Re: Yawn - more on Freeview reception



you clever bugger ;)

£120 high gain (looks over 6ft long etc etc) aerial and a proper
aerial rigger to install and align it - who I bought it from .

stop making assumptions yourself.

cheers anyway. its all in good spirit isnt it!

Steve Roberts wrote:
On 2 Sep 2006 09:48:48 -0700, "Badbetty" <bch@xxxxxxxxxxx> wrote:

So, if they are all coming from the same transmitter, why is there such
a varied strength between channels e.g. ITV, C4 show more or less
always fine but, BBC (any of them) on the other hand is rubbish -
particularly when the trees are in leaf or bad weather :)

So does anyone truly know why this problem cannot be sorted for us folk
with Freeview.
Is it too much to ask.

You seem to be starting with the assumption that the problem is with
Freeview generally or the transmitter, when it's massively more likely
that it's actually a problem at your end - probably a bad aerial
installation. The people responsible for designing and transmitting
the signal have lots of very high tech kit and large foreheads and
constantly monitor their power outputs, whereas you undoubtedly have a
few tens of quids worth of Curry's special and a bit of pointy
aluminium stuck on your roof.

It's very easy to get into a situation where you get high strength
signals on some channels and low on others. Reflections from objects,
badly installed aerial or downlead can all cause this sort of problem.

I once heard of a guy who could receive all TV signals very well,
except for one particular channel which wasn't there at all. The fault
was eventually traced to the cable clips which he had used to secure
his coax to the wall. They were a little too small for the cable,
causing them to deform the coax and change the electrical
characteristics. He had accidentally created a notch filter in his
coax, which was centered on the frequency of the missing TV channel.

Your first step should really be to call in a reputable aerial
engineer... Is it too much to ask?

Steve

The Doctor Who Restoration Team Website
http://www.restoration-team.co.uk

.



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