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 22/04/2024 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 April 2018
Transmitter engineering
6:07 AM
6:07 AM
HEMEL HEMPSTEAD transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 on 18 Apr to 05:30 on 18 Apr, HD Digital TV Off Air; DSO related from 00:01 on 18 Apr to 05:30 on 18 Apr. [BBC]
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Saturday, 21 April 2018
M
Me at Home12:09 AM
I live in Hemel Hempstead with a loft aerial pointing at the Bedmond transmitter. I lost TV reception on the 18th of April 2018 but, after retuning my TV with the 'first time' installation option, I have managed to get all the TV stations back.
The frequency channels appear to be:
C29
C31
C37
C41
C44
C47 (HD)
I no longer need an aerial amplifier now so the signal strength is probably stronger than before.
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Thursday, 26 April 2018
M
Me at Home12:09 PM
I just re-checked my TV signals.
I am also getting
C40
C43
C46
Maybe I'm receiving from the Hemel Town Transmitter as well as Bedmond.
I can't seem to get the 'London Live' station on C34 yet.
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MikeP
12:23 PM
12:23 PM
Me At Home:
Please provide a full post code so we can see what the predicted receptions is at yiour location.
You can also use the Digital UK website (http://www.digitaluk.co.uk/) to search for useful information, such as the actual channels being used and future changes expected.
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M
Me at Home2:19 PM
MikeP:
My postcode is hp39ha.
Thanks for your help.
I did look at the Digital UK website (http://www.digitaluk.co.uk/)
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S
StevensOnln15:52 PM
Me at Home: Hemel Hempstead transmitter uses UHF channels 40/43/46/37/31/29 and is predicted to give good reception at your postcode. Hemel Hempstead Town uses 41/44/47 and is also predicted to be good at your postcode. The local mux on C34 from Hemel Hempstead is not showing on the prediction for your postcode.
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J
John Day8:04 PM
Bushey
There has been a breakdown in Bushey Herts WD23 3SY in particular. Signal packed up tried retuning no good. You published on screen text that you had problems with Hemel Guildford and others but earlier on lap top you say no problem
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John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
M
M8:47 PM
No signal on all MUXs since about 19:30 pm. Checked two TVs in my house and have been phoned by neighbour with own aerial with same issue. We are both pointing at Hemel Hempstead at Bedmond. Receiving in Bourne End HP1.
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H
Hoad8:53 PM
Watford
We have no signal on both of our TV 's can you tell us if there is a problem in our area post code WD25 8DR . The aerial is on the roof.
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Hoad's: mapH's Freeview map terrainH's terrain plot wavesH's frequency data H's Freeview Detailed Coverage
Transmitter engineering
9:28 PM
9:28 PM
HEMEL HEMPSTEAD transmitter - Freeview: BBC Digital TV Off Air from 19:19 today, HD Digital TV Off Air from 19:19 today. DAB: BBC National DAB Radio Off Air from 19:20 today to 19:40 today. [BBC]
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