menuMENU    UK Free TV logo Freeview

 

 

Click to see updates
Choose from four options: ■ TV mapping ■ TV terrain plot ■ TV technical ■ Radio

Freeview reception at PGSTART 100


Comments
Thursday, 23 May 2013
L
Laura Sharpes
4:57 PM

I'm based in the Wirral area and I think I may have some 4G interference. Can you confirm this?

link to this comment
Laura Sharpes's 1 post GB flag
H
hey na na whats my name?
5:12 PM

what is COFDM short for? thanks

link to this comment
hey na na whats my name?'s 1 post GB flag
M
Michael
sentiment_satisfiedGold

5:32 PM

Laura Sharpes: Unless you are managing to pick up 4G signal from South-east London or Brighton (which is impossible) then you do not have 4G interference. Though I'm curious as to how you would be able to tell what 4G interference looks like!

link to this comment
Michael's 358 posts GB flag
Briantist
sentiment_very_satisfiedOwner

6:26 PM

hey na na whats my name?: Coded Orthogonal Frequency-Division Multiplexing...

Orthogonal frequency-division multiplexing - Wikipedia, the free encyclopedia

link to this comment
Briantist's 38,915 posts GB flag
Friday, 24 May 2013
Dave Lindsay
sentiment_very_satisfiedPlatinum

3:08 PM

Ash: There are a number of factors to be aware of and consider.

The COM channels from Waltham are at half power to the PSBs, the former being 25kW and the latter being 50kW.

All channels from Sutton Coldfield are 200kW.

Looking at Streetview and satellite images there are quite a few trees in your area that may perhaps rule out, or otherwise make difficult, reception from one or both transmitters.

Sutton Coldfield carries West Midlands programming and Waltham carries East Midlands programming.

You don't have clear line-of-sight to either transmitter.

The Derby transmitter, situated in Littleover at the Fire Service HQ, relays Waltham's PSB channels. It is on practically the same bearing as Sutton Coldfield and may be available to you. Its purpose is to provide East Midlands programming to those who otherwise receive from Sutton Coldfield. It does not carry the COM channels so you would have to rely on Sutton Coldfield for them.

For a list of PSB and COM services, see:

DTG :: DTT Services by Multiplex

In order to receive from Derby you may have to resort to manual tuning.

link to this comment
Dave Lindsay's 5,724 posts GB flag
G
Graham Cole
9:55 PM
Treorchy

The aerial is on my chimney, approximately 13 metres above ground. It receives Freeview Light from Rhondda at Llwynypia. For the last 16+ years it has entered a powered booster/splitter box in the loft. A loft-installed hi-fi aerial also enters the box, from which three coax cables serves three tvs and separate cables to three hi-fis. This system has worked without problem at all times and since Digital changeover, until recently. All BBC channels suffer from pixelation intermittently. On my Samsung tv the maximum signal strength is shown as 50 with small bit error readings, and it just about copes but when the problems arise the SS reduces to mid 30s or less and the Bit error shows major fluctuations and sometimes no signal. The other tvs are Panasonic and they cope better but still pixelate on occasions. The other channels show 70 with no BE activity, and very good pictures. My immediate neighbours with the same line of sight to the transmitter but from an aerial at half the height have no problems. It seems to me that the potential problems point to the aerial and or splitter/booster box. I am 75 and can no longer access my loft to check. I am sorry to bother you but would appreciate any views and advice. Thank you.



link to this comment
Graham Cole's 6 posts GB flag
Graham's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Dave Lindsay
sentiment_very_satisfiedPlatinum

10:16 PM

Graham Cole: I would suggest that the signal amplifier is pushing the level of the signal up too high:

Freeview signals: too much of a good thing is bad for you | Digital switchover | ukfree.tv - 10 years of independent, free digital TV advice

If this is the issue then it may be that it is just managing to cope with it at 50%. At times it goes higher.

Think of turning the sound up on a piece of audio equipment where eventually the sound will distort and you loose quality. That's effectively what is happening if your TV signal is too high.

link to this comment
Dave Lindsay's 5,724 posts GB flag
Saturday, 25 May 2013
G
Graham Cole
9:25 AM
Treorchy

Thank you Dave for your very swift response, which I have only just read. Having looked at the link, how can I check if the problem is as you suggest, and, if so, will I need attenuators on each set, or cables in the loft , or one on the feed into the booster/splitter box. On reflection, I cannot remember whether the loft box is a booster/splitter or merely a splitter. If it is the first would it be better with a splitter only? Thank you for your patience with a 'silver surfer'.

link to this comment
Graham Cole's 6 posts GB flag
Graham's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Select more comments

Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

UK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.








Privacy policy: UK Free Privacy policy.