North Birmingham small-scale

DAB ensemble · block 9A · 4 transmitters

Ensemble identifier: C1C9
Block: 9A
Frequency: 202.928 MHz
Licence: DS103936
Area: North Birmingham
Services: 26 radio

On the map

Where North Birmingham small-scale 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.

What it carries

Transmitters

4 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
Birmingham - Barry Jackson Tower	England	9A	202.928 MHz	80 W	66 m	North Birmingham	13/13
Birmingham - Cheshunt House	England	9A	202.928 MHz	80 W	24 m	North Birmingham	13/04
Birmingham - Redway Court	England	9A	202.928 MHz	80 W	40 m	North Birmingham	13/06
Birmingham - Topcliffe Tower	England	9A	202.928 MHz	80 W	42 m	North Birmingham	13/15

Radiation pattern

Its strongest transmitter with a published pattern, Birmingham - Barry Jackson Tower. Other transmitters of this ensemble may shape their signal differently.

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.