Maps: C42 (642.0MHz) after switchover
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C42 (642.0MHz) after switchover

The map below shows all the transmitters in the UK using C42 once digtial switchover is complete. Please click the icon to see the coverage area, and double click for more information. is loading, please wait...

What do the map symbols mean?

 COM4/SDN multiplex,  COM4/SDN multiplex,  PSB1/BBCA multiplex,  PSB2/Digital 3+4 multiplex,  PSB2/Digital 3+4 multiplex,  PSB3/BBCB/Freeview HD multiplex,  PSB3/BBCB/Freeview HD multiplex,  Saorview multiplex 2.

Switchover complete

Click on a selection to see the use of the frequency use when switchover is complete:

C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 * * * * * *

Your comments: most recent posts are at the bottom

Your comments are always welcome. Please use the form below to add your thoughts or questions to this page. We will get back to you as soon as we can.

Saturday 25 May 2013 8:46PM

The signal for the C42 channels on freeview are low signal quality. Though the signal strength is good. All the other channels are ok. My transmitter is Heathfield, any ideas?

Dave Lindsay
Saturday 25 May 2013 8:58PM

Marc: Where about are you? Could it be interference from Hannington which also uses C42?

Saturday 25 May 2013 9:17PM

Ringmer, just east of lewes. I have got a booster attached. Might this affect it? As when I have retuned I have had to turn this off because I pick up a second transmitter with london channels broadcasting on it.

laurence penfold
Tuesday 28 May 2013 7:39AM

I applied an update and now I dont get half the channels I used to including citv cbbc film 4 to mention a few. 9I live in st agnes in cornwall near truro, I would like some info as to wahat to do as this is really unacceptable. thanks

Tuesday 28 May 2013 10:54AM

laurence penfold: On the assumption (as no post code given) that you receive Freeview from the Redruth transmitter then what you have mentioned indicates that two mux transmitters have not been picked up during your update, and although you could try carrying out another auto-tune and see if they return, you could on the other hand "manually" tune them in if your TV or box allows.

The two mux channels concerned being: 48 (CITV etc) and 51 (Film 4 etc) only two mentioned as CBBC is on the same mux transmitter as BBC1, and if BBC1 is OK then CBBC should also be.

Pete B
Friday 1 November 2013 11:06AM


I've just returned from holiday & found loads of freeview channels are now not working.

I tried re-tuning (including deletion of all channels before re-tune) but still only have 20 DTV & 11 radio channels.

Checking on this site & the Beacon Hill transmitter site I've established that the channels which are working are mux's psb1 & psb2 but the ones that are not working are com4-6 (ch42, ch45 & ch51).

Again looking at possible fixes I tried manually adding these missing channels but there was no signal strength so wouldn't accept.

These channels were all working before I went on holiday (22/10/2013 - 29/10/2013) & are missing on all my TV's.

my postcode = ex8 2pu & checking the Beacon Hill site it says there are no issues reported.

Does anyone have any further suggestions please?

Friday 1 November 2013 8:00PM

Pete B: As the difference between channels working and not can in real terms involve relatively small changes in signal strength, then in cases such as yours the quickest way to determine the cause of a problem is to make one or two enquiries with a neighbour for the purpose of finding out if they are being similarly affected, because dependant on the outcome this will either reveal a defect in your aerial system or alternatively indicate that the problem is outwith your control.

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