Arfon - Ofcom TX Visualiser

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Arfon

Caernarfon · Capital · 103 MHz

Historic names: Champion 103, Champion FM 103, Champion FM (licence AL000222)

Antenna pattern

In-use horizontal pattern

ERP field: In-UseERP/HP = 2.5 kW

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°: 8 dB attenuation; relative ERP 15.8% of peak 20°: 11 dB attenuation; relative ERP 7.9% of peak 30°: 12 dB attenuation; relative ERP 6.3% of peak 40°: 12 dB attenuation; relative ERP 6.3% of peak 50°: 14 dB attenuation; relative ERP 4% of peak 60°: 17 dB attenuation; relative ERP 2% of peak 70°: 18 dB attenuation; relative ERP 1.6% of peak 80°: 20 dB attenuation; relative ERP 1% of peak 90°: 20 dB attenuation; relative ERP 1% of peak 100°: 20 dB attenuation; relative ERP 1% of peak 110°: 15 dB attenuation; relative ERP 3.2% of peak 120°: 10 dB attenuation; relative ERP 10% of peak 130°: 8 dB attenuation; relative ERP 15.8% of peak 140°: 5 dB attenuation; relative ERP 31.6% of peak 150°: 3 dB attenuation; relative ERP 50.1% of peak 160°: 1.5 dB attenuation; relative ERP 70.8% of peak 170°: 0.5 dB attenuation; relative ERP 89.1% of peak 180°: 0 dB attenuation; relative ERP 100% of peak 190°: 0.5 dB attenuation; relative ERP 89.1% of peak 200°: 1.5 dB attenuation; relative ERP 70.8% of peak 210°: 3 dB attenuation; relative ERP 50.1% of peak 220°: 5 dB attenuation; relative ERP 31.6% of peak 230°: 8 dB attenuation; relative ERP 15.8% of peak 240°: 10 dB attenuation; relative ERP 10% of peak 250°: 15 dB attenuation; relative ERP 3.2% of peak 260°: 20 dB attenuation; relative ERP 1% of peak 270°: 20 dB attenuation; relative ERP 1% of peak 280°: 20 dB attenuation; relative ERP 1% of peak 290°: 18 dB attenuation; relative ERP 1.6% of peak 300°: 17 dB attenuation; relative ERP 2% of peak 310°: 14 dB attenuation; relative ERP 4% of peak 320°: 12 dB attenuation; relative ERP 6.3% of peak 330°: 12 dB attenuation; relative ERP 6.3% of peak 340°: 11 dB attenuation; relative ERP 7.9% of peak 350°: 8 dB attenuation; relative ERP 15.8% 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): 180° at 0 dB attenuation.

Deepest restriction(s): 80°, 90°, 100°, 260°, 270°, 280° at 20 dB attenuation.

In-use vertical pattern

ERP field: In-Use ERP/VP = 2.5 kW

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°: 8 dB attenuation; relative ERP 15.8% of peak 20°: 8 dB attenuation; relative ERP 15.8% of peak 30°: 8 dB attenuation; relative ERP 15.8% of peak 40°: 7 dB attenuation; relative ERP 20% of peak 50°: 7 dB attenuation; relative ERP 20% of peak 60°: 9 dB attenuation; relative ERP 12.6% of peak 70°: 20 dB attenuation; relative ERP 1% of peak 80°: 9 dB attenuation; relative ERP 12.6% of peak 90°: 6 dB attenuation; relative ERP 25.1% of peak 100°: 6 dB attenuation; relative ERP 25.1% of peak 110°: 6 dB attenuation; relative ERP 25.1% of peak 120°: 3 dB attenuation; relative ERP 50.1% of peak 130°: 2 dB attenuation; relative ERP 63.1% of peak 140°: 1.5 dB attenuation; relative ERP 70.8% of peak 150°: 1 dB attenuation; relative ERP 79.4% of peak 160°: 0.5 dB attenuation; relative ERP 89.1% of peak 170°: 0.5 dB attenuation; relative ERP 89.1% of peak 180°: 0 dB attenuation; relative ERP 100% of peak 190°: 0.5 dB attenuation; relative ERP 89.1% of peak 200°: 0.5 dB attenuation; relative ERP 89.1% of peak 210°: 1 dB attenuation; relative ERP 79.4% of peak 220°: 1.5 dB attenuation; relative ERP 70.8% of peak 230°: 2 dB attenuation; relative ERP 63.1% of peak 240°: 3 dB attenuation; relative ERP 50.1% of peak 250°: 6 dB attenuation; relative ERP 25.1% of peak 260°: 6 dB attenuation; relative ERP 25.1% of peak 270°: 6 dB attenuation; relative ERP 25.1% of peak 280°: 9 dB attenuation; relative ERP 12.6% of peak 290°: 20 dB attenuation; relative ERP 1% of peak 300°: 9 dB attenuation; relative ERP 12.6% of peak 310°: 7 dB attenuation; relative ERP 20% of peak 320°: 7 dB attenuation; relative ERP 20% of peak 330°: 8 dB attenuation; relative ERP 15.8% of peak 340°: 8 dB attenuation; relative ERP 15.8% of peak 350°: 8 dB attenuation; relative ERP 15.8% 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): 180° at 0 dB attenuation.

