Freeview: Midhurst (West Sussex, England) full-Freeview transmitter
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Freeview on the Midhurst (West Sussex, England) transmitter

Google StreetviewGoogle mapBing mapGoogle Earth51.017,-0.701 or 51°1'2"N 0°42'4"WGU28 9EA

4G at 800MHz (at800) Freeview reception issues

When 800MHz 4G mobile broadband services start there will be 1 multiplex in the higher risk range (C21-23, C30, C59-60): C59: ArqA
See How do I know if the 4G broadband will overload my Freeview? and Full UK map of 4G issue areas for details.

Transmitter fauls and engineering works



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The symbol shows the location of the Midhurst transmitter which serves 94,000 homes.

Other maps:Midhurst regionBBC SouthMeridian (East micro region)

Radiation patterns

Radiation patterns withheld

Map key

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.

Midhurst transmitter Freeview broadcasts

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. The rating shown takes in account the output power level and the various Freeview transmission modes and do not indicate an ongoing fault.

MuxEffective power level, aerial positionRatingModeWatts
PSB1
BBCA
 horizontal
Maximum64QAM 8K 2/3
24.1Mb/s
DVB-T MPEG2		20,000
Channel icons
1 BBC One South, 2 BBC Two England, 7 BBC Three, 9 BBC Four, 70 CBBC Channel, 71 CBeebies, 80 BBC News, 81 BBC Parliament, 301 301, plus 12 others
• as a digital multiplex transmitted on frequency C55 (746.0MHz) from 299m datum.
PSB2
D3+4
 horizontal
Maximum64QAM 8K 2/3
24.1Mb/s
DVB-T MPEG2		20,000
Channel icons
3 ITV (Meridian (East micro region)), 4 Channel 4 South ads, 5 Channel 5 Part Network ads, 6 ITV 2, 13 Channel 4+1 South ads, 14 More 4, 28 E4, 33 ITV +1 (Meridian south coast),
• as a digital multiplex transmitted on frequency C56 (754.0MHz) from 299m datum.
PSB3
BBCB
 horizontal
Maximum256QAM 32KE 2/3
40.2Mb/s
DVB-T2 MPEG4		20,000
Channel icons
101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, plus 1 others
• as a digital multiplex transmitted on frequency C58 (770.0MHz) from 299m datum.
COM4
SDN
 horizontal
Above average64QAM 8K 3/4
27.1Mb/s
DVB-T MPEG2		10,000
Channel icons
10 ITV 3, 20 G.O.L.D. (not free), 25 Dave ja vu, 26 Home (not free), 27 ITV 2 +1, 30 5*, 31 5USA, 34 ESPN UK (not free), 38 Quest, 39 The Zone, 44 Channel 5 +1, 72 CITV, plus 22 others
• as a digital multiplex transmitted on frequency C54 (738.0MHz) from 299m datum.
COM5
ArqA
 horizontal
Above average64QAM 8K 3/4
27.1Mb/s
DVB-T MPEG2		10,000
Channel icons
 TV News,  TV Stars, 11 PICK TV, 12 Dave, 17 Really, 29 E4+1, 32 Movie Mix, 46 Challenge, 48 Food Network, 82 Sky News, 87 Community Channel, plus 9 others
• as a digital multiplex transmitted on frequency C59 (778.0MHz) from 300m datum.
COM6
ArqB
 horizontal
Above average64QAM 8K 3/4
27.1Mb/s
DVB-T MPEG2		10,000
Channel icons
15 Film 4, 18 4Music, 19 Yesterday, 21 VIVA, 24 ITV 4, 41 Sky Sports 1 (not free), 42 Sky Sports 2 (not free), 47 4seven, 83 Al Jazeera English, 85 RT English , plus 21 others
• as a digital multiplex transmitted on frequency C50 (706.0MHz) from 300m datum.


Regional news from the Midhurst transmitter


BBC South Today 1.3m homes 4.9%
from Southampton SO14 7PU, 51km west-southwest
to BBC South region - 39 masts.

