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Full Freeview on the Hannington (Hampshire, England) transmitter

first published this on - UK Free TV
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The symbol shows the location of the Hannington (Hampshire, England) transmitter which serves 470,000 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 Hannington (Hampshire, England) mast?

Hannington transmitter - Hannington transmitter: Possible effect on TV reception week commencing 13/05/2024 Pixelation or flickering on some or all channels Digital tick

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name

Which Freeview channels does the Hannington 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.

 H max
C45 (666.0MHz)362mDTG-50,000W
Channel icons
1 BBC One (SD) South, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 17 others

 H max
C42 (642.0MHz)362mDTG-50,000W
Channel icons
3 ITV 1 (SD) (Meridian/Central (Thames Valley micro region)), 4 Channel 4 (SD) South ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Meridian south coast),

 H max
C39+ (618.2MHz)362mDTG-50,000W
Channel icons
46 5SELECT, 101 BBC One HD South, 102 BBC Two HD England, 103 ITV 1 HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

 H -3dB
C40 (626.0MHz)362mDTG-825,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H -3dB
C43 (650.0MHz)359mDTG-825,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H -3dB
C46 (674.0MHz)359mDTG-825,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Which BBC and ITV regional news can I watch from the Hannington transmitter?

regional news image
BBC South Today 1.3m homes 4.9%
from Southampton SO14 7PU, 46km south-southwest (194°)
to BBC South region - 39 masts.
regional news image
ITV Meridian News 0.9m homes 3.4%
from Whiteley PO15 7AD, 48km south (179°)
to ITV Meridian/Central (Thames Valley) region - 15 masts.
Thames Valley opt-out from Meridian (South). All of lunch, weekend and 50% evening news is shared with all of Meridian+Oxford

How will the Hannington (Hampshire, England) transmission frequencies change over time?

1984-971997-981998-20122012-1318 Apr 2018

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 8 Feb 12 and 22 Feb 12.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 250kW
Analogue 5(-6.2dB) 60kW
BBCA, D3+4, BBCB(-7dB) 50kW
com7(-8.3dB) 36.7kW
com8(-9.8dB) 26.2kW
SDN, ARQA, ARQB(-10dB) 25kW
Mux 1*, Mux 2*, Mux A*, Mux B*(-11dB) 20kW
Mux C*, Mux D*(-14dB) 10kW

Which companies have run the Channel 3 services in the Hannington transmitter area

Aug 1958-Jan 1992Southern Television
Jan 1982-Dec 1992Television South (TVS)
Jan 1993-Dec 2006Meridian
Dec 2006-Feb 2009ITV Thames Valley
Feb 2009-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Hannington was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Tuesday, 30 January 2018

2:52 PM

Roger Scott: Forgot to add, that if you are getting a significant signal on Ch.29 from your Hannington aerial (the mux aimed at Reading) then this will be a much more difficult issue to resolve at this time, also after March 21st this year COM7&8 at Crystal Palace move to Ch.55&56. These muxes at Hannington move to Ch.55&56 on April 18th. So it's possible that your current diplexer will give you a working solution after that date.

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Chris.SE's 4,182 posts GB flag

3:24 PM

Roger Scott: OOOps, sorry, my last statement is incorrect as the Local Muxes are also moving channel.
Crystal Palace is moving from Ch.29 to Ch.35 on March 21st (with apparently some increase in power - not sure of detail), and Hannington is moving from Ch.51 to Ch.32 on April 18th and the other local Mux on Ch.29 is moving to Ch.34 on that date.
So a standard diplexer is not going to provide a solution, whereas a low loss splitter might.
Also with COMs 7&8 on Ch.55&56 from both transmitters after that date, though they are SFNs you hopefully won't have a problem, but you definitely shouldn't if your Crystal Palace aerial is a Group A aerial and so won't get Chs.55&56 with any decent strength.

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Chris.SE's 4,182 posts GB flag
Roger Scott
11:09 PM

Chris. Thank you very much for this information. It seems that I won't really know the outcome until these other frequency changes are done in the spring. For the moment I have refitted the diplexer so am back with the BBC4HD signal problem but I can use my Sky box to watch this channel. My Crystal Palace aerial is definitely an A group and the Hannington aerial is possibly a B group as in the anologue days Channel 5 on channel 66 always had a snowy picture. It would seem with the frequency changes ideally the aerials should be wide band. I image that there are similar frequency changes in other regions as well in preparation of loosing the 700 MHz band

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Roger Scott's 9 posts GB flag
Wednesday, 31 January 2018

11:48 PM

Roger Scott:

Instead of using a diplexer feeding two aerials into one TV, you may well do better to have a coaxial switch that is fed by both aerials. You can then switch between Hannington and Crystal Palace without getting any problems of interference between the signals. Plus there would be less signal loss.

When I live in Swindon, I used one so I could get both Mendip and Oxford signals and watch Central South as well as BBC West. It worked very well for me so it should be ideal for you, certainly better than using a diplexer with its losses and risk of serious interference on some multiplexes that share the same channel.


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MikeP's 3,056 posts GB flag
Thursday, 1 February 2018
Roger Scott
10:22 PM

MikeP. Thanks for that suggestion which does make sense. The only problem I have is that the aerial feeds go into the loft where the diplexer is and from there I have one coax feeding down to the TV. Obviously it's not practical to go into the loft every time I want to change regions so I will need to fit an additional coax from the loft to the TV so that I can fit the change over switch by the TV

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Roger Scott's 9 posts GB flag
Roger Scott
10:29 PM

MikeP. Thank you for your suggestion which does make sense. The problem I have though is that both aerial feeds go into the loft where the diplexer is and from there I have one coax going down to the TV. Obviously it's not practical to go into the loft every time I want to change regions so I would need to run another coax from the loft to the TV so that the change over switch is near the tv

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Roger Scott's 9 posts GB flag
Tuesday, 13 February 2018
Keith Farrington
5:27 PM

Help! I am in the RG31 post code area and receive signal from Hannington transmitter. Since the beginning of February I have been having problems with low signal quality. I have been monitoring this on my TV diagnostics facility now for 10 days. I noticed that the problem started at around 16:30 each day, including Saturday and Sunday. Before 16:30 signal quality is reliably at 100%. After 16:30, signal quality plummets to below 10% and regularly below 7%. This situation lasts for 70-75 minutes, when the signal quality becomes 100% again. Note that the signal strength does not drop, at least until the low signal quality causes 'no signal'

It appears that something is switched on at 16:30 and interferes with the Hannington signal. 75 minutes later it is switched off and the interference disappears.

What can I do to identify exactly what is going? I do not believe it is 'induction' interference from other appliances, as I am quite familiar with that.

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Keith Farrington's 4 posts GB flag

10:21 PM

Keith Farrington: Since it sounds exactly like single source interference, why would you reject that possibility?

In the meantime, at least check all your cables - if they are poorly shielded, etc, then that will make the problem much worse.

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MikeB's 2,579 posts GB flag
Wednesday, 14 February 2018

10:30 AM

Keith Farrington:

As a matter of interest, do you havce a 'smart meter' fitted? Some have been saying they are getting interference from the meter's WiFi system.

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MikeP's 3,056 posts GB flag
Thursday, 15 February 2018
Keith Farrington
3:50 PM


Thanks for that idea. I don't have a 'Smart Meter' fitted yet.

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Keith Farrington's 4 posts GB flag
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