Oldham & Rochdale small-scale

DAB ensemble · block 9B · 3 transmitters

Ensemble identifier: C1FB
Block: 9B
Frequency: 204.640 MHz
Licence: DS104326
Area: Oldham & Rochdale
Services: 9 radio

On the map

Where Oldham & Rochdale small-scale 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.

What it carries

Crescent RadioHeritage RadioOldham Com RadioMom's SpaghettiBuzz MCRRoch ValleyRadioGaydioAtlantic 252Happly Radio

Transmitters

3 transmitters, strongest first. TII is the transmitter identifier a receiver can report, which is how you tell which one you are actually hearing in a single-frequency network.
Transmitter	Nation	Block	Frequency	ERP	Height	Area	TII
Oldham - Rountree House	England	9B	204.640 MHz	70 W	56 m	Oldham	2B/05
Oldham - Hathershaw	England	9B	204.640 MHz	50 W	18 m	Oldham	2B/03
Rochdale - Roch Valley Radio Studio	England	9B	204.640 MHz	33 W	12 m	Rochdale	2B/01

Radiation pattern

Its strongest transmitter with a published pattern, Oldham - Rountree House. Other transmitters of this ensemble may shape their signal differently.

Radiates most strongly toward the north-east (40°), 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.