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My ITV/C4 Freeview channels have disappeared - what can I do? Is it my SCART ca

My ITV/C4 Freeview channels have disappeared - what can I do? Is it my SCART cable?

My ITV/C4 Freeview channels have disappeared - what can I do?
published on UK Free TV

It is a feature of television signals that they can be effected by the weather. Aside from the obvious damaged that can be caused by wind or torrential rain, the onset of summer can cause a more intriguing problem called "inversion".

Basically, when the sun heats up the land, the hot air can get trapped below cold air at high level. This creates an "inversion layer" which acts like a polished mirror to TV signals. This causes two problems: you can receive both the original and a reflected signal from your own transmitter (on analogue TV this appears as "ghosting") or interference from TV transmitters that are normally too far distant.

The ITV/C4 multiplex of channels (ITV-1, ITV-2, ITV-3, ITV-4, CITV, C4, More4, E4, Quizcall) use a transmission "mode" called 64QAM, and it is sadly much more prone to these problems.

So, whilst a loft-mounted aerial will provide reception at some time, it will fail at others. The only real solution is to mount the aerial (or a new Class I aerial) outside on a pole, but some people report that changing the cable from the aerial to the set-top box to the high-grade satellite cable can also help.

The SCART connection, by the way, only carries a single TV picture, not the Freeview transmission multiplexes, so if this is disconnected it will result in degradation to every channel at once.



All questions
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In this section
My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound o1
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Comments
Friday, 9 December 2011
T
t mc entee
10:54 AM

itv missing free view box aerial on roof what can i do

link to this comment
t mc entee's 1 post GB flag
M
Mark Fletcher
sentiment_satisfiedGold

11:12 AM

t mc entee.You didnt leave a full post code or destination.Without this information we cannot assist you as such !

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Mark Fletcher's 673 posts GB flag
Wednesday, 14 December 2011
Thursday, 15 December 2011
N
nigel ferris
10:10 PM

i have a hd fox t2 but have lost some channels that i can not get back. i have tried re tuning but makes no difference

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nigel ferris's 1 post GB flag
Friday, 16 December 2011
J
jb38
sentiment_very_satisfiedPlatinum

8:07 AM

nigel ferris: As you are making a query involving reception its impossible to assist without knowledge of your location, this preferably in the form of a post code.

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jb38's 7,179 posts GB flag
Monday, 19 December 2011
T
Tracey
4:13 PM

I am getting so fed up of itv and the ITV+ /ch4/ch5 chamnels either having no signal or a bad signal. All the BBC programmes are always perfect.

I have a TV with built in freeview and internal loft mounted Digtal aeriel. I have on numerous occasions rescanned only to lose the stations completely I am in the Slough SL1 area and this is such a problem more so when the slightest bit of rain its soo frustrating having to watch catch up tv the next day really defeats the point of having a TV licence!!1

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Tracey's 1 post GB flag
Tuesday, 20 December 2011
Briantist
sentiment_very_satisfiedOwner

8:40 AM

Tracey: Please see Single frequency interference | ukfree.tv - independent free digital TV advice .

Loft aerials are not suitable for reliable Freeview reception, you should mount the aerial ont he roof.

Your TV licence pays for BBC services only, and you have all of these.

If you could provide a full postcode it may be possible to give you more specific information.

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Briantist's 38,910 posts GB flag
Wednesday, 21 December 2011
A
Allie
3:59 PM
Dover

Help please! I live in CT16 3AY, i lost itv/5 a few weeks ago,i have tried reset procedure. I have since lost all bbc channels as well!Then found bbc channels in 800's, which have since disappeared! (I do however have bbc+itv on my portable tv without freeview box in another room) I have tried the ariel unplugged procedure this pm, without any success!? Has anyone any further ideas on what to try next please? My 7yr old has been in tears and worried no tv for christmas!

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Allie's 2 posts GB flag
Allie's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
Briantist
sentiment_very_satisfiedOwner

4:10 PM

Allie: I would have a look at the suggestions on the Single frequency interference | ukfree.tv - independent free digital TV advice page.

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Briantist's 38,910 posts GB flag
A
Allie
4:36 PM

Hi,thankyou, will try suggestions listed. Fingers crossed!

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Allie's 2 posts GB flag
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