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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.

Are there any planned engineering works or unexpected transmitter faults on the Hemel Hempstead (Hertfordshire, England) mast?

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:32 on 11 Oct to 12:09 on 11 Oct. BBC


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-32,000W
Channel icons
1 BBC One (SD) London, 2 BBC Two England, 9 BBC Four, 201 CBBC SD, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 15 others

PSB2
D3+4
 V max
C43 (650.0MHz)214mDTG-32,000W
Channel icons
3 ITV (SD) (London), 4 Channel 4 (SD) London ads, 5 Channel 5 (SD), 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 London ads, 18 More4, 24 ITV4, 33 ITV +1 (London), 45 Film4 +1,

PSB3
BBCB
 V max
C46 (674.0MHz)214mDTG-62,000W
Channel icons
86 More4 +1, 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,

COM4
SDN
 V max
C37 (602.0MHz)214mDTG-82,000W
Channel icons
 Spotlight TV, 12 Quest, 20 Drama, 21 5USA, 27 ITV2 +1, 30 5STAR, 34 ITV3 +1, 40 Movies4Men, 44 Channel 5 +1, 54 Paramount Network, 55 5SELECT, 58 ITVBe +1, 59 ITV4 +1, 63 Blaze, 66 CBS Reality, 70 Horror Channel, 76 Quest +1, 77 TCC, 80 Blaze +1, 203 CITV, 211 Ketchup TV, plus 21 others

COM5
ArqA
 V max
C31 (554.0MHz)230mDTG-82,000W
Channel icons
11 pick, 17 Really, 19 Dave, 28 E4 +1, 32 Sony Movie Channel, 38 Quest Red, 41 Food Network, 46 Challenge, 72 YourTV, 89 Together TV, 233 Sky News, plus 10 others

COM6
ArqB
 V max
C29 (538.0MHz)230mDTG-82,000W
Channel icons
25 Yesterday, 29 4Music, 31 5Spike, 37 DMAX, 39 CBS Justice, 42 Home, 47 4seven, 71 CBS Drama, 73 Sewing Quarter, 79 Dave ja vu, 81 Talking Pictures TV, 235 AlJazeera English (SD), plus 16 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
DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Are you trying to watch these 19 Freeview HD channels?

the effected channels
the effected channels

The Hemel Hempstead (Hertfordshire, England) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: 4seven HD, 5STAR +1, 5USA +1, Aljazeera English HD, BBC Four HD, BBC News HD, CBeebies HD, CBS Reality +1, Channel 4+1 HD, Forces TV, Freesports, NOW 80s, Now 90s, PBS America, Pick +1, Together TV +1, Quest Red +1, RT HD, Smithsonian Channel HD.

If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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?

1984-971997-981998-20122012-132013-182013-1718 Apr 2018
B E TB E TEE TE TE TK T
C29ArqB
C31ArqA
C34_local
C37SDN
C40BBCA
C41ITVwavesITVwavesITVwavesD3+4D3+4D3+4
C42_local_local_local
C43D3+4
C44BBC2wavesBBC2wavesBBC2wavesBBCABBCABBCA
C46BBCB
C47C4wavesC4wavesC4wavesBBCBBBCBBBCB
C48+1
C50tv_offSDNSDNSDN
C51tv_offBBC1wavesBBC1wavesBBC1waves
C55tv_off2ArqBArqBArqB
C59tv_off-BArqAArqAArqA
C60tv_off+A
C62C
C65D

tv_off Being removed from Freeview (for 5G use) by 30 June 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 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
Wednesday, 15 May 2019
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 PM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:15 today to 15:21 today. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Thursday, 16 May 2019
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:15 yesterday to 15:21 yesterday. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

11:09 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:11 today. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 PM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:11 today to 14:16 today. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Friday, 17 May 2019
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:11 yesterday to 14:16 yesterday. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Saturday, 18 May 2019
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:11 on 16 May to 14:16 on 16 May. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Tuesday, 28 May 2019
Transmitter engineering
sentiment_very_satisfiedOwner

11:09 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:05 today. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 PM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:05 today to 14:39 today. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Wednesday, 29 May 2019
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:05 yesterday to 14:39 yesterday. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

2:09 PM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 11:07 today to 12:37 today. [BBC]

link to this comment
Transmitter engineering's 128,144 posts xx
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