Church Green - Ofcom TX Visualiser

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Church Green

Chelmsford · Radio Essex · 107.7 MHz

Historic names: Chelmsford Radio, Chelmsford Radio 107.7, Dream 107.7, Chelmer FM (licence AL000221)

Antenna pattern

In-use horizontal pattern

ERP field: In-UseERP/HP = 68.7 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 11.4 dB attenuation; relative ERP 7.2% of peak 10°: 17.4 dB attenuation; relative ERP 1.8% of peak 20°: 23.4 dB attenuation; relative ERP 0.5% of peak 30°: 17.4 dB attenuation; relative ERP 1.8% of peak 40°: 9.4 dB attenuation; relative ERP 11.5% of peak 50°: 6.4 dB attenuation; relative ERP 22.9% of peak 60°: 5.4 dB attenuation; relative ERP 28.8% of peak 70°: 3.9 dB attenuation; relative ERP 40.7% of peak 80°: 2.6 dB attenuation; relative ERP 55% of peak 90°: 1.9 dB attenuation; relative ERP 64.6% of peak 100°: 1.4 dB attenuation; relative ERP 72.4% of peak 110°: 1.4 dB attenuation; relative ERP 72.4% of peak 120°: 1.9 dB attenuation; relative ERP 64.6% of peak 130°: 2.4 dB attenuation; relative ERP 57.5% of peak 140°: 3.9 dB attenuation; relative ERP 40.7% of peak 150°: 4.4 dB attenuation; relative ERP 36.3% of peak 160°: 5.4 dB attenuation; relative ERP 28.8% of peak 170°: 7.4 dB attenuation; relative ERP 18.2% of peak 180°: 9.4 dB attenuation; relative ERP 11.5% of peak 190°: 17.4 dB attenuation; relative ERP 1.8% of peak 200°: 20.4 dB attenuation; relative ERP 0.9% of peak 210°: 17.4 dB attenuation; relative ERP 1.8% of peak 220°: 9.4 dB attenuation; relative ERP 11.5% of peak 230°: 6.4 dB attenuation; relative ERP 22.9% of peak 240°: 4.4 dB attenuation; relative ERP 36.3% of peak 250°: 1.9 dB attenuation; relative ERP 64.6% of peak 260°: 0.4 dB attenuation; relative ERP 91.2% of peak 270°: 0 dB attenuation; relative ERP 100% of peak 280°: 0.4 dB attenuation; relative ERP 91.2% of peak 290°: 1.9 dB attenuation; relative ERP 64.6% of peak 300°: 2.4 dB attenuation; relative ERP 57.5% of peak 310°: 2.9 dB attenuation; relative ERP 51.3% of peak 320°: 3.4 dB attenuation; relative ERP 45.7% of peak 330°: 4.6 dB attenuation; relative ERP 34.7% of peak 340°: 6.6 dB attenuation; relative ERP 21.9% of peak 350°: 9.4 dB attenuation; relative ERP 11.5% 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): 270° at 0 dB attenuation.

Deepest restriction(s): 20° at 23.4 dB attenuation.