ITV Meridian News 0.8m homes 3.1%
from Maidstone ME14 5NZ, 92km east-northeast
to ITV Meridian (East) region - 39 masts.

How the transmission frequencies change over time

years1984-971997-981998-20122012-133/10/12-2013-18
aerial groupC/D EC/D EC/D EC/D EC/D EC/D E
700C50ArqBArqBArqB
C54 SDNSDN
C55BBC2BBC2BBC2BBCABBCABBCA
C56+1 D3+4D3+4
C58ITVITVITVBBCBBBCBBBCB
C59+BArqAArqAArqA
C60+D
800C61BBC1BBC1BBC1D3+4
C62+ASDN
C64-C
C65+2
C68C4C4C4

orange background for multiplexes names moregreen background for transmission frequencieslilac background for power levels in watts800MHz band: 4G mobile to start in 2013700MHz band: possible 4G in 2019 more600MHz band: new or moved digital TV services more
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Wednesdays 29th February and 14th March 2012.

Comparison of old analogue and current digital signal levels

Analogue 1-4 100kW
BBCA, D3+4, BBCB(-7dB) 20kW
SDN, ARQA, ARQB(-10dB) 10kW
Mux C*(-16dB) 2.5kW
Mux 1*, Mux 2*, Mux A*, Mux B*(-17dB) 2kW
Mux D*(-20dB) 1000W

History of Channel 3 in the Midhurst transmitter area

• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Midhurst 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.


Your comments: most recent posts are at the bottom

firstFirst comments prevEarlier comments  ◊  Later commentsnext Latest commentslast

Your comments are always welcome. Please use the form below to add your thoughts or questions to this page. We will get back to you as soon as we can.

Transmitter engineering
Saturday 11 February 2012 4:30AM
MIDHURST transmitter - Analogue BBC TWO Weak Signal from 01:54 on 09 Feb to 01:56 on 09 Feb BBC TWO Off Air from 01:48 on 09 Feb to 01:53 on 09 Feb BBC TWO Weak Signal from 01:46 on 09 Feb to 01:48 on 09 Feb [BBC]
Transmitter engineering
Monday 13 February 2012 7:33AM
MIDHURST transmitter - Analogue BBC TWO Weak Signal from 04:53 today to 04:55 today BBC TWO Weak Signal from 01:54 on 09 Feb to 01:56 on 09 Feb BBC TWO Off Air from 01:48 on 09 Feb to 01:53 on 09 Feb BBC TWO Weak Signal from 01:46 on 09 Feb to 01:48 on 09 Feb [BBC]
Transmitter engineering
Tuesday 14 February 2012 4:32AM
MIDHURST transmitter - Analogue BBC TWO Weak Signal from 04:53 yesterday to 04:55 yesterday [BBC]
Transmitter engineering
Wednesday 15 February 2012 4:33AM
MIDHURST transmitter - Analogue BBC TWO Weak Signal from 04:53 on 13 Feb to 04:55 on 13 Feb [BBC]
Simon Ash
Monday 20 February 2012 2:57PM Petersfield
I live in Sheet just on the outskirts of Petersfield(GU31 5AB), and our current signal from Midhurst has deteriorated from poor to non existent due to the trees behind our house. My question is, will the boost on the signal strength in March help with this problem or not?
Many thanks
KMJ,Derby
Monday 20 February 2012 3:56PM
Simon Ash: The signal will be ten times stronger on the PSB muxes after switchover at Midhurst, so it is possible that you might notice an improvement in reception. However if the foliage is dense enough it could still block the signal, or give signal quality problems - what is analogue reception like currently? The Digital UK postcode checker suggests that a new transmitter due to enter service after switchover at Rowridge could offer good reception at your location. This transmitter does not offer the COM muxes until 18th April 2012, so best to try after that date if Midhurst is giving problems. Reception of Rowridge VP will require a group "A" aerial pointing SW with the rods set for vertical polarisation.
Transmitter engineering
Wednesday 29 February 2012 7:30AM
MIDHURST transmitter - Analogue BBC ONE Weak Signal; DSO related from 02:07 today [BBC]
Transmitter engineering
Wednesday 29 February 2012 9:33PM
MIDHURST transmitter - Analogue BBC ONE Off Air from 18:01 today to 18:03 today BBC ONE Weak Signal; DSO related from 02:07 today [BBC]
Transmitter engineering
Thursday 1 March 2012 4:32AM
MIDHURST transmitter - Analogue BBC ONE Off Air from 18:01 yesterday to 18:03 yesterday BBC ONE Weak Signal; DSO related from 02:07 yesterday [BBC]
FrustratedinHorsham
Thursday 1 March 2012 7:54PM Horsham
So switchover seems to have happened but I cannot get any of the channels listed under C or D

