - Ofcom TX Visualiser

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Westwood

Trowbridge · BBC Radio 1 · 97.9 MHz

Antenna pattern

In-use vertical pattern

ERP field: In-Use ERP/VP = 50 W

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

Deepest restriction(s): 210°, 220° at 10 dB attenuation.

Licensed horizontal pattern

ERP field: Licensed ERP/HP = 50 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 5 dB attenuation; relative ERP 31.6% of peak 10°: 5 dB attenuation; relative ERP 31.6% of peak 20°: 5 dB attenuation; relative ERP 31.6% of peak 30°: 4 dB attenuation; relative ERP 39.8% of peak 40°: 3 dB attenuation; relative ERP 50.1% of peak 50°: 2 dB attenuation; relative ERP 63.1% of peak 60°: 1 dB attenuation; relative ERP 79.4% 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 dB attenuation; relative ERP 100% of peak 110°: 0 dB attenuation; relative ERP 100% of peak 120°: 0 dB attenuation; relative ERP 100% of peak 130°: 0 dB attenuation; relative ERP 100% of peak 140°: 0 dB attenuation; relative ERP 100% of peak 150°: 0 dB attenuation; relative ERP 100% of peak 160°: 0 dB attenuation; relative ERP 100% of peak 170°: 1 dB attenuation; relative ERP 79.4% of peak 180°: 2 dB attenuation; relative ERP 63.1% of peak 190°: 3 dB attenuation; relative ERP 50.1% of peak 200°: 4 dB attenuation; relative ERP 39.8% of peak 210°: 5 dB attenuation; relative ERP 31.6% of peak 220°: 5 dB attenuation; relative ERP 31.6% of peak 230°: 5 dB attenuation; relative ERP 31.6% of peak 240°: 5 dB attenuation; relative ERP 31.6% of peak 250°: 5 dB attenuation; relative ERP 31.6% of peak 260°: 5 dB attenuation; relative ERP 31.6% of peak 270°: 5 dB attenuation; relative ERP 31.6% of peak 280°: 5 dB attenuation; relative ERP 31.6% of peak 290°: 5 dB attenuation; relative ERP 31.6% of peak 300°: 5 dB attenuation; relative ERP 31.6% of peak 310°: 5 dB attenuation; relative ERP 31.6% of peak 320°: 5 dB attenuation; relative ERP 31.6% of peak 330°: 5 dB attenuation; relative ERP 31.6% of peak 340°: 5 dB attenuation; relative ERP 31.6% of peak 350°: 5 dB attenuation; relative ERP 31.6% 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°, 100°, 110°, 120°, 130°, 140°, 150°, 160° at 0 dB attenuation.

Deepest restriction(s): 0°, 10°, 20°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 310°, 320°, 330°, 340°, 350° at 5 dB attenuation.

Licensed vertical pattern

ERP field: Licensed ERP/VP = 50 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 5 dB attenuation; relative ERP 31.6% of peak 10°: 5 dB attenuation; relative ERP 31.6% of peak 20°: 5 dB attenuation; relative ERP 31.6% of peak 30°: 4 dB attenuation; relative ERP 39.8% of peak 40°: 3 dB attenuation; relative ERP 50.1% of peak 50°: 2 dB attenuation; relative ERP 63.1% of peak 60°: 1 dB attenuation; relative ERP 79.4% 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 dB attenuation; relative ERP 100% of peak 110°: 0 dB attenuation; relative ERP 100% of peak 120°: 0 dB attenuation; relative ERP 100% of peak 130°: 0 dB attenuation; relative ERP 100% of peak 140°: 0 dB attenuation; relative ERP 100% of peak 150°: 0 dB attenuation; relative ERP 100% of peak 160°: 0 dB attenuation; relative ERP 100% of peak 170°: 1 dB attenuation; relative ERP 79.4% of peak 180°: 2 dB attenuation; relative ERP 63.1% of peak 190°: 3 dB attenuation; relative ERP 50.1% of peak 200°: 4 dB attenuation; relative ERP 39.8% of peak 210°: 5 dB attenuation; relative ERP 31.6% of peak 220°: 5 dB attenuation; relative ERP 31.6% of peak 230°: 5 dB attenuation; relative ERP 31.6% of peak 240°: 5 dB attenuation; relative ERP 31.6% of peak 250°: 5 dB attenuation; relative ERP 31.6% of peak 260°: 5 dB attenuation; relative ERP 31.6% of peak 270°: 5 dB attenuation; relative ERP 31.6% of peak 280°: 5 dB attenuation; relative ERP 31.6% of peak 290°: 5 dB attenuation; relative ERP 31.6% of peak 300°: 5 dB attenuation; relative ERP 31.6% of peak 310°: 5 dB attenuation; relative ERP 31.6% of peak 320°: 5 dB attenuation; relative ERP 31.6% of peak 330°: 5 dB attenuation; relative ERP 31.6% of peak 340°: 5 dB attenuation; relative ERP 31.6% of peak 350°: 5 dB attenuation; relative ERP 31.6% 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°, 100°, 110°, 120°, 130°, 140°, 150°, 160° at 0 dB attenuation.

Deepest restriction(s): 0°, 10°, 20°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 310°, 320°, 330°, 340°, 350° at 5 dB attenuation.

Parameters

Date 01/01/1900
Station BBC Radio 1
Area Trowbridge
Site Westwood
Licence BBC000001
mb21 Westwood
Frequency 97.9
NGR ST81695978
RDS PS Radio_1_
RDS PI C201
Switched PI
TP/TA
TMC
Lat 51.336812
Long -2.264225
Site Ht 87
In-Use Aerial Ht 40
In-UseERP/HP 0 W
In-Use ERP/VP 50 W
Max Dir
Licensed ERP/HP 50 W
Licensed ERP/VP 50 W

Pattern values

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°
89987654321001235678910108777889988777

Licensed 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°
555432100000000001234555555555555555

Licensed 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°
555432100000000001234555555555555555