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Freeview Light on the Deri (Caerphilly, Wales) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.712,-3.274 or 51°42'42"N 3°16'25"Wsa_postcodeCF81 9JF

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The symbol shows the location of the Deri (Caerphilly, Wales) transmitter which serves 800 homes. The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Deri (Caerphilly, Wales) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name

Which Freeview channels does the Deri transmitter broadcast?

If you have any kind of Freeview fault, follow this Freeview reset procedure first.

Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 V max
C25 (506.0MHz)418mDTG-310W
Channel icons
1 BBC One Wales, 2 BBC Two Wales, 9 BBC Four, 120 CBBC, 121 CBeebies, 130 BBC News, 131 BBC Parliament, 601 BBC Red Button 1, plus 14 others

PSB2
D3+4
 V max
C22 (482.0MHz)418mDTG-310W
Channel icons
3 ITV (Wales), 4 S4C HD, 5 Channel 5, 6 ITV 2, 7 Channel 4 (Wales) South ads, 13 Channel 4 +1 South ads, 14 More4, 15 Film4, 24 ITV4, 33 ITV +1 (Wales),

PSB3
BBCB
 V max
C28 (530.0MHz)418mDTG-610W
Channel icons
45 Film4 +1, 101 BBC One HD Wales, 102 BBC Two HD (England), 103 ITV HD (ITV Central West), 104 Channel 4 HD South ads, 105 Channel 5 HD, 123 CBBC HD,



DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
H/V: aerial position (horizontal or vertical)

Are you trying to watch these 0 Freeview channels?


The Deri (Caerphilly, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .

If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.

Which BBC and ITV regional news can I watch from the Deri transmitter?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 24km south
to BBC Wales region - 206 masts.
regional news image
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 28km south
to ITV Wales region - 206 masts.

How will the Deri (Caerphilly, Wales) transmission frequencies change over time?

years1984-971997-981998-20102010-132013-182013-18
aerial groupA KA KA KA KA KA K
C22BBC1BBC1BBC1D3+4D3+4D3+4
C25ITVITVITVBBCABBCABBCA
C28BBC2BBC2BBC2BBCBBBCBBBCB
600C32C4C4C4

orange background for multiplexes names more
green background for transmission frequencies
lilac background for power levels in watts
800MHz band: 4G mobile started in 2013
700MHz band: 4G from 30 June 2020more
600MHz band: new or moved digital TV services more
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Wednesdays 3rd March and 31st March 2010.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 50W
BBCA, D3+4, BBCB(-7dB) 10W

Which companies have run the Channel 3 services in the Wenvoe transmitter area

Jan 1958-Jul 1968Television Wales and the West
Jul 1968-Feb 2004Harlech Television
Feb 2004-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Deri was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Comments
Monday, 21 November 2016
Transmitter engineering
4:32 AM

DERI transmitter - Freeview: BBC Digital TV Off Air from 04:49 yesterday to 07:58 yesterday, HD Digital TV Off Air from 04:49 yesterday to 07:58 yesterday. [BBC]

link to this
Transmitter engineering's 114,851 posts Owner Owner xx
Tuesday, 22 November 2016
Transmitter engineering
4:31 AM

DERI transmitter - Freeview: BBC Digital TV Off Air from 04:49 on 20 Nov to 07:58 on 20 Nov, HD Digital TV Off Air from 04:49 on 20 Nov to 07:58 on 20 Nov. [BBC]

link to this
Transmitter engineering's 114,851 posts Owner Owner xx
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Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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