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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

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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

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
C44 (658.0MHz)214mDTG-32,000W
Channel icons
1 BBC One London, 2 BBC Two England, 9 BBC Four, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 601 BBC RB 1, plus 17 others

PSB2
D3+4
 V max
C41 (634.0MHz)214mDTG-32,000W
Channel icons
3 ITV (London), 4 Channel 4 London ads, 5 Channel 5, 6 ITV 2, 13 Channel 4 +1 London ads, 14 More4, 15 Film4, 24 ITV4, 24 ITV4 +1, 28 E4, 33 ITV +1 (London),

PSB3
BBCB
 V max
C47 (682.0MHz)214mDTG-62,000W
Channel icons
45 Film4 +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
C50 (706.0MHz)214mDTG-82,000W
Channel icons
10 ITV3, 20 Drama, 21 5 USA, 26 ITV Be, 27 ITV 2 +1, 30 5STAR, 34 ITV3 +1, 37 Quest, 44 Channel 5 +1, 54 My5, 58 ITV Be +1, 59 ITV4 +1, 61 True Entertainment, 63 Blaze, 66 CBS Reality, 70 Horror Channel, 80 Blaze +1, 83 Quest +1, 203 CITV, 211 Ketchup TV, plus 17 others

COM5
ArqA
 V max
C59 (778.0MHz)230mDTG-82,000W
Channel icons
11 pick, 12 Dave, 17 Really, 29 E4 +1, 32 Sony Movie Ch, 38 Quest Red, 41 Food Network, 46 Challenge, 48 Movies4Men, 60 Sony Crime Channel 2, 72 YourTV, 233 Sky News, plus 9 others

COM6
ArqB
 V max
C55 (746.0MHz)230mDTG-82,000W
Channel icons
18 4Music, 19 Yesterday, 25 Home, 31 5Spike, 39 CBS Action, 42 Travel Channel, 47 4seven, 62 True Movies, 71 CBS Reality 1, 73 YourTV +1, 79 Dave ja vu, 81 Talking Pictures TV, plus 20 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 0 Freeview HD 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: .

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
to BBC London region - 55 masts.
regional news image
ITV London News 4.9m homes 18.4%
from London WC1X 8XZ, 31km southeast
to ITV London region - 55 masts.

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

years1984-971997-981998-20122012-132013-182013-1731st Mar 2018-
aerial groupB EB EEEEEA B C/D E K VHF
C41ITVITVITVD3+4D3+4D3+4
C42_local_local_local
C44BBC2BBC2BBC2BBCABBCABBCA
C47C4C4C4BBCBBBCBBBCB
C48+1
700C50SDNSDNSDN
C51BBC1BBC1BBC1
C552ArqBArqBArqB
C59-BArqAArqAArqA
C60+A
800C62C
C65D

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 4th April and 18th April 2012.

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 September 2018
Transmitter engineering
6:07 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Off Air from 11:02 yesterday to 12:30 yesterday. [BBC]

link to this
Transmitter engineering's 107,468 posts Owner Owner xx
Friday, 21 September 2018
Transmitter engineering
6:07 AM

HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Off Air from 11:02 on 19 Sep to 12:30 on 19 Sep. [BBC]

link to this
Transmitter engineering's 107,468 posts Owner Owner xx
Monday, 24 September 2018
M
Mike Hahn
11:41 AM

I really would value some help. I visited the website but I must admit that I understand little. Sorry about that, so I ask for help.
I bought a reasonable qulaity TV recently but have encountered a problem. My signal source is Terristral Freeview (Chimeney aerial) from a mast in Bedmond (Hemel Hempstead).
I had not realised tha lack of HD signals. The one that matters to me is BBC News (231) as that is the one that I try to watch most. It is in SD and hard to watch.
So, my qestion is when will this transmitter provide HD?
Mike.
PS I cann't afford to switch to cable.

link to this
Mike Hahn's 1 post GB
S
StevensOnln1
12:13 PM

Mike Hahn: Every transmitter in the UK (over 1000+ of them) broadcasts HD channels. BBC News HD is on the temporary COM7 multiplex which is available (along with COM8) from 30 main transmitters covering around 70% of UK households and will not be added to any further transmitters and is expected to close in 2022. Depending on your exact location (please provide a full postcode) you may be able to receive COM7 from another transmitter (e.g. Crystal Palace). Alternatively BBC News HD (and all of the BBC's other HD channels) are available free to air on satellite, or online via iPlayer.

link to this
StevensOnln1's 1,947 posts Gold Gold GB
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