Smooth Radio

FM · DAB

On the map

Where Smooth Radio is radiated from — 50 transmitters [V], Ofcom's published positions. This says nothing about how far the signal reaches; it is not a coverage map.

FM

16 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
Black Hill	Scotland	105.2 MHz	15.0 kW	15.0 kW	161 m	Smooth__	C4A2	Glasgow
Sutton Coldfield	England	105.7 MHz	5.5 kW	5.5 kW	159 m	Smooth__	C5A2	West Midlands
Waltham	England	106.6 MHz	4.6 kW	6.2 kW	200 m	Smooth__	C3A2	East Midlands
Burnhope	England	97.5 MHz	4.5 kW	4.5 kW	205 m	Smooth__	C3A0	North East England
Eston Nab	England	107.7 MHz	2.5 kW	2.5 kW	33 m	Smooth__	C3A0	North East England
Winter Hill	England	100.4 MHz	2.5 kW	2.5 kW	190 m	Smooth__	C3A7	North West England
Croydon	England	102.2 MHz	2.0 kW	2.0 kW	135 m	Smooth__	C787	London
Geddington	England	107.4 MHz	—	200 W	46 m	Smooth__	C3A2	Kettering
Gunthorpe	England	106.8 MHz	100 W	100 W	79 m	Smooth__	C3A2	Peterborough
Kendal	England	100.1 MHz	100 W	100 W	44 m	Smooth	C6A7	Kendal
Keswick Forest	England	101.4 MHz	100 W	—	18 m	Smooth	C6A7	Kendal
Newton	England	96.4 MHz	100 W	100 W	25 m	Smooth__	C3A0	North East England
Drum Hill	England	101.4 MHz	75 W	125 W	27 m	Smooth__	C3A2	Derby
Fenham	England	107.5 MHz	—	50 W	45 m	Smooth__	C3A0	North East England
Windermere	England	100.8 MHz	25 W	100 W	22 m	Smooth	C6A7	Windermere
Irchester	England	97.2 MHz	15 W	100 W	30 m	Smooth__	C3A2	Wellingborough

DAB

The ensembles carrying this station. Every transmitter of an ensemble carries all of its services, so the transmitter list belongs on the ensemble's own page.
Ensemble	Block	EId	Transmitters	Broadcast as	Area
London 1	12C	C185	17	Smooth Radio	London
Edinburgh	12D	C18A	8	Smooth Radio	Edinburgh
Wolv'ton & Shrop	11B	C18B	7	Smooth Radio	Wolverhampton Shropshire
Derbyshire	10B	C1BD	4	Smooth Radio	Derbyshire

Radiation pattern

Black Hill 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 west (260°), 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: Smooth Radio in the Freeview line-up.