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Full Freeview on the Hemel Hempstead (Hertfordshire, England) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.729,-0.426 or 51°43'43"N 0°25'34"Wsa_postcodeHP3 8SA

 

The symbol shows the location of the Hemel Hempstead (Hertfordshire, England) transmitter which serves 74,000 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 Hemel Hempstead (Hertfordshire, England) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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Which Freeview channels does the Hemel Hempstead 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
C40 (626.0MHz)214mDTG-2,000W
Channel icons
1 BBC One (SD) London, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 16 others

PSB2
D3+4
 V max
C43 (650.0MHz)214mDTG-2,000W
Channel icons
3 ITV 1 (SD) (London), 4 Channel 4 (SD) London ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 London ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (London), 71 That’s 60s,

PSB3
BBCB
 V max
C46 (674.0MHz)214mDTG-2,000W
Channel icons
46 5SELECT, 101 BBC One HD London, 102 BBC Two HD England, 103 ITV 1 HD (ITV London), 104 Channel 4 HD London ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 V max
C37 (602.0MHz)214mDTG-82,000W
Channel icons
20 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 251 Al Jazeera English, 255 FRANCE 24 (in English), 265 Rok Sky +1, plus 29 others

COM5
ArqA
 V max
C31 (554.0MHz)230mDTG-82,000W
Channel icons
11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 76 That's TV 2 MCR, 233 Sky News, plus 13 others

COM6
ArqB
 V max
C29 (538.0MHz)230mDTG-82,000W
Channel icons
12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 63 GREAT! romance mix, 73 HobbyMaker, 75 That's 90s, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

The Hemel Hempstead (Hertfordshire, England) 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 Hemel Hempstead transmitter?

regional news image
BBC London 4.9m homes 18.4%
from London W1A 1AA, 30km southeast (138°)
to BBC London region - 55 masts.
regional news image
ITV London News 4.9m homes 18.4%
from London WC1X 8XZ, 31km southeast (135°)
to ITV London region - 55 masts.

How will the Hemel Hempstead (Hertfordshire, England) transmission frequencies change over time?

1984-971997-981998-20122012-1318 Apr 2018
B E TB E TB E TE TK T
C29ArqB
C31ArqA
C34_local
C37SDN
C40BBCA
C41ITVwavesITVwavesITVwavesD3+4
C42_local
C43D3+4
C44BBC2wavesBBC2wavesBBC2wavesBBCA
C46BBCB
C47C4wavesC4wavesC4wavesBBCB
C50tv_offSDN
C51tv_offBBC1wavesBBC1wavesBBC1waves
C55tv_offArqB
C59tv_offArqA

tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 4 Apr 12 and 18 Apr 12.

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

Analogue 1-4 10kW
SDN, ARQA, ARQB, BBCA, D3+4, BBCB(-7dB) 2kW
Mux 1*, Mux 2*, Mux A*, Mux B*(-14dB) 400W
Mux C*, Mux D*(-17dB) 200W

Which companies have run the Channel 3 services in the Crystal Palace transmitter area

Sep 1955-Jul 1968Associated-Rediffusion†
Sep 1955-Jul 1968Associated TeleVision◊
Jul 1968-Dec 1992Thames†
Jul 1968-Feb 2004London Weekend Television♦
Jan 1993-Feb 2004Carlton†
Feb 2004-Dec 2014ITV plc♦
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. Hemel Hempstead 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
Thursday, 20 October 2011
Friday, 21 October 2011
N
Norman
2:47 PM
Berkhamsted

Brian
The Bedmond transmitter (Hemel Hempstead) did a shift of channels a few weeks ago. No mention anywhere that I can find about this.
BBC1 etc have shifted and now the 6 multiplexs are :
Ch68, Ch65, ch62, Ch59, Ch55 and Ch56.

I only found out by mistake when BBC1 went walkabout.
To compound the problem, Sandy Heath are now broadcasting at higher levels, so an automatic search is out of the question for me as its signal is stronger but quality worse - and my antenna is vertical pointing at right angles to Sandy.
This might help some of the people in 'iffy' areas (not that Bedmond has ever been the greatest thing since sliced bread)
In case you are wondering, I'm at HP4 2JL

link to this comment
Norman's 4 posts GB flag
Norman's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Briantist
sentiment_very_satisfiedOwner

2:53 PM

Norman: It's both on the Switchover events September- December 2011 | ukfree.tv - independent free digital TV advice page and at the top of this one:

After switchover frequency notes (¶):
Hemel Hempstead BBC A is expected to temporarily move to channel 56 (at 40W ERP) some months in advance of digital switchover, but will adopt its final allocation at switchover.
Hemel Hempstead SDN is expected to temporarily move to channel 68 (at 40W ERP) some months in advance of digital switchover, but will adopt its final allocation at switchover.

link to this comment
Briantist's 38,915 posts GB flag
Wednesday, 7 December 2011
B
Brian English
12:43 PM

Hemel Hempstead Tx

Have lost all c68 850MHz channels

No reported problems / engineering works

Is somebody telling porkies?


link to this comment
Brian English's 2 posts GB flag
B
Brian English
3:47 PM

Hemel Hempstead Tx

c68 miraculously restored approx 14:15

Channel 5 +1 now on this mux
(Freeview channel 44)



link to this comment
Brian English's 2 posts GB flag
Thursday, 15 December 2011
D
D ESSERY
2:58 PM
Watford

WD25 9PS
We cannot record any programmes on BBC1 and 2 We can receive all other stations and also record any programmes including analogue stations ITV 1 and Channel 4. When trying to record BBC1 and 2 all we get is NO SIGNAL We would appreciated any information as to why this is happening

link to this comment
D ESSERY's 1 post GB flag
D's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
Monday, 19 December 2011
S
sheila taiar
8:41 PM
Bushey

I live
Bushey heath wd23 1gd
I can not receive channels
3 4 5 6 13


link to this comment
sheila taiar's 1 post EU flag
sheila's: ...
Dave Lindsay
sentiment_very_satisfiedPlatinum

9:15 PM

sheila taiar: The Digital UK predictor isn't too sparkling and the channels you identify are predicted as being the least best.

Try manually tuning to Ch22.

link to this comment
Dave Lindsay's 5,724 posts GB flag
K
KMJ,Derby
sentiment_satisfiedGold

10:09 PM

D ESSERY: Check that BBC1 & BBC2 are tuned to the correct frequency for the transmitter that your aerial is pointing to. If your aerial is pointing NNW To Hemel Hempstead and set with the rods vertical the correct frequency is C56. If you have found weak signals from Crystal Palace or Sandy Heath in the early part of the channel scan, or if your receiver is still tuned to the former Mux 1 frequency C48 it would explain the "No signal" messages being displayed. You will need to clear the channel list by doing a factory reset, then either manually insert the correct frequencies (C56, C55, C68, C59-, C62, C65) or commence the scan with the aerial unplugged, wait until the scan reaches about C53 then plug the aerial back in.

link to this comment
KMJ,Derby's 1,811 posts GB flag
Friday, 23 December 2011
P
PETER MERRITT
5:37 PM
St. Albans

Have recently had a New aerial fitted and have lost all hd channels they say hemel hemstead have not turned hd on yet is that right ?

link to this comment
PETER MERRITT's 3 posts GB flag
PETER's: ...
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