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, 14 October 2011
HEMEL HEMPSTEAD transmitter - Analogue BBC TWO Weak Signal from 06:50 on 12 Oct to 07:10 on 12 Oct BBC TWO Weak Signal from 07:19 on 12 Oct to 14:30 on 12 Oct [BBC]
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HEMEL HEMPSTEAD transmitter - Analogue BBC TWO Weak Signal from 06:50 on 12 Oct to 07:10 on 12 Oct BBC TWO Weak Signal from 07:19 on 12 Oct to 14:30 on 12 Oct [BBC]
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Saturday, 15 October 2011
Iona: If you can get analogue and not digital, then this, at your location, would be because you are using the Hemel Hempstead Town transmitter.
You should have a full Freeview service from the Hemel Hempstead (main) transmitter - can you please see Freeview reception has changed? | ukfree.tv - independent free digital TV advice for things to try.
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Monday, 17 October 2011
F
Fabian10:42 AM
London
Hi,
I live at 19 Monnery Road in Archway, N19 5SA. It's first time I'm buying and aerial so I'm new to all this. I plan to get a HD Freeview indoor aerial. Can someone advise where I should be pointing this aerial to?
Many Thanks,
Fabian
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Fabian's: mapF's Freeview map terrainF's terrain plot wavesF's frequency data F's Freeview Detailed Coverage
M
Mike Dimmick5:53 PM
Fabian: Digital UK suggest that the best option for you is the main Crystal Palace transmitter, which is roughly south-south-east (162°) and 16 km away.
It's very likely that your neighbours' aerials are already facing that direction.
Do be careful of aerials advertised on the Internet and in DIY stores. There is nothing 'HD' or 'Freeview' about any aerial. An aerial *might* be termed 'digital' if it has a balun, a device that better matches the properties of the aerial to the properties of the cable; cheaper aerials designed before digital started might not have had a balun, but an aerial not labelled as 'digital' might still have one.
I assume, by the way, that you're talking about a roof aerial. Indoor aerials can almost never give as good a result as a roof aerial - the elements are always under-sized, UHF signals don't travel well through walls and signals will be attenuated by having to come through neighbours' walls. A small aerial designed for a roof-top can work in a loft, but it's still advisable to put it outside if you can.
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K
Keith10:39 PM
Hemel Hempstead
I've lost all analogue signal and cannot pick up a digital signal on digital tvs. This has happened in the last couple of days.
I have a loft aerial which may well be quite old but has up till now always provided a good signal, any suggestions as to the cause of the loss of signal?
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Keith's: mapK's Freeview map terrainK's terrain plot wavesK's frequency data K's Freeview Detailed Coverage
Thursday, 20 October 2011
Friday, 21 October 2011
N
Norman2:47 PM
Berkhamsted
Brian
The Bedmond transmitter (Hemel Hempstead) did a shift of channels a few weeks ago. No mention anywhere that I can find about this.
BBC1 etc have shifted and now the 6 multiplexs are :
Ch68, Ch65, ch62, Ch59, Ch55 and Ch56.
I only found out by mistake when BBC1 went walkabout.
To compound the problem, Sandy Heath are now broadcasting at higher levels, so an automatic search is out of the question for me as its signal is stronger but quality worse - and my antenna is vertical pointing at right angles to Sandy.
This might help some of the people in 'iffy' areas (not that Bedmond has ever been the greatest thing since sliced bread)
In case you are wondering, I'm at HP4 2JL
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Norman's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Norman: It's both on the Switchover events September- December 2011 | ukfree.tv - independent free digital TV advice page and at the top of this one:
After switchover frequency notes (¶):
Hemel Hempstead BBC A is expected to temporarily move to channel 56 (at 40W ERP) some months in advance of digital switchover, but will adopt its final allocation at switchover.
Hemel Hempstead SDN is expected to temporarily move to channel 68 (at 40W ERP) some months in advance of digital switchover, but will adopt its final allocation at switchover.
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Tuesday, 1 November 2011
HEMEL HEMPSTEAD transmitter - Analogue BBC ONE Weak Signal from 14:19 today to 14:34 today [BBC]
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