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Map of all FM, MW and LW transmitters

You can click on a transmitter group symbol to see all the masts in that county or area, or click on a single transmitter to see the coverage area. Due to the large number of radio transmitters, many have been grouped into counties or administrative areas for ease of viewing.

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What do the map symbols mean?

 FM/AM radio mast,  Transmitter group.

Saturday, 6 September 2014
5:16 PM

Luca: This is not unusual. After dark, the ionosphere's D layer dissipates. This layer normally absorbs MW signals meaning that the only go a few miles. Without this layer, at night, the signals can reach the F layers higher in the atmosphere, and hence be refracted back to earth many hundreds to thousands of miles distant. Tune around MW or LW after dark and you will find many stations from other countries that are not receivable during the day. This is a common cause of interference on MW

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MB's 16 posts GB
10:17 PM


The effect that MB is describing is well known to listeners to Radio Luxembourg on 208 metres. That always faded in and out due to the atmospherics effect, more noticable in the evenings as the ionosphere layers change height as the atmosphere cools.

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MikeP's 2,416 posts Platinum Platinum GB
Monday, 8 September 2014
Andy Ell
11:19 PM

DAB in car aerial tweak. I kept the magnetic aerial on the parcel shelf, as putting it on the roof made no improvement here on the Isle of Thanet, Kent. Always lost signal at the most interesting bit. However I now keep it on the inside of a round metal flan dish in the same place on the parcel shelf, and very rarely have any dropouts. Result!

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Andy Ell's 10 posts GB
Tuesday, 9 September 2014
Steve P
11:52 PM

However I now keep it on the inside of a round metal flan dish in the same place on the parcel shelf,

I have searched for this in the listys of benefits of DAB but can't find it.

Had DAB in a hirecar recently.


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Steve P's 1,171 posts Gold Gold GB
Monday, 22 September 2014
7:52 AM

recently my reception on 999 mw has been so poor due to very noisey interference i could not listen to portsmouth football commentary is this a problem for anyone else. DW from Waterlooville

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David's 1 post GB
Monday, 29 September 2014
7:24 PM

See how FM frequencies are used nationwide across the Uk in this interactive map: - x

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Glyn's 2 posts GB
Tuesday, 7 August 2018
2:00 PM

Trying to find coverage for North Hessary Tor & the map doesn't seem to be showing the coverage. Has FM been phased out already?

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Martin's 1 post GB
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