BBC Radio Lancashire

On the map

Where BBC Radio Lancashire is radiated from — 3 transmitters [V], Ofcom's published positions. This says nothing about how far the signal reaches; it is not a coverage map.

FM

3 FM transmitters, strongest first. ERP is published per polarisation; a dash means nothing is radiated in that plane.
Transmitter	Nation	Frequency	ERP (H)	ERP (V)	Height	RDS name	PI code	Area
Lancaster	England	104.5 MHz	1.0 kW	1.0 kW	68 m	BBC_Lanc	CA13	Lancashire
Winter Hill	England	103.9 MHz	900 W	900 W	90 m	BBC_Lanc	CA13	Lancashire
Hameldon Hill	England	95.5 MHz	800 W	800 W	59 m	BBC_Lanc	CA13	Burnley

Radiation pattern

Lancaster publishes the strongest FM signal for this station with a shape on record — where it is carried elsewhere too, this is not necessarily theirs.

Radiates most strongly toward the south (180°), as published by Ofcom.

More detail

Each ring is 10 dB of attenuation below the pattern's own peak; the outer rim is the peak itself and anything 30 dB down or deeper is drawn at the centre rather than off the edge of the chart, so a very deep null reads as “weak” and not as a hole in the picture. The shape says which direction radiates harder relative to the mast's own peak, not the absolute field strength there or how far it reaches — that is what the coverage map and the postcode lookup are for. Solid is horizontal polarisation, dashed is vertical.

Also published under this name: BBC Radio Lancashire in the Freeview line-up.