I really do not understand why these no longer work - tried to use the channels & frequencies quoted here but it doesnt pick up new channels.

Why oh why is this digital switchover so complicated? I thought the whole point is to make things easier...not harder! This has been an annoying & frustrating day. Still isnt it great to see my licence fee is put to such good use...
jb38
Thursday 1 March 2012 11:06PM
FrustratedinHorsham; The trade view reception predictor indicates that you should be able to receive all multiplexes but "only" from March 14th when switchover stage 2 takes place, this event requiring a re-tune.

The other point I noticed is that ArqB (Ch50) will be remaining on low power (1Kw) until October before it increases to 10Kw the same as the other commercial muxes, and although it is indicated as "good" for your area whether in reality it will or not is something that will have to be seen.

By the way the licence fee is not connected in any way to the purely commercial multiplexes such as SDN / ArqA / ArqB.
Transmitter engineering
Friday 2 March 2012 4:31AM
MIDHURST transmitter - Analogue BBC ONE Off Air from 18:01 on 29 Feb to 18:03 on 29 Feb BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb [BBC]
Steve
Friday 2 March 2012 8:24PM Godalming
After re tuning the digital receivers this week to get BBC2 due to the start of the switchover from the Midhurst transitter, the signals on groups C and D have gone from 40 - 50% on quality right up to 100%. So once again I can watch all of the channels that I lost a couple of months ago.
Transmitter engineering
Saturday 3 March 2012 4:31AM
MIDHURST transmitter - Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb BBC ONE Off Air from 18:01 on 29 Feb to 18:03 on 29 Feb [BBC]
Transmitter engineering
Monday 5 March 2012 4:31AM
MIDHURST transmitter - Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb [BBC]
Darren Ellis
Monday 5 March 2012 8:09AM Liphook
Transmitter engineering: Since retuning after the switch over we've lost the BBC Mux (channel55) from our Humax 8000T PVR. It just won't see it no matter what we do (deleting all channels, scanning with no aerial, manual scanning etc) even though it shows 80% strength on the screen. The TV plugged into it has no problem seeing all channels as do all the other TV's in the house. Any suggestions as we're loosing patience!
mrdtv
Tuesday 6 March 2012 12:29PM London
Darren Ellis:

Humax's have an option: FIRST TIME INSTALLATION. You have to run this. I am getting BBCA crystal clear in NW London from Hannington.
Mike Dimmick
Tuesday 6 March 2012 3:30PM
Darren Ellis: Normally I'd say that it didn't support 8K mode, but to the best of my knowledge, all PVR-8000T are compatible with it. My parents have one, and have had no problems since Hannington switched over.

Humax's website doesn't list any software downloads for this box at present; it's possible that there were some at some time. You'd have to email them to find out if your box is up-to-date and how you can get it updated.

It is possible that you now have too much signal, given that BBC A is 10 dB (10x) louder than before.
Neil Soane
Wednesday 7 March 2012 9:35PM Burgess Hill
Hi,

I seem to be short of certain freeview channels for my region here in Burgess Hill (coming off the Midhurst trans).

