Re: Urgent Freeview problem

[Jim Noble <yahoo-groups@xxxxxxxxxxxxxxxxxx>]

On 15 Dec 2006, at 20:33, Jonathan Shaw wrote:

>
> I have just erected a new (high gain) TV aerial and using a USB TV
> tuner have managed to get 95% signal strength for BBC channels.  Here
> in Ipswich (looking at the Sudbury / Tacolstone transmