Freeview Light on the Welwyn (Hertfordshire, England) transmitter
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Welwyn (Hertfordshire, England) transmitter.
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The symbol shows the location of the Welwyn (Hertfordshire, England) transmitter which serves 2,700 homes.
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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.
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See terrain plotWelwyn transmitter Freeview broadcasts
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.
| Mux | Aerial position | Frequency | Height | Mode | Watts |
PSB1
BBCA | vertical max | C43 (650.0MHz) | 123m | 64QAM 8K 2/3
24.1Mb/s DVB-T MPEG2 | 30W |
| 
1 BBC One London, 2 BBC Two England, 7 BBC Three, 9 BBC Four, 70 CBBC Channel, 71 CBeebies, 80 BBC News, 81 BBC Parliament, 301 301, plus 12 others 200 BBC Red Button, 700 BBC Radio 1, 701 BBC 1Xtra, 702 BBC Radio 2, 703 BBC Radio 3, 704 BBC Radio 4, 705 BBC Radio 5 Live, 706 BBC Radio 5 Live Sports Extra, 707 BBC 6 Music, 708 BBC Radio 4 Extra, 709 BBC Asian Network, 710 BBC World Service,
|
PSB2
D3+4 | vertical max | C40 (626.0MHz) | 123m | 64QAM 8K 2/3
24.1Mb/s DVB-T MPEG2 | 30W |
| 
3 ITV (London), 4 Channel 4 London ads, 5 Channel 5 London ads, 6 ITV 2, 13 Channel 4+1 London ads, 14 More 4, 28 E4, 33 ITV +1 (London),
|
PSB3
BBCB | vertical max | C46 (674.0MHz) | 123m | 256QAM 32KE 2/3
40.2Mb/s DVB-T2 MPEG4 | 30W |
| 
101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV London), 104 Channel 4 HD London ads, plus 1 others 232 The Space,
|
Looking for these 26 channels?
The
Welwyn (Hertfordshire, England) mast is a
public service broadcasting (PSB) transmitter, it does not provide these
commercial (COM) channels: 4Music, 4seven, 5*, 5USA, Al Jazeera English, Challenge, Channel 5 +1, CITV, Community Channel, Dave, Dave ja vu, E4+1, Film 4, Food Network, ITV 2 +1, ITV 3, ITV 4, Movie Mix, PICK TV, Quest, Really, RT English , Sky News, The Zone, VIVA, Yesterday.
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.
Regional news from the Welwyn transmitter
How the transmission frequencies change over time
| years | | 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 2013-18 | 2013-18 | |
| aerial group | | B E | B E | B E | B E K | B E K | B E K | |
| C40 | | BBC1 | BBC1 | BBC1 | D3+4 | D3+4 | D3+4 | |
| C43 | | ITV | ITV | ITV | BBCA | BBCA | BBCA | |
| C46 | | BBC2 | BBC2 | BBC2 | BBCB | BBCB | BBCB | |
| 700 | C50 | | C4 | C4 | C4 | | | | |
| orange background for multiplexes names more | green background for transmission frequencies | lilac background for power levels in watts | 800MHz band: 4G mobile to start in 2013 | 700MHz band: possible 4G in 2019 more | 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 WItalics for
analogue, digital switchover was Wednesdays 4th April and 18th April 2012.
Comparison of old analogue and current digital signal levels
| Analogue 1-4 | 150W | |
| BBCA, D3+4, BBCB | (-7dB) 30W | |
History of Channel 3 in the Crystal Palace transmitter area
| Sep 1955-Jul 1968 | Associated-Rediffusion† |
| Sep 1955-Jul 1968 | Associated TeleVision◊ |
| Jul 1968-Dec 1992 | Thames† |
| Jul 1968-Dec 2014 | London Weekend Television♦ |
| Jan 1993-Dec 2014 | Carlton† |
| | Feb 1983-Dec 1992 | TV-am• |
| Jan 1993-Sep 2010 | GMTV• |
| Sep 2010-Dec 2014 | ITV Daybreak• |
|
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Welwyn 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.
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.
Tony McGinnWednesday 3 December 2008 7:02PM
Welwyn welwyn transmitter not giving a signal for BBC1. Ch4 is cloudy
HelpTony McGinnMonday 15 December 2008 9:20AM
Welwyn Transmitter only supplying BBC2.
HelpTony McGinn: There are no reported faults on the transmitter... Linda DalyTuesday 1 June 2010 12:53PM
Welwyn I am finding a lot of interference on ITV
channels, could you please tell me what I should do about this? Post code AL7.WELWYN transmitter - Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - 7 April 2011: Engineering transmitter work will take place between 08:00hrs and 18:00hrs. TV services that will be disrupted: Analogue services - BBC1, BBC2, ITV & Channel 4. Digital services - N/A [DUK] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Analogue BBC ONE Off Air; DSO related from 09:45 today to 10:13 today BBC TWO Off Air; DSO related from 09:45 today to 10:13 today [BBC] 7 April 2011: Engineering transmitter work will take place between 08:00hrs and 18:00hrs. TV services that will be disrupted: Analogue services - BBC1, BBC2, ITV & Channel 4. Digital services - N/A [DUK] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Analogue BBC ONE Off Air; DSO related from 09:45 today to 10:13 today BBC TWO Off Air; DSO related from 09:45 today to 10:13 today [BBC] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Analogue BBC ONE Off Air; DSO related from 09:45 yesterday to 10:13 yesterday BBC TWO Off Air; DSO related from 09:45 yesterday to 10:13 yesterday [BBC] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Analogue BBC ONE Off Air; DSO related from 09:00 today BBC TWO Off Air; DSO related from 09:00 today [BBC] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Analogue BBC ONE Off Air; DSO related from 09:00 today to 17:05 today BBC TWO Off Air; DSO related from 09:00 today to 17:05 today [BBC] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Analogue BBC ONE Off Air; DSO related from 09:00 yesterday to 17:05 yesterday BBC TWO Off Air; DSO related from 09:00 yesterday to 17:05 yesterday [BBC] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Analogue BBC ONE Off Air; DSO related from 09:00 on 01 Jun to 17:05 on 01 Jun BBC TWO Off Air; DSO related from 09:00 on 01 Jun to 17:05 on 01 Jun [BBC] Over the next week Welwyn relay: TV (analogue) Service Shutdowns, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] WELWYN transmitter - Freeview BBC Digital TV Off Air; DSO related from 06:54 today to 07:20 today HD Digital TV Off Air from 17:27 today to 20:42 today [BBC] WELWYN transmitter - Freeview BBC Digital TV Off Air; DSO related from 06:54 on 18 Apr to 07:20 on 18 Apr HD Digital TV Off Air from 17:27 on 18 Apr to 20:42 on 18 Apr [BBC] WELWYN transmitter - Freeview BBC Digital TV Off Air from 10:15 on 25 Jun to 10:28 on 25 Jun HD Digital TV Off Air from 10:15 on 25 Jun to 10:28 on 25 Jun [BBC] updates
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