According to the list above I get (and have always got) everything other than MUX D, these channels have never appeared on my Sony TV (TV is a year old and on the latest firmware).

Do I assume that as of 14th March than all the MUX's will be up to full working power and this other batch of channels will appear then?

Thanks in advance.

Neil
Neil Soane
Wednesday 7 March 2012 9:40PM Burgess Hill
In addition I've just noticed a chunk of channels of MUX C that I don't receive either, is this is a similar problem to the MUX D channels?

The aerial installation was only about two years ago and was specifically put in for the digital upgrade.

Cheers again

Neil
Phil
Wednesday 7 March 2012 9:40PM Liss
Hi Brian
I have a Digivision Freeview box that periodically turns on the teletext on BBC channels; I get a 'please wait' message followed by the red button or index page without any input from me. It also occasionally changes channels without input eg it might keep defaulting to BBC1.

Any thoughts on cause?? I am on Midhurst transmitter - it was happening before and now after the recent part switchover on 29/02
Thanks Phil
Dave Lindsay
Wednesday 7 March 2012 11:50PM
Neil Soane: Mux D from Midhurst has the lowest transmission power of the lot at 1kW. Others are at 2kW and Mux D is 2.5kW. It's not quite as simple as that because there are different modes and some are more rugged than others.

I would try manually tuning if you can. If not, then (as sure as we can ever be) the increase in power next week should solve your problems.
John Davis
Thursday 8 March 2012 3:02PM
Neil Saone: Heathfield analogue ITV1 is on the same frequency as Midhurst MuxC right now, so where you are, you're not likely to get MuxC. I think you'll be alright from 14th March after the 2nd part of Midhurst DSO.
Transmitter engineering
Thursday 8 March 2012 7:30PM
MIDHURST transmitter - Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb BBC ONE Off Air from 16:22 today to 16:26 today [BBC]
Barry
Thursday 8 March 2012 9:52PM Steyning
Before 29 February I had a clear picture on BBC channels, but others such as ITV were pixelated most of the time. Since 29 Feb it is now the other way round. Thinking the problem may be to much boost I removed the 8 way booster and plugged the aerial directly into the TV. No signal. I put a new 4 way booster in place of the 8 way and still no signal. Put the 8 way booster back on and I’m back to the starting point. This problem is a 37 inch TV. But on a 23 inch TV no problems at all, reception on all the channels is good. Any ideas.
Postcode BN44 3YW
Transmitter engineering
Friday 9 March 2012 1:31PM
MIDHURST transmitter - Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb BBC ONE Off Air from 16:22 yesterday to 16:26 yesterday [BBC]
Darren Ellis
Friday 9 March 2012 5:54PM Liphook
Hi all,
We have contacted Humax (re: loss of BBC channels on PVR 8000T) and all they keep saying is do a manual tune. We have tried this, along with the factory reset, tuning with no aerial etc. etc, but all to no-avail. Not sure what else we can do, will things return to normal after 14th March or will the BBC Mux still be on far more power than the others (which has been hinted could be our problem, but how too much power affects only one device we don't understand)
Are we going to be forced to throw the Humax away and buy another one?
Any suggestions gratefully received.
jb38
Friday 9 March 2012 9:27PM
Darren Ellis: Purely out of interest can you actually receive the low powered (2Kw) ITV1 & ITV3 muxes? as you are not predicted as being able to do so until March 14th.

However the point of this being, that if you can receive the aforementioned channels then unlike what the predictor suggests you are likely to be located in a lucky spot for reception, the downside of this being that the much higher powered BBC (20Kw) mux at only 6 miles away could well be causing your PVR to suffer from signal overloading problems, as the tuner fitted in that model (albeit of older design) is more sensitive than some found around, but because of this otherwise plus point is likewise more sensitive to be overloaded.

