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Freeview Light on the Hemel Hempstead Town (Hertfordshire, England) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.747,-0.475 or 51°44'50"N 0°28'29"Wsa_postcodeHP1 1BT

 

The symbol shows the location of the Hemel Hempstead Town (Hertfordshire, England) transmitter which serves 6,800 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 Hemel Hempstead Town (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 Town 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
C41 (634.0MHz)154mDTG-38W
Channel icons
1 BBC One (SD) London, 2 BBC Two England, 9 BBC Four, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 15 others

PSB2
D3+4
 V max
C44 (658.0MHz)154mDTG-38W
Channel icons
3 ITV (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, 25 ITV4, 29 E4 +1, 34 ITV +1 (London),

PSB3
BBCB
 V max
C47 (682.0MHz)154mDTG-68W
Channel icons
72 Shopping Quarter , 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV London), 104 Channel 4 HD London ads, 105 Channel 5 HD, 204 CBBC HD, plus 1 others

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 52 Freeview channels?

the effected channels
the effected channels
the effected channels
the effected channels

The Hemel Hempstead Town (Hertfordshire, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4Music, 4seven, 5SELECT, 5STAR, 5USA, Aljazeera English, BBC Four HD, BBC News HD, Blaze, Blaze +1, CBeebies HD, CBS Drama, CBS Justice, CBS Reality, Challenge, Channel 5 +1, CITV, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, Film4 +1, Food Network, Forces TV, FreeSports, GB News, GREAT! movies, GREAT! movies action, HGTV, Horror Channel, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, More4 +1, Now 70s, Paramount Network, PBS America +1, pick, Quest +1, Quest Red, Quest Red +1, Really, RT HD, Sky Arts, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, Together TV, Yesterday +1.

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 Town transmitter?

regional news image
BBC London 4.9m homes 18.4%
from London W1A 1AA, 34km southeast (136°)
to BBC London region - 55 masts.
regional news image
ITV London News 4.9m homes 18.4%
from London WC1X 8XZ, 35km southeast (133°)
to ITV London region - 55 masts.

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

1984-971997-981998-20122012-1318 Apr 2018
C/D EC/D EC/D EC/D E TB E K T
C41BBCA
C44D3+4
C47BBCB
C53tv_offBBCB
C54tv_offC4wavesC4wavesC4waves
C57tv_offD3+4
C58tv_offBBC1wavesBBC1wavesBBC1waves
C60tv_offBBCA
C61ITVwavesITVwavesITVwaves
C64BBC2wavesBBC2wavesBBC2waves

tv_off Being removed from Freeview (for 5G use) after November 2020 - 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 20W
BBCA, D3+4, BBCB(-4dB) 8W

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 Town 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
Sunday, 4 December 2011
P
Pete Stears
10:36 AM
Berkhamsted

Please can anyone give some advise as to how well Berkhamsted (Dudswell HP4 3TH)will be served after the digital switchover DSO. I have 2 aerials and over the years I have long periods of using Bedmond, or Crystal palace. currently using Crystal P. with mast amplifier new aerial installation 2 years ago. However,is there any likelyhood that either or at least one transmitter will be boosted in power at the time of DSO, or some time there abouts. Analogue is always grainy but watchable when digital is unbearable (5% of the time). Many thanks for any information/ knowledge that may give some ray of hope. peter.stears@2e2.com

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Pete Stears's 1 post GB
K
KMJ,Derby
sentiment_satisfiedGold

11:34 AM

Pete Stears: The Digital UK postcode checker predicts good reception to be available on all six muxes from Crystal Palace after switchover on 18th April 2012. Prediction is for good reception 99% of the time in 91% of locations in your postcode area (or better, depending on mux). The power of Crystal Palace increases tenfold to 200kW on each mux. Although the Hemel Hempstead full service transmitter also has a power increase the frequencies allocated will also be in use at Hannington and Oxford, resulting in a prediction of variable or poor reception at your location.

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KMJ,Derby's 1,811 posts GB
Tuesday, 7 May 2013
T
Tim Hayward
12:59 AM
St. Albans

Hi, I'm at AL3 5RU and tuned to Hemel Hempstead, reception fine on 41 and 44 at 70% level, 98% quality, but constant picture break up and only short bursts of sound on 55 and 59, 60% signal 85% quality. I've tried re-tuning and swithching off mobile and appliances with motors. Can you advise?
Many thanks, Tim

link to this comment
Tim Hayward's 1 post GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

1:16 AM

Tim Hayward: Have you had your Group B aerial replaced with a wideband one?

COM channels, which are those you're having difficulty with, are on C/D channels from Hemel Hempstead.

See:

Aerials, TV Aerial and Digital Aerial

link to this comment
Dave Lindsay's 5,724 posts GB
Thursday, 22 May 2014
Transmitter engineering
sentiment_very_satisfiedOwner

7:32 AM

HEMEL HEMPSTEAD TOWN transmitter - Freeview: BBC Digital TV Off Air from 02:00 today to 03:06 today. [BBC]

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Transmitter engineering's 137,869 posts xx
Friday, 26 September 2014
Transmitter engineering
sentiment_very_satisfiedOwner

1:33 PM

HEMEL HEMPSTEAD TOWN transmitter - Freeview: BBC Digital TV Off Air from 10:51 today to 10:56 today, HD Digital TV Off Air from 10:51 today to 10:56 today. [BBC]

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Transmitter engineering's 137,869 posts xx
Saturday, 27 September 2014
Transmitter engineering
sentiment_very_satisfiedOwner

4:33 AM

HEMEL HEMPSTEAD TOWN transmitter - Freeview: BBC Digital TV Off Air from 10:51 yesterday to 10:56 yesterday, HD Digital TV Off Air from 10:51 yesterday to 10:56 yesterday. [BBC]

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Transmitter engineering's 137,869 posts xx
Sunday, 28 September 2014
Transmitter engineering
sentiment_very_satisfiedOwner

4:35 AM

HEMEL HEMPSTEAD TOWN transmitter - Freeview: BBC Digital TV Off Air from 10:51 on 26 Sep to 10:56 on 26 Sep, HD Digital TV Off Air from 10:51 on 26 Sep to 10:56 on 26 Sep. [BBC]

link to this comment
Transmitter engineering's 137,869 posts xx
Saturday, 29 November 2014
Transmitter engineering
sentiment_very_satisfiedOwner

1:31 PM

HEMEL HEMPSTEAD TOWN transmitter - Freeview: HD Digital TV Off Air from 12:12 today to 12:12 today. [BBC]

link to this comment
Transmitter engineering's 137,869 posts xx
Tuesday, 16 February 2016
Transmitter engineering
sentiment_very_satisfiedOwner

7:31 AM

HEMEL HEMPSTEAD TOWN transmitter - Freeview: HD Digital TV Off Air from 05:33 today to 05:39 today. [BBC]

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Transmitter engineering's 137,869 posts xx
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