In-use vertical pattern

ERP field: In-Use ERP/VP = 325 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 0.9 dB attenuation; relative ERP 81.3% of peak 10°: 0.8 dB attenuation; relative ERP 83.2% of peak 20°: 0.9 dB attenuation; relative ERP 81.3% of peak 30°: 1 dB attenuation; relative ERP 79.4% of peak 40°: 1.4 dB attenuation; relative ERP 72.4% of peak 50°: 2 dB attenuation; relative ERP 63.1% of peak 60°: 2.7 dB attenuation; relative ERP 53.7% of peak 70°: 3.4 dB attenuation; relative ERP 45.7% of peak 80°: 3.2 dB attenuation; relative ERP 47.9% of peak 90°: 2.6 dB attenuation; relative ERP 55% of peak 100°: 2.2 dB attenuation; relative ERP 60.3% of peak 110°: 2.3 dB attenuation; relative ERP 58.9% of peak 120°: 2.7 dB attenuation; relative ERP 53.7% of peak 130°: 3.1 dB attenuation; relative ERP 49% of peak 140°: 3.1 dB attenuation; relative ERP 49% of peak 150°: 3 dB attenuation; relative ERP 50.1% of peak 160°: 2.4 dB attenuation; relative ERP 57.5% of peak 170°: 1.6 dB attenuation; relative ERP 69.2% of peak 180°: 0.8 dB attenuation; relative ERP 83.2% of peak 190°: 0.2 dB attenuation; relative ERP 95.5% of peak 200°: 0 dB attenuation; relative ERP 100% of peak 210°: 0.3 dB attenuation; relative ERP 93.3% of peak 220°: 1.2 dB attenuation; relative ERP 75.9% of peak 230°: 2.5 dB attenuation; relative ERP 56.2% of peak 240°: 3.7 dB attenuation; relative ERP 42.7% of peak 250°: 3.7 dB attenuation; relative ERP 42.7% of peak 260°: 3 dB attenuation; relative ERP 50.1% of peak 270°: 2.7 dB attenuation; relative ERP 53.7% of peak 280°: 2.8 dB attenuation; relative ERP 52.5% of peak 290°: 3.1 dB attenuation; relative ERP 49% of peak 300°: 3.3 dB attenuation; relative ERP 46.8% of peak 310°: 3.3 dB attenuation; relative ERP 46.8% of peak 320°: 3.2 dB attenuation; relative ERP 47.9% of peak 330°: 2.8 dB attenuation; relative ERP 52.5% of peak 340°: 2 dB attenuation; relative ERP 63.1% of peak 350°: 1.6 dB attenuation; relative ERP 69.2% 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): 200° at 0 dB attenuation.

Deepest restriction(s): 240°, 250° at 3.7 dB attenuation.

Licensed horizontal pattern

ERP field: Licensed ERP/HP = 200 W

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°: 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°: 3 dB attenuation; relative ERP 50.1% of peak 140°: 3 dB attenuation; relative ERP 50.1% 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°: 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°: 0 dB attenuation; relative ERP 100% of peak 280°: 0 dB attenuation; relative ERP 100% 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°: 2 dB attenuation; relative ERP 63.1% of peak 330°: 2 dB attenuation; relative ERP 63.1% of peak 340°: 2 dB attenuation; relative ERP 63.1% 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°, 150°, 160°, 170°, 180°, 190°, 200°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 310°, 350° at 0 dB attenuation.

Deepest restriction(s): 130°, 140° at 3 dB attenuation.

Licensed vertical pattern

ERP field: Licensed ERP/VP = 200 W

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°: 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°: 3 dB attenuation; relative ERP 50.1% of peak 140°: 3 dB attenuation; relative ERP 50.1% 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°: 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°: 0 dB attenuation; relative ERP 100% of peak 280°: 0 dB attenuation; relative ERP 100% 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°: 2 dB attenuation; relative ERP 63.1% of peak 330°: 2 dB attenuation; relative ERP 63.1% of peak 340°: 2 dB attenuation; relative ERP 63.1% 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°, 150°, 160°, 170°, 180°, 190°, 200°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 310°, 350° at 0 dB attenuation.

Deepest restriction(s): 130°, 140° at 3 dB attenuation.

Parameters

Date 01/01/1900
Station Radio Essex
Area Chelmsford
Site Church Green
Licence AL000221
mb21 Church Green
MCA map Open Ofcom MCA map
Frequency 107.7
NGR TL77930501
RDS PS Radio_SX
RDS PI C3A6
Switched PI C4A6
TP/TA
TMC
Lat 51.715594
Long 0.574257
Site Ht 110
In-Use Aerial Ht 30
In-UseERP/HP 68.7 W
In-Use ERP/VP 325 W
Max Dir
Licensed ERP/HP 200 W
Licensed ERP/VP 200 W

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°
11.417.423.417.49.46.45.43.92.61.91.41.41.92.43.94.45.47.49.417.420.417.49.46.44.41.90.400.41.92.42.93.44.66.69.4

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°
0.90.80.911.422.73.43.22.62.22.32.73.13.132.41.60.80.200.31.22.53.73.732.72.83.13.33.33.22.821.6

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°
000000000000033000000000000000002220

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°
000000000000033000000000000000002220