To eliminate the possibility of an excessive signal applying, if you have access to a set top aerial then just for a test plug that in and carry out another manual tune on Mux Ch55 and see if anything comes up, if it does it doesn't really matter what like it might be (severe glitching on picture etc) as the main point of the exercise is whether or not you get anything.

Should this procedure bring results, then you will require to fit an attenuator of at least about 10dB or so in line with the aerial socket of the Humax to slightly kill the signal level, as come switchover ITV is also likely to vanish "if" the problem is caused by signal overloading.

On the other hand though, if nothing you do signal reduction wise results in the BBC being received then even although the 8000T is seen listed as being 8k compatible it might not be quite so stable as Humax maintains, the proof if this being if ITV1 also vanishes on the 14th.
Transmitter engineering
Saturday 10 March 2012 4:30AM
MIDHURST transmitter - Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb BBC ONE Off Air from 16:22 on 08 Mar to 16:26 on 08 Mar [BBC]
Darren Ellis
Saturday 10 March 2012 5:39PM Liphook
Hi JB38,
Thank you so much for your advice. We disconnected the Humax and plugged it directly into the aerial lead from the aerial on the roof (no booster) and tried to tune it. We received no channels at all, the signal strength was down to around 20% with very poor quality on all channels/muxs. We then plugged in just a booster and that directly into the Humax and tuned. We were back to square one with 80+% strength and no quality on channel55/BBCMux and around 60% strength and 100% quality on all the other 5 channels/mux's, even channel65 with ITV1 and 2 etc. We're going to wait until after the 14th March and see what happens and make a decision then.
Thanks for all your advice, if anyone has any more ideas we'll welcome them.
jb38
Saturday 10 March 2012 9:47PM
Darren Ellis: Thanks for that update on the situation having taken note of all you have reported, however on analysing same I have to say that I feel that your BBC problem could still be because of signal overloading thats causing instability to occur in the Humax 8000's receiver.

I have to point out that the aspect about being in this type of situation that can be "very" misleading to many is that the strength / quality indications seen on the receiving equipments indicators can in most cases be "exactly" the same as that obtained if from a weak signal, this being as the result of the excessively high RF level in the tuners front end causing partial instability to occur, and with this having a knock on effect in the oscillator circuitry dependant on the channel selected, the aforementioned instability corrupting an otherwise clean digital signal resulting in it only being partially measured hence the low readings. (exp somewhat simplified)

Needless of course to say, that the important part of a digital signal, namely its quality is always first to suffer when instability strikes, and as the instability level rises the quality is frequently seen to drop to zero, this exactly what you experienced when you plugged the booster back in.

I do of course realise that you cannot receive the lower powered multiplexes without the booster, but as mentioned in my original posting you are not really officially predicted to be able to receive them properly at present, and although you obviously can do with the booster I feel that you might be paying the penalty of having them by causing the tuner to be overloaded.

If its at all possible I would still like if you could manage to try a set top aerial in the manner previously described, as the outdoor aerial straight into the Humax without the booster is still not as good a test, especially where an 8000 is involved, but should this not be possible then I will look forward to a further update come the 14th as that will be the day of reckoning, so to say! as then if its not a signal overload problem then it doesnt leave anything else other than the not so nice issue of 8k compatibility.

Darren Ellis
Sunday 11 March 2012 8:46AM Liphook
Thanks again JB38.
We'll see if we can lay our hands on a set top aerial and carry out your suggestion. We'll see what happens after next Wednesday too.
Thanks again for your advice, of all the people to respond (including Humax who have been no help at all) your suggestions have been the most helpful.
Stephen
Sunday 11 March 2012 4:38PM
Hi there, really glad I found this link.. We live in Chichester and do not know much about the switchover ( even though we are trying to learn ) however we seem to have gone down to 29 channels from 89 via our bush LCD42911FHD3D , 42 inch tv we only just bought! It has an inbuilt "Freeview" tuner and we didnt have any problems before last week, Now suddenly we have terrible signal.. the 29 channels we do have keep cuting in and out /pixilating too. Could anyone help with this? Im guessing the March 14th date everyuone mentions is part of the reason? Cheers,
Stephen and Joanna
Martin
Sunday 11 March 2012 5:39PM
Darren Ellis:
Just thought I'd comment that we are near you (Greatham) with a Humax 8000T and it has no problems (either before or after 14 March).

