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 - Hemel Hempstead transmitter: Possible effect on TV reception week commencing 02/10/2023 Pixelation or flickering on some or all channels 
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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 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 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)
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?
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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Friday, 20 January 2012
HEMEL HEMPSTEAD transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:23 on 17 Jan to 01:25 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:02 on 17 Jan to 01:07 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Weak Signal Analogue BBC ONE Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan BBC TWO Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan [BBC]
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HEMEL HEMPSTEAD transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:02 on 17 Jan to 01:07 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:23 on 17 Jan to 01:25 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Weak Signal Analogue BBC ONE Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan BBC TWO Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan [BBC]
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HEMEL HEMPSTEAD transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:02 on 17 Jan to 01:07 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:23 on 17 Jan to 01:25 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Weak Signal Analogue BBC ONE Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan BBC TWO Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan [BBC]
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Saturday, 21 January 2012
HEMEL HEMPSTEAD transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:23 on 17 Jan to 01:25 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Weak Signal from 22:53 on 16 Jan to 22:56 on 16 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air Analogue BBC ONE Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan BBC TWO Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan [BBC]
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HEMEL HEMPSTEAD transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:23 on 17 Jan to 01:25 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Weak Signal from 22:53 on 16 Jan to 22:56 on 16 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air Analogue BBC ONE Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan BBC TWO Off Air from 22:36 on 16 Jan to 22:37 on 16 Jan [BBC]
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P
PETER MERRITT9:28 PM
St. Albans
Recently changed from communial aerial to having an aerial fitted - the fitter who fitted the aerial said the signal was stronger from Hemel Hemstead than Crystal Palace - the aerial previous has always given us a good picture
the picture we now get wavers all the time and we have no HD
Will this improve
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PETER's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
Peter Merritt: What was the reason for having your own aerial fitted? Did you get HD with the communal aerial?
You won't get HD services from Hemel Hempstead until switchover on 18th April.
What is the "wavers" you describe? Is this digital television (Freeview)?
What are you using, i.e. set-top box, TV? If it's a set-top box, then how are you connecting it together?
Has this problem started since the new aerial was installed?
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Sunday, 22 January 2012
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PETER MERRITT5:49 PM
St. Albans
We had our own aerial fitted because the co
mmunal aerial we were attatched to is to become redundant
the picture quality we had previously was better than now which constantly "twitches " and sometims goes off for a moment
the tv has built in Freeview
the aerial was fitted on the gutter face board by a local aerial specialist - thanks
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PETER's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
Monday, 23 January 2012
PETER MERRITT: Can you please see Freeview intermittent interference | ukfree.tv - independent free digital TV advice in the first instance?
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HEMEL HEMPSTEAD transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:23 on 17 Jan to 01:25 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 01:02 on 17 Jan to 01:07 on 17 Jan BBC Digital TV (Four, Cbeebies, Parliament, 3... Weak Signal [BBC]
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