Betws Y Coed - Ofcom TX Visualiser

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

Betws Y Coed

Snowdonia · BBC Radio 4 (FM) · 104.9 MHz

Antenna pattern

In-use horizontal pattern

ERP field: In-UseERP/HP = 25 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 2 dB attenuation; relative ERP 63.1% of peak 10°: 4 dB attenuation; relative ERP 39.8% of peak 20°: 6 dB attenuation; relative ERP 25.1% of peak 30°: 9 dB attenuation; relative ERP 12.6% of peak 40°: 12 dB attenuation; relative ERP 6.3% of peak 50°: 20 dB attenuation; relative ERP 1% of peak 60°: 25 dB attenuation; relative ERP 0.3% of peak 70°: 25 dB attenuation; relative ERP 0.3% of peak 80°: 18 dB attenuation; relative ERP 1.6% of peak 90°: 16 dB attenuation; relative ERP 2.5% of peak 100°: 14 dB attenuation; relative ERP 4% of peak 110°: 18 dB attenuation; relative ERP 1.6% of peak 120°: 25 dB attenuation; relative ERP 0.3% of peak 130°: 20 dB attenuation; relative ERP 1% of peak 140°: 18 dB attenuation; relative ERP 1.6% of peak 150°: 16 dB attenuation; relative ERP 2.5% of peak 160°: 16 dB attenuation; relative ERP 2.5% of peak 170°: 12 dB attenuation; relative ERP 6.3% of peak 180°: 7 dB attenuation; relative ERP 20% of peak 190°: 4 dB attenuation; relative ERP 39.8% of peak 200°: 2 dB attenuation; relative ERP 63.1% of peak 210°: 2 dB attenuation; relative ERP 63.1% of peak 220°: 3 dB attenuation; relative ERP 50.1% of peak 230°: 1 dB attenuation; relative ERP 79.4% of peak 240°: 0 dB attenuation; relative ERP 100% of peak 250°: 1 dB attenuation; relative ERP 79.4% of peak 260°: 2 dB attenuation; relative ERP 63.1% of peak 270°: 2 dB attenuation; relative ERP 63.1% of peak 280°: 3 dB attenuation; relative ERP 50.1% of peak 290°: 3 dB attenuation; relative ERP 50.1% of peak 300°: 3 dB attenuation; relative ERP 50.1% of peak 310°: 1 dB attenuation; relative ERP 79.4% 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°: 1 dB attenuation; relative ERP 79.4% 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): 240°, 320°, 330°, 340° at 0 dB attenuation.

Deepest restriction(s): 60°, 70°, 120° at 25 dB attenuation.

In-use vertical pattern

ERP field: In-Use ERP/VP = 25 W

0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° N E S W 0°: 2 dB attenuation; relative ERP 63.1% of peak 10°: 4 dB attenuation; relative ERP 39.8% of peak 20°: 6 dB attenuation; relative ERP 25.1% of peak 30°: 9 dB attenuation; relative ERP 12.6% of peak 40°: 12 dB attenuation; relative ERP 6.3% of peak 50°: 20 dB attenuation; relative ERP 1% of peak 60°: 25 dB attenuation; relative ERP 0.3% of peak 70°: 25 dB attenuation; relative ERP 0.3% of peak 80°: 18 dB attenuation; relative ERP 1.6% of peak 90°: 16 dB attenuation; relative ERP 2.5% of peak 100°: 14 dB attenuation; relative ERP 4% of peak 110°: 18 dB attenuation; relative ERP 1.6% of peak 120°: 25 dB attenuation; relative ERP 0.3% of peak 130°: 20 dB attenuation; relative ERP 1% of peak 140°: 18 dB attenuation; relative ERP 1.6% of peak 150°: 16 dB attenuation; relative ERP 2.5% of peak 160°: 16 dB attenuation; relative ERP 2.5% of peak 170°: 12 dB attenuation; relative ERP 6.3% of peak 180°: 7 dB attenuation; relative ERP 20% of peak 190°: 4 dB attenuation; relative ERP 39.8% of peak 200°: 2 dB attenuation; relative ERP 63.1% of peak 210°: 2 dB attenuation; relative ERP 63.1% of peak 220°: 3 dB attenuation; relative ERP 50.1% of peak 230°: 1 dB attenuation; relative ERP 79.4% of peak 240°: 0 dB attenuation; relative ERP 100% of peak 250°: 1 dB attenuation; relative ERP 79.4% of peak 260°: 2 dB attenuation; relative ERP 63.1% of peak 270°: 2 dB attenuation; relative ERP 63.1% of peak 280°: 3 dB attenuation; relative ERP 50.1% of peak 290°: 3 dB attenuation; relative ERP 50.1% of peak 300°: 3 dB attenuation; relative ERP 50.1% of peak 310°: 1 dB attenuation; relative ERP 79.4% 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°: 1 dB attenuation; relative ERP 79.4% 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): 240°, 320°, 330°, 340° at 0 dB attenuation.

Deepest restriction(s): 60°, 70°, 120° at 25 dB attenuation.

Licensed horizontal pattern

ERP field: Licensed ERP/HP = 25 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°: 1 dB attenuation; relative ERP 79.4% of peak 40°: 2 dB attenuation; relative ERP 63.1% of peak 50°: 4 dB attenuation; relative ERP 39.8% 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°: 6 dB attenuation; relative ERP 25.1% of peak 110°: 6 dB attenuation; relative ERP 25.1% of peak 120°: 6 dB attenuation; relative ERP 25.1% of peak 130°: 6 dB attenuation; relative ERP 25.1% of peak 140°: 6 dB attenuation; relative ERP 25.1% of peak 150°: 4 dB attenuation; relative ERP 39.8% 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°: 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°: 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°, 180°, 190°, 200°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 310°, 320°, 330°, 340°, 350° at 0 dB attenuation.

Deepest restriction(s): 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140° at 6 dB attenuation.

Licensed vertical pattern

ERP field: Licensed ERP/VP = 25 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°: 1 dB attenuation; relative ERP 79.4% of peak 40°: 2 dB attenuation; relative ERP 63.1% of peak 50°: 4 dB attenuation; relative ERP 39.8% 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°: 6 dB attenuation; relative ERP 25.1% of peak 110°: 6 dB attenuation; relative ERP 25.1% of peak 120°: 6 dB attenuation; relative ERP 25.1% of peak 130°: 6 dB attenuation; relative ERP 25.1% of peak 140°: 6 dB attenuation; relative ERP 25.1% of peak 150°: 4 dB attenuation; relative ERP 39.8% 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°: 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°: 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°, 180°, 190°, 200°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 310°, 320°, 330°, 340°, 350° at 0 dB attenuation.

Deepest restriction(s): 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140° at 6 dB attenuation.

Parameters

Date 01/01/1900
Station BBC Radio 4 (FM)
Area Snowdonia
Site Betws Y Coed
Licence BBC000004
mb21 Betws-y-Coed
Frequency 104.9
NGR SH82475824
RDS PS _BBC_R4_
RDS PI C204
Switched PI
TP/TA
TMC
Lat 53.108361
Long -3.757171
Site Ht 303
In-Use Aerial Ht 40
In-UseERP/HP 25 W
In-Use ERP/VP 25 W
Max Dir
Licensed ERP/HP 25 W
Licensed ERP/VP 25 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°
24691220252518161418252018161612742231012233310001

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°
24691220252518161418252018161612742231012233310001

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°
000124666666666421000000000000000000

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°
000124666666666421000000000000000000