We just did a full default setup and all channels came in no problem.

We have a televes DAT 45 active aerial and 4 way amplifier/splitter on the roof. I installed this in 2006.

Just so you don't throw away your 8000T!
Dave Lindsay
Sunday 11 March 2012 6:25PM
Stephen: Which channels are you getting now (but pixelated)?

See if there are logical channel numbers 800 and upwards.
jb38
Sunday 11 March 2012 8:53PM
Martin: Although on-site reception reports (which I welcome) are always useful in building up a picture of what like things are like in certain area's, a fact that must always be remembered is that when in an iffy area for reception such as applies all around Liphook and district, is that the signal strengths received at a given spot can be found to vary quite widely even over a few yards or so, let alone at the up to three miles or so away such as is indicated exists between yourself and Darren.

As I am unaware of your exact location I carried out a check using a test code on Greathams post office and which revealed the area as being slightly worse for reception than Liphook, with an element of this still applying after switchover, and its because of this fact that I feel you are in effect "getting away" with the aerial system you are using, as its almost certain that you wouldn't if in a slightly better signal area, this even allowing for the slightly misleading gain figures claimed for aerials such as the DAT45, and indeed a number of others due to the fact that the figures are mostly obtained when under a strictly controlled test situation, this never at any time being replicated in practice hence are very much lower.

Signal overloading problems is nothing new, as its something almost guaranteed to be experienced by a handful of people in practically every area in the UK where high powered switchover has taken place at the main transmitting station that serves them.

I will agree with your comment regarding the 8000T though, at least for the time being.

jb38
Sunday 11 March 2012 9:07PM
Darren Ellis: Regarding the set top, yes, I would be interested to know the result, but keep me posted with regards to events after the 14th when a re-tuning event takes place as well as ITV powering up and changing its transmission mode, although its April 25th before ArqB (Mux Ch50) powers up and with a break until the next event takes place on Oct 4th.
jb38
Sunday 11 March 2012 9:11PM
Darren Ellis: Sorry, should have said, a not as yet published date in October and not the 4th.
Transmitter engineering
Monday 12 March 2012 12:30PM
MIDHURST transmitter - Analogue BBC ONE Off Air from 16:22 on 08 Mar to 16:26 on 08 Mar BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb [BBC]
Dr T J Purnell
Monday 12 March 2012 10:34PM Petworth
Sir/Madam,
Midhurst Transmitter
can you please tell me if we will be able to receive 'Group D horizontal' stations such as Yesterday and Film 4 after the switchover and increased power on March 14. I cannot find this info on your website.

