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Full Freeview on the Hannington (Hampshire, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.308,-1.245 or 51°18'28"N 1°14'43"Wsa_postcodeRG26 5UD

 

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 25/03/2024 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
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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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 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

PSB2
D3+4
 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),

PSB3
BBCB
 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

COM4
SDN
 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 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 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

COM6
ArqB
 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), 61 GREAT! movies extra, 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
EEEB E TW T
C32com7
C34com8
C35C5wavesC5waves
C39BBC1wavesBBC1wavesBBC1waves+BBCBBBCB
C40SDN
C41SDN
C42ITVwavesITVwavesITVwavesD3+4D3+4
C43ArqA
C44ArqA
C45BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C46ArqB
C47ArqB
C51tv_off_local
C55tv_offcom7tv_off
C56tv_offCOM8tv_off
C66C4wavesC4wavesC4waves

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.

Comments
Friday, 9 August 2013
J
jb38
sentiment_very_satisfiedPlatinum

7:30 PM

Stuart.Lillie: BT are not involved with the transmission side of the equation and what you have reported indicates that you are receiving a poor quality signal from the COM6 multiplex.

Further advice can only be given with knowledge of your post code, or at least one from somewhere nearby e.g: a shop/post office as it impossible to assess the situation without this info.

If by any chance you are receiving from Hannington then engineering work is in progress at that station.



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jb38's 7,179 posts GB flag
Sunday, 11 August 2013
C
Carl Amey
6:41 PM
Southampton

We live in Southampton SO18 2QF which is a no go for the IoW transmitter, therefore Hannington has always delivered the goods. Recently (over the past few weeks) all channels which are part of ARQB (channel 47) are extremely low quality and sometimes non existent. The signal strength according to our PVR is 10/10, but the quality is very low with errors reported. All other channels are 10/10 in strength and quality. I have noticed the problem is at it's worst on a sunny afternoon. We are using a loft aerial which I purchased and installed in 2008 along with a basic Argos signal booster. The aerial input is directly into the booster then straight into the PVR. No other devices are connected.
Any suggestions as to what could be causing this would be appreciated! Surely it's not just the weather?! I have also replaced all coax cables with new leads and also replaced the booster.

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Carl Amey's 4 posts GB flag
Carl's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
J
jb38
sentiment_very_satisfiedPlatinum

9:23 PM

Carl Amey: Although I cant really speak as far as the last few weeks are concerned, but Hannington was listed on the engineering notice board as being liable to periods of interruption from last Monday 8th, this may even apply to next week although I am unable to verify either way as the engineering notice board will not be updated until either late on tonight or early tomorrow morning

However, on a quick check around your area I noticed one or two properties with their roof mounted aerials effectively pointing into trees, one particular property at the high side of Lingfield Gardens / Northfield Road intersection with an aerial apparently pointing directly towards two large trees, the problem being that the trees in question are sitting directly in line with the signal path from the Hannington transmitter, this being the type of situation that invites erratic reception as trees at this time of the year are notorious for causing reception problems.

A point to note being, that this type of situation does necessarily affect all multiplexes in an even fashion as it depends on the level that the signals are received at in the first place, those at a lower level being affected to a greater degree, and of course COM6/ArqB Ch47 is radiated at half the power of the PSB channels.

Should the situation described apply to the positioning of your own aerial, then whether it be loft mounted or not you are still liable to suffer from problems now and again.

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jb38's 7,179 posts GB flag
Monday, 12 August 2013
C
Carl Amey
8:38 PM

Hi jb38. Many thanks for the reply. I can confirm today the signal quality of ch47 is far better than yesterday. In fact, this morning the quality was fair, however, at four pm the quality had deteoriated once again. Our aerial is in the loft and is not obstructed by trees, it points directly towards the transmitter in hannington. Our issue seems to be related to hot weather, however crazy that sounds. Yesterday was very warm in the afternoon. Is ch47 likely to increase in power any time soon? Our circumstances or tech at home have not changed. The aerial has not moved since I installed it in March 2008.

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Carl Amey's 1 post GB flag
J
jb38
sentiment_very_satisfiedPlatinum

11:37 PM

Carl Amey: I had a check at the engineering notice board and see that Hannington has now been removed from the list but though with Rowridge now being mentioned, its HD service being off air for 50 minutes this afternoon.

