Channel Islands

DAB ensemble · block 12A · 3 transmitters

Ensemble identifier: C1CF
Block: 12A
Frequency: 223.936 MHz
Licence: DL103059
Area: Channel Islands
Services: 24 radio

On the map

Where Channel Islands 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

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
Les Platons	England	12A	223.936 MHz	2.0 kW	55 m	Jersey	10/01
Les Touillets	England	12A	223.936 MHz	500 W	42 m	Guernsey	11/02
FORT ALBERT	England	12A	223.936 MHz	200 W	10 m	Alderney	1F/01

Radiation pattern

Its strongest transmitter with a published pattern, Les Platons. Other transmitters of this ensemble may shape their signal differently.

Radiates most strongly toward the south (190°), 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.