Full Freeview on the Hemel Hempstead (Hertfordshire, England) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 51.729,-0.426 or 51°43'43"N 0°25'34"W |  | HP3 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: Slightly reduced power due to essential engineering from 30 May 10:00 until 30 May 15:56. . 
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
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 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.
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?
BBC London 4.9m homes 18.4%
from London W1A 1AA, 30km southeast (138°)
to BBC London region - 55 masts.
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?
| 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 18 Apr 2018 | |||||
| B E T | B E T | B E T | E T | K T | |||||
| C29 | ArqB | ||||||||
| C31 | ArqA | ||||||||
| C34 | _local | ||||||||
| C37 | SDN | ||||||||
| C40 | BBCA | ||||||||
| C41 | ITVwaves | ITVwaves | ITVwaves | D3+4 | |||||
| C42 | _local | ||||||||
| C43 | D3+4 | ||||||||
| C44 | BBC2waves | BBC2waves | BBC2waves | BBCA | |||||
| C46 | BBCB | ||||||||
| C47 | C4waves | C4waves | C4waves | BBCB | |||||
| C50tv_off | SDN | ||||||||
| C51tv_off | BBC1waves | BBC1waves | BBC1waves | ||||||
| C55tv_off | ArqB | ||||||||
| C59tv_off | ArqA |
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 |
Local transmitter maps
Hemel Hempstead Freeview Hemel Hempstead DAB Crystal Palace TV region BBC London LondonWhich companies have run the Channel 3 services in the Crystal Palace transmitter area
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Saturday, 13 September 2014
Transmitter engineering
4:34 AM
4:34 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Off Air from 15:40 on 11 Sep to 15:55 on 11 Sep. [BBC]
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Thursday, 27 November 2014
Transmitter engineering
1:32 PM
1:32 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 12:10 today. [BBC]
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Transmitter engineering
4:32 PM
4:32 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 12:10 today to 13:35 today. [BBC]
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Friday, 28 November 2014
Transmitter engineering
4:32 AM
4:32 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 12:10 yesterday to 13:35 yesterday. [BBC]
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Saturday, 29 November 2014
Transmitter engineering
4:31 AM
4:31 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 12:10 on 27 Nov to 13:35 on 27 Nov. [BBC]
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Wednesday, 10 December 2014
Transmitter engineering
1:31 PM
1:31 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:04 today. [BBC]
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Transmitter engineering
7:31 PM
7:31 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:04 today to 15:09 today. [BBC]
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Thursday, 11 December 2014
Transmitter engineering
4:31 AM
4:31 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:04 yesterday to 15:09 yesterday. [BBC]
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Friday, 12 December 2014
Transmitter engineering
4:31 AM
4:31 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:04 on 10 Dec to 15:09 on 10 Dec. [BBC]
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Thursday, 15 January 2015
Transmitter engineering
4:32 PM
4:32 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 12:32 today to 13:45 today. [BBC]
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