Deepest restriction(s): 70°, 290° at 20 dB attenuation.

Licensed horizontal pattern

ERP field: Licensed ERP/HP = 2.5 kW

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°: 8 dB attenuation; relative ERP 15.8% of peak 20°: 6 dB attenuation; relative ERP 25.1% of peak 30°: 6 dB attenuation; relative ERP 25.1% of peak 40°: 6 dB attenuation; relative ERP 25.1% of peak 50°: 6 dB attenuation; relative ERP 25.1% of peak 60°: 6 dB attenuation; relative ERP 25.1% of peak 70°: 6 dB attenuation; relative ERP 25.1% of peak 80°: 6 dB attenuation; relative ERP 25.1% of peak 90°: 6 dB attenuation; relative ERP 25.1% 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°: 0 dB attenuation; relative ERP 100% of peak 250°: 7 dB attenuation; relative ERP 20% of peak 260°: 7 dB attenuation; relative ERP 20% of peak 270°: 6 dB attenuation; relative ERP 25.1% of peak 280°: 6 dB attenuation; relative ERP 25.1% of peak 290°: 6 dB attenuation; relative ERP 25.1% of peak 300°: 6 dB attenuation; relative ERP 25.1% of peak 310°: 6 dB attenuation; relative ERP 25.1% of peak 320°: 6 dB attenuation; relative ERP 25.1% of peak 330°: 6 dB attenuation; relative ERP 25.1% of peak 340°: 6 dB attenuation; relative ERP 25.1% of peak 350°: 8 dB attenuation; relative ERP 15.8% 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°, 150°, 160°, 170°, 180°, 190°, 200°, 210°, 220°, 230°, 240° at 0 dB attenuation.

Deepest restriction(s): 0°, 10°, 350° at 8 dB attenuation.

Licensed vertical pattern

ERP field: Licensed ERP/VP = 2.5 kW

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°: 8 dB attenuation; relative ERP 15.8% of peak 20°: 6 dB attenuation; relative ERP 25.1% of peak 30°: 6 dB attenuation; relative ERP 25.1% of peak 40°: 6 dB attenuation; relative ERP 25.1% of peak 50°: 6 dB attenuation; relative ERP 25.1% of peak 60°: 6 dB attenuation; relative ERP 25.1% of peak 70°: 6 dB attenuation; relative ERP 25.1% of peak 80°: 6 dB attenuation; relative ERP 25.1% of peak 90°: 6 dB attenuation; relative ERP 25.1% 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°: 0 dB attenuation; relative ERP 100% of peak 250°: 7 dB attenuation; relative ERP 20% of peak 260°: 7 dB attenuation; relative ERP 20% of peak 270°: 6 dB attenuation; relative ERP 25.1% of peak 280°: 6 dB attenuation; relative ERP 25.1% of peak 290°: 6 dB attenuation; relative ERP 25.1% of peak 300°: 6 dB attenuation; relative ERP 25.1% of peak 310°: 6 dB attenuation; relative ERP 25.1% of peak 320°: 6 dB attenuation; relative ERP 25.1% of peak 330°: 6 dB attenuation; relative ERP 25.1% of peak 340°: 6 dB attenuation; relative ERP 25.1% of peak 350°: 8 dB attenuation; relative ERP 15.8% 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°, 150°, 160°, 170°, 180°, 190°, 200°, 210°, 220°, 230°, 240° at 0 dB attenuation.

Deepest restriction(s): 0°, 10°, 350° at 8 dB attenuation.

Parameters

Date 16/11/1998
Station Capital
Area Caernarfon
Site Arfon
Licence AL000222
mb21 Arfon
MCA map Open Ofcom MCA map
Frequency 103
NGR SH47604937
RDS PS Capital
RDS PI C373
Switched PI C473
TP/TA Y
TMC Y
Lat 53.019865
Long -4.273476
Site Ht 300
In-Use Aerial Ht 259
In-UseERP/HP 2.5 kW
In-Use ERP/VP 2.5 kW
Max Dir 170
Licensed ERP/HP 2.5 kW
Licensed ERP/VP 2.5 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°
8811121214171820202015108531.50.500.51.535810152020201817141212118

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°
8888779209666321.510.50.500.50.511.523666920977888

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°
886666666600000000000000077666666668

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°
886666666600000000000000077666666668