Blunsdon - Ofcom TX Visualiser

← Back to FM/VHF search · Map this site name · Offline SVG map

Blunsdon

Swindon · BBC Wiltshire (FM) · 103.6 MHz

Antenna pattern

In-use horizontal pattern

ERP field: In-UseERP/HP = 250 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 26 dB attenuation; relative ERP 0.3% of peak 10°: 26 dB attenuation; relative ERP 0.3% of peak 20°: 30 dB attenuation; relative ERP 0.1% of peak 30°: 30 dB attenuation; relative ERP 0.1% of peak 40°: 30 dB attenuation; relative ERP 0.1% of peak 50°: 30 dB attenuation; relative ERP 0.1% of peak 60°: 17 dB attenuation; relative ERP 2% of peak 70°: 13 dB attenuation; relative ERP 5% of peak 80°: 9 dB attenuation; relative ERP 12.6% of peak 90°: 6 dB attenuation; relative ERP 25.1% of peak 100°: 4 dB attenuation; relative ERP 39.8% of peak 110°: 2 dB attenuation; relative ERP 63.1% of peak 120°: 1 dB attenuation; relative ERP 79.4% of peak 130°: 0 dB attenuation; relative ERP 100% of peak 140°: 0 dB attenuation; relative ERP 100% of peak 150°: 2 dB attenuation; relative ERP 63.1% of peak 160°: 2 dB attenuation; relative ERP 63.1% of peak 170°: 1 dB attenuation; relative ERP 79.4% of peak 180°: 0 dB attenuation; relative ERP 100% of peak 190°: 1 dB attenuation; relative ERP 79.4% of peak 200°: 2 dB attenuation; relative ERP 63.1% of peak 210°: 1 dB attenuation; relative ERP 79.4% of peak 220°: 0 dB attenuation; relative ERP 100% of peak 230°: 0 dB attenuation; relative ERP 100% of peak 240°: 1 dB attenuation; relative ERP 79.4% of peak 250°: 2 dB attenuation; relative ERP 63.1% of peak 260°: 4 dB attenuation; relative ERP 39.8% of peak 270°: 6 dB attenuation; relative ERP 25.1% of peak 280°: 8 dB attenuation; relative ERP 15.8% of peak 290°: 12 dB attenuation; relative ERP 6.3% of peak 300°: 17 dB attenuation; relative ERP 2% of peak 310°: 26 dB attenuation; relative ERP 0.3% of peak 320°: 30 dB attenuation; relative ERP 0.1% of peak 330°: 26 dB attenuation; relative ERP 0.3% of peak 340°: 26 dB attenuation; relative ERP 0.3% of peak 350°: 26 dB attenuation; relative ERP 0.3% 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): 130°, 140°, 180°, 220°, 230° at 0 dB attenuation.

Deepest restriction(s): 20°, 30°, 40°, 50°, 320° at 30 dB attenuation.

In-use vertical pattern

ERP field: In-Use ERP/VP = 250 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 10 dB attenuation; relative ERP 10% of peak 10°: 10 dB attenuation; relative ERP 10% of peak 20°: 10 dB attenuation; relative ERP 10% of peak 30°: 9 dB attenuation; relative ERP 12.6% of peak 40°: 8 dB attenuation; relative ERP 15.8% of peak 50°: 7 dB attenuation; relative ERP 20% of peak 60°: 5 dB attenuation; relative ERP 31.6% of peak 70°: 3 dB attenuation; relative ERP 50.1% of peak 80°: 2 dB attenuation; relative ERP 63.1% of peak 90°: 1 dB attenuation; relative ERP 79.4% 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°: 1 dB attenuation; relative ERP 79.4% of peak 160°: 1 dB attenuation; relative ERP 79.4% of peak 170°: 1 dB attenuation; relative ERP 79.4% of peak 180°: 1 dB attenuation; relative ERP 79.4% of peak 190°: 1 dB attenuation; relative ERP 79.4% of peak 200°: 1 dB attenuation; relative ERP 79.4% of peak 210°: 1 dB attenuation; relative ERP 79.4% of peak 220°: 0 dB attenuation; relative ERP 100% of peak 230°: 0 dB attenuation; relative ERP 100% of peak 240°: 0 dB attenuation; relative ERP 100% of peak 250°: 0 dB attenuation; relative ERP 100% of peak 260°: 0 dB attenuation; relative ERP 100% of peak 270°: 1 dB attenuation; relative ERP 79.4% of peak 280°: 2 dB attenuation; relative ERP 63.1% of peak 290°: 3 dB attenuation; relative ERP 50.1% of peak 300°: 5 dB attenuation; relative ERP 31.6% of peak 310°: 7 dB attenuation; relative ERP 20% of peak 320°: 8 dB attenuation; relative ERP 15.8% of peak 330°: 9 dB attenuation; relative ERP 12.6% of peak 340°: 10 dB attenuation; relative ERP 10% of peak 350°: 10 dB attenuation; relative ERP 10% 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): 100°, 110°, 120°, 130°, 140°, 220°, 230°, 240°, 250°, 260° at 0 dB attenuation.

Deepest restriction(s): 0°, 10°, 20°, 340°, 350° at 10 dB attenuation.

Parameters

Date 01/01/1900
Station BBC Wiltshire (FM)
Area Swindon
Site Blunsdon
Licence BBC000047
mb21 Blunsdon
Frequency 103.6
NGR SU14339004
RDS PS BBCWltSn
RDS PI C713
Switched PI
TP/TA
TMC
Lat 51.609014
Long -1.794462
Site Ht 147
In-Use Aerial Ht 44
In-UseERP/HP 250 W
In-Use ERP/VP 250 W
Max Dir 180
Licensed ERP/HP 1 kW
Licensed ERP/VP 1 kW

Pattern values

In-use 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°
262630303030171396421002210121001246812172630262626

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°
10101098753210000011111110000012357891010