Brockham Hill - Ofcom TX Visualiser

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

Brockham Hill

Alton · Greatest Hits Radio · 102 MHz

Historic names: The Breeze, Kestrel FM, Delta FM, Delta Radio (licence AL102702)

Antenna pattern

In-use horizontal pattern

ERP field: In-UseERP/HP = 50 W

30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 14 dB attenuation; relative ERP 4% of peak 10°: 15 dB attenuation; relative ERP 3.2% of peak 20°: 16 dB attenuation; relative ERP 2.5% of peak 30°: 18 dB attenuation; relative ERP 1.6% of peak 40°: 20 dB attenuation; relative ERP 1% of peak 50°: 20 dB attenuation; relative ERP 1% of peak 60°: 20 dB attenuation; relative ERP 1% of peak 70°: 14 dB attenuation; relative ERP 4% of peak 80°: 9 dB attenuation; relative ERP 12.6% of peak 90°: 6 dB attenuation; relative ERP 25.1% of peak 100°: 3.5 dB attenuation; relative ERP 44.7% of peak 110°: 2 dB attenuation; relative ERP 63.1% of peak 120°: 1 dB attenuation; relative ERP 79.4% of peak 130°: 0.25 dB attenuation; relative ERP 94.4% of peak 140°: 0 dB attenuation; relative ERP 100% of peak 150°: 0.25 dB attenuation; relative ERP 94.4% of peak 160°: 1 dB attenuation; relative ERP 79.4% of peak 170°: 2 dB attenuation; relative ERP 63.1% of peak 180°: 3.5 dB attenuation; relative ERP 44.7% of peak 190°: 6 dB attenuation; relative ERP 25.1% of peak 200°: 9 dB attenuation; relative ERP 12.6% of peak 210°: 14 dB attenuation; relative ERP 4% of peak 220°: 20 dB attenuation; relative ERP 1% of peak 230°: 20 dB attenuation; relative ERP 1% of peak 240°: 20 dB attenuation; relative ERP 1% of peak 250°: 18 dB attenuation; relative ERP 1.6% of peak 260°: 16 dB attenuation; relative ERP 2.5% of peak 270°: 15 dB attenuation; relative ERP 3.2% of peak 280°: 14 dB attenuation; relative ERP 4% of peak 290°: 12 dB attenuation; relative ERP 6.3% of peak 300°: 11 dB attenuation; relative ERP 7.9% of peak 310°: 10 dB attenuation; relative ERP 10% of peak 320°: 10 dB attenuation; relative ERP 10% of peak 330°: 10 dB attenuation; relative ERP 10% of peak 340°: 11 dB attenuation; relative ERP 7.9% of peak 350°: 12 dB attenuation; relative ERP 6.3% 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): 140° at 0 dB attenuation.

Deepest restriction(s): 40°, 50°, 60°, 220°, 230°, 240° at 20 dB attenuation.

In-use vertical pattern

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

30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 11 dB attenuation; relative ERP 7.9% of peak 10°: 10.5 dB attenuation; relative ERP 8.9% of peak 20°: 9 dB attenuation; relative ERP 12.6% of peak 30°: 8 dB attenuation; relative ERP 15.8% of peak 40°: 6 dB attenuation; relative ERP 25.1% of peak 50°: 4.5 dB attenuation; relative ERP 35.5% of peak 60°: 3 dB attenuation; relative ERP 50.1% of peak 70°: 2.25 dB attenuation; relative ERP 59.6% of peak 80°: 1.5 dB attenuation; relative ERP 70.8% of peak 90°: 1 dB attenuation; relative ERP 79.4% of peak 100°: 0.75 dB attenuation; relative ERP 84.1% of peak 110°: 0.25 dB attenuation; relative ERP 94.4% 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°: 0.25 dB attenuation; relative ERP 94.4% of peak 180°: 0.75 dB attenuation; relative ERP 84.1% of peak 190°: 1 dB attenuation; relative ERP 79.4% of peak 200°: 1.5 dB attenuation; relative ERP 70.8% of peak 210°: 2.25 dB attenuation; relative ERP 59.6% of peak 220°: 3 dB attenuation; relative ERP 50.1% of peak 230°: 4.5 dB attenuation; relative ERP 35.5% of peak 240°: 6 dB attenuation; relative ERP 25.1% of peak 250°: 8 dB attenuation; relative ERP 15.8% of peak 260°: 9 dB attenuation; relative ERP 12.6% of peak 270°: 10.5 dB attenuation; relative ERP 8.9% of peak 280°: 11 dB attenuation; relative ERP 7.9% of peak 290°: 10.5 dB attenuation; relative ERP 8.9% of peak 300°: 10 dB attenuation; relative ERP 10% of peak 310°: 10 dB attenuation; relative ERP 10% of peak 320°: 10 dB attenuation; relative ERP 10% of peak 330°: 10 dB attenuation; relative ERP 10% of peak 340°: 10 dB attenuation; relative ERP 10% of peak 350°: 10.5 dB attenuation; relative ERP 8.9% 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): 120°, 130°, 140°, 150°, 160° at 0 dB attenuation.

