BBC Radio Suffolk

On the map

Where BBC Radio Suffolk is radiated from — 4 transmitters [V], Ofcom's published positions. This says nothing about how far the signal reaches; it is not a coverage map.

FM

4 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
Manningtree	England	103.9 MHz	2.5 kW	2.5 kW	127 m	BBC_Suff	C712	Colchester and Ipswich
Aldeburgh	England	95.9 MHz	—	2.0 kW	40 m	BBC_Suff	C712	Suffolk Coast
Oulton	England	95.5 MHz	—	2.0 kW	40 m	BBC_Suff	C712	Suffolk
Great Barton	England	104.6 MHz	1.2 kW	700 W	46 m	BBC_Suff	C712	Bury St Edmunds

Radiation pattern

Manningtree 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 north (0°), 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 Suffolk in the Freeview line-up.