As far as Hanningtons COM6/Ch47 is concerned the power that its presently operating at is the final situation and so nothing will alter on the transmission side of things, that said, if you are the type that can spare 30 minutes or so to experiment with your aerial then the next time your C47 signal takes a dive you might possibly find that the situation could be improved by slight repositioning of the aerial to the left or right of its present mounting position, this of course having to be carried out whilst your TV is left sitting on Ch47's signal check screen to provide instant feedback on the results of your actions.

The other point being, although I do realise that aerials in your area are seen to be facing towards Hannington, but though have you ever tried to receive a signal from Rowridge since it switched over to high powered operation? especially where it involves its vertically polarised 200Kw transmissions, as the terrain indicator shows a clear line of site situation up until a "very" short distance away from where you are located, and even although the signal is shown to be obstructed its not by any means severe when compared to some other situations I know where reception is possible albeit via diffraction, this being signal bending.

To check if reception is possible from Rowridge on the rear of your aerial even although its roughly 10 degrees out, you should try a test by going into your TV or boxes "manual" tuning facility (should it have one!) and enter Rowridges COM6 on mux Ch28 but do NOT press search or scan, as on most devices if its possible to pick up a signal the strength / quality that its being received at will be seen.

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jb38's 7,179 posts GB flag
Tuesday, 13 August 2013
P
Paul Nickson
1:43 PM
Newbury

We're experiencing picture break-up on BBC channels in the RG20 9DF area. We have two aerials and the performance is the same on both. This seems to be signal strength issue.

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Paul Nickson's 1 post GB flag
Paul's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
C
Carl Amey
8:28 PM

Update: INTERFERENCE SOLVED

In response to your suggestion jb38 I have access the manual tuning function and inspected ch28, the strength was very good, but the quality was ~10%, but i did not move our aerial. I suspect moving the aerial may well improve the quality.

As a side, I have now resolved the issue! I hope this will help others... The solution?

HDMI / Coax interference. In summary, I have moved our booster away from the other mains cables and the HDMI leads going in / out of the AV receiver. The HDMI leads have also been moved away from the coax aerial feed which when moved drastically improved the quality of ch47. I replaced the fairly cheap HDMI lead going from the PVR to the AVR with a spare I had (which appeared to be of a better quality, look and feel anyway) and the quality of ch47 shot up to 100%. All other channels are also 100%.

Now, why this affected just one frequency / channel, I have no idea, but the conclusion is that interference can occur between HDMI and Coax circuits. I have done a small amount of digging on line and others have reported similar issues including interference from games consoles vs certain freeview channels or their entire reception. So, in my case it would appear a better quality HDMI lead from the PVR to AVR helped reduce the interference. I hope this makes sense, and I hope it will help others. Thaanks for taking the time to reply jb38.

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Carl Amey's 4 posts GB flag
C
Carl Amey
8:35 PM

Paul Nickson - check your cables, HDMI and coax in particular. See my post above.

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Carl Amey's 4 posts GB flag
J
jb38
sentiment_very_satisfiedPlatinum

9:46 PM

Carl Amey: Well although I am certainly pleased to see that your Ch47 problem has now been rectified by the changes you have made such as replacing the HDMI cable and generally repositioning the leads, however its still a bit puzzling why the problem you were experiencing had an apparent time factor built into it "if" none of your equipment was being moved around.

Thanks for your report regarding the test on Rowridges Ch28, this actually being quite a good indication when taking into account the fact that you are obtaining this on the rear of an aerial that is positioned around 10 degrees or so out from a true 180 reverse pick up, and so its very likely that the signal quality would greatly improve if at any time the aerial was correctly positioned, although this is really something that is a bit academic anyway now that your reception is back to normal.

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jb38's 7,179 posts GB flag
Wednesday, 14 August 2013
C
Carl Amey
6:23 AM

No problem. We have tried using Rowridge in the past with little success. The terrain maps offered by this site indicate that the signal is pretty much a no go and the official digital tv sites all suggest Hannington as a priority. I am happy to try other channel tests using our aerial where it is if that help you jb38. Our location here in Southampton is also half way up a hill which is almost the tallest point in the city.

The time of day weirdness surrounding the quality of ch47 is indeed very odd. There was a notable difference in the morning vs the evening. The only difference that was obvious was the temperature outside and in our loft and surrounding our equipment. The lounge is much warmer in the afternoon with the sun beating in.

One other thing to note, we are on the flight path for the airport, but this has never caused any issues with the signal in the 7 years we have lived here.

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Carl Amey's 4 posts GB flag
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