Deepest restriction(s): 0°, 280° at 11 dB attenuation.

Licensed horizontal pattern

ERP field: Licensed ERP/HP = 50 W

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°: 0 dB attenuation; relative ERP 100% of peak 20°: 0 dB attenuation; relative ERP 100% of peak 30°: 0 dB attenuation; relative ERP 100% of peak 40°: 0 dB attenuation; relative ERP 100% of peak 50°: 0 dB attenuation; relative ERP 100% of peak 60°: 0 dB attenuation; relative ERP 100% 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°: 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 dB attenuation; relative ERP 100% of peak 210°: 0 dB attenuation; relative ERP 100% of peak 220°: 0 dB attenuation; relative ERP 100% of peak 230°: 0 dB attenuation; relative ERP 100% of peak 240°: 6 dB attenuation; relative ERP 25.1% of peak 250°: 9 dB attenuation; relative ERP 12.6% of peak 260°: 9 dB attenuation; relative ERP 12.6% of peak 270°: 9 dB attenuation; relative ERP 12.6% of peak 280°: 6 dB attenuation; relative ERP 25.1% of peak 290°: 0 dB attenuation; relative ERP 100% of peak 300°: 0 dB attenuation; relative ERP 100% of peak 310°: 0 dB attenuation; relative ERP 100% 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°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, 180°, 190°, 200°, 210°, 220°, 230°, 290°, 300°, 310°, 320°, 330°, 340°, 350° at 0 dB attenuation.

Deepest restriction(s): 250°, 260°, 270° at 9 dB attenuation.

Licensed vertical pattern

ERP field: Licensed ERP/VP = 50 W

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°: 0 dB attenuation; relative ERP 100% of peak 20°: 0 dB attenuation; relative ERP 100% of peak 30°: 0 dB attenuation; relative ERP 100% of peak 40°: 0 dB attenuation; relative ERP 100% of peak 50°: 0 dB attenuation; relative ERP 100% of peak 60°: 0 dB attenuation; relative ERP 100% 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°: 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 dB attenuation; relative ERP 100% of peak 210°: 0 dB attenuation; relative ERP 100% of peak 220°: 0 dB attenuation; relative ERP 100% of peak 230°: 0 dB attenuation; relative ERP 100% of peak 240°: 6 dB attenuation; relative ERP 25.1% of peak 250°: 9 dB attenuation; relative ERP 12.6% of peak 260°: 9 dB attenuation; relative ERP 12.6% of peak 270°: 9 dB attenuation; relative ERP 12.6% of peak 280°: 6 dB attenuation; relative ERP 25.1% of peak 290°: 0 dB attenuation; relative ERP 100% of peak 300°: 0 dB attenuation; relative ERP 100% of peak 310°: 0 dB attenuation; relative ERP 100% 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°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, 180°, 190°, 200°, 210°, 220°, 230°, 290°, 300°, 310°, 320°, 330°, 340°, 350° at 0 dB attenuation.

Deepest restriction(s): 250°, 260°, 270° at 9 dB attenuation.

Parameters

Date 08/05/2001
Station Greatest Hits Radio
Area Alton
Site Brockham Hill
Licence AL102702
mb21 Brockham Hill
MCA map Open Ofcom MCA map
Frequency 102
NGR SU72234283
RDS PS GRT_HITS
RDS PI C3BA
Switched PI CABA
TP/TA Y
TMC
Lat 51.18015
Long -0.968029
Site Ht 213
In-Use Aerial Ht 28
In-UseERP/HP 50 W
In-Use ERP/VP 50 W
Max Dir 140
Licensed ERP/HP 50 W
Licensed ERP/VP 50 W

Pattern values

In-use horizontal pattern

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°
1415161820202014963.5210.2500.25123.569142020201816151412111010101112

In-use vertical pattern

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°
1110.59864.532.251.510.750.25000000.250.7511.52.2534.568910.51110.5101010101010.5

Licensed horizontal pattern

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°
000000000000000000000000699960000000

Licensed vertical pattern

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°
000000000000000000000000699960000000