Full Freeview on the Hemel Hempstead (Hertfordshire, England) transmitter
Brian Butterworth first published this on - UK Free TV
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.
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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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Wednesday, 8 June 2016
P
Peter9:58 PM
Berkhamsted
Berkhamsted HP4 3BP
Are we having wierd atmospheric conditions? Particualarly in evenings over last week or so am losing most digital channels whether direct or on BT box. Some blank, some fuzz in and out. E4 and E4+1 worst? (re-tuned tv and box a couple of weeks ago and was all working finr for a week or so)
Thx
link to this comment |
Peter's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
Thursday, 9 June 2016
K
KMJ,Derby12:21 AM
Peter: yes, for the past few days the weather conditions have been such that in some areas signals that normally give good reception have been subject to interference from distant transmitters resulting in glitching and the dreaded 'no signal' being displayed for various periods of time, whilst some services were received loud and clear tens or hundreds of miles outside their normal range. If you retuned because the normal programmes were not being received it is likely that services you have been watching for the past week were from different transmitters to the one that your aerial is pointing to. Once conditions changed or returned to normal the strength of the alternative signals would diminish or the signals disappear altogether, making another retune necessary to restore the correct channel list.
link to this comment |
Tuesday, 19 July 2016
Transmitter engineering
11:32 AM
11:32 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:43 today. [BBC]
link to this comment |
Transmitter engineering
5:32 PM
5:32 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:43 today to 14:36 today. [BBC]
link to this comment |
Wednesday, 20 July 2016
Transmitter engineering
5:32 AM
5:32 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:43 yesterday to 14:36 yesterday. [BBC]
link to this comment |
Thursday, 21 July 2016
Transmitter engineering
5:32 AM
5:32 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:43 on 19 Jul to 14:36 on 19 Jul. [BBC]
link to this comment |
Friday, 22 July 2016
Transmitter engineering
11:32 AM
11:32 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Off Air from 08:33 today to 10:34 today, BBC National DAB Radio Weak Signal from 10:43 on 19 Jul to 14:36 on 19 Jul. [BBC]
link to this comment |
Transmitter engineering
5:32 PM
5:32 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:43 on 19 Jul to 14:36 on 19 Jul, BBC National DAB Radio Off Air from 08:33 today to 10:34 today. [BBC]
link to this comment |
Saturday, 23 July 2016
Transmitter engineering
5:32 AM
5:32 AM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Off Air from 08:33 yesterday to 10:34 yesterday, BBC National DAB Radio Weak Signal from 10:43 on 19 Jul to 14:36 on 19 Jul. [BBC]
link to this comment |
Transmitter engineering
11:32 PM
11:32 PM
HEMEL HEMPSTEAD transmitter - DAB: BBC National DAB Radio Weak Signal from 10:43 on 19 Jul to 14:36 on 19 Jul, BBC National DAB Radio Off Air from 08:33 yesterday to 10:34 yesterday. [BBC]
link to this comment |
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