My postcode is GU28 0RA

Dr T J Purnell
Mark Fletcher
Tuesday 13 March 2012 12:43AM Halifax
Dr T J Purnell.Petworth,GU28 0RA.Hopefully you should still be able to (just initially) receive the group C/D horizontally polarised ArqB multiplex i believe you're referring to come the early hours of tomorrow morning Wednesday 14 March 2012 when the four remaining analogue stations BBC1,ITV1,Channel's 4 & 5 are forever switched off and the 20kw higher powered DSO2 signals on D3+4,BBCB (HD) and SDN are switched on.BBCA (20kw) already switched on Wednesday 29 February 2012.However if you look carefully above "After switchover frequency notes" it states that ArqA will until further notice be reactive power restricted to 5kw "if required",while ArqB will until further notice be restricted to 1kw.I believe this until further notice could last up to the early hours of Wednesday 27 June 2012 as some South/South East England main transmitters and their dependent relays are either already fully switched,Hannington just recently,(some with restrictions such as the commercial multiplexes at both Sudbury and Oxford presently),in the process of going fully digital Midhurst tomorrow (Wed 14 Mar 2012) and Rowridge (on Wed 21 March 2012),or soon to switch such as Crystal Palace (Wed 4/18 Apr 2012),Heathfield (Wed 30 May/13 Jun 2012) and both Bluebell Hill and Dover main transmitters at the same time (Wed 13/27 Jun 2012).
KMJ,Derby
Tuesday 13 March 2012 8:38AM
Dr T J Purnell: Further to what Mark Fletcher posted above, At present MuxD/ArqB shares a frequency with Whitehawk Hill, which is likely to block reception of this mux at your location. From Wednesday 14th March 2012 the frequency of ArqB will be C50 from Midhurst. The Digital UK postcode checker predicts that you will then have good reception of this mux, although the power will be low at 1kW initially you are not very far away from the Midhurst transmitter.
Transmitter engineering
Wednesday 14 March 2012 4:30AM
MIDHURST transmitter - Freeview BBC Digital TV Off Air; DSO related from 01:54 today Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb to 00:06 today [BBC]
Transmitter engineering
Wednesday 14 March 2012 6:27AM
MIDHURST transmitter - Freeview BBC Digital TV Off Air; DSO related from 01:54 today to 02:10 today Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb to 00:06 today [BBC]
Phil
Wednesday 14 March 2012 7:40AM Pulborough
I live at RH20 3EZ - using the Midhurst transmitter.

There's excellent signal strength gor BBCA and ARQA muxes, but poor strength on D3+4.

Given that the signal strength for BBCA and D3+4 should be the same (20kW) and ARQA is lower (5kW), why should this be the case?

Thanks,

Phil
The Apex Team
Wednesday 14 March 2012 9:03AM
Hi everyone. We are a local Aerial and satellite specialist company. We are out and about today doing retunes starting from Petersfield - Haselmere- Petworth. If anyone struggling or need advice we are happy to help. www.apexaerial.co.uk
Steve
Wednesday 14 March 2012 11:29AM Chichester
Additional info re reception in PO20 7BG using Midhurst TX. Rechecking and all COM6 ArqB channels are missing.
My box tracks all the signal strengths it finds at between 75-87%.
I note that ArqB is power restricted at 10% of it's capability until further notice (so that's the problem) - so it's 1 step forward and 2 steps back!
Dave Lindsay
Wednesday 14 March 2012 1:24PM
Phil: A look at the Digital UK Tradeview predictor for your post code (click the link next to your posting) is interesting.

For all multiplexes from Midhurst, it regards 100% of the post code area "served" (on its criteria). However, C61 (D3&4) is 96% "served" and 100% "marginal", so too is BBC B (HD services) on C58. The key here is not the absolute values, but the relate difference of these two multiplexes.

This could perhaps be a suggestion that there is another transmitter whose signals might be detrimental to reception of these multiplexes from Midhurst at this location.

In October this year, D3&4 is due to move to C56, and that too has the same 96% served prediction.


I've looked at the transmitters which use C61 and I've not come to any definate conclusion. Mendip uses C61 and C58. It also uses C56 at the same power as 61 and 58.
Transmitter engineering
Thursday 15 March 2012 4:30AM
MIDHURST transmitter - Freeview BBC Digital TV Off Air; DSO related from 01:54 yesterday to 02:10 yesterday Analogue BBC ONE Weak Signal; DSO related from 02:07 on 29 Feb to 00:06 yesterday [BBC]
Phil
Thursday 15 March 2012 9:45AM Liss
Hi
I am at GU33 7AH. Before switchover we could only get BBC channels - Following switchover on the 14th we are unable to receive programmes on channel 62 (ITV3 etc on SDN).
There seems to be a weakness on 59 and 50 but they do come through.
62 shows signal strength at around 68% and quality fluctuating from 0 - 50% on my Humax box

Any thoughts and will this improve
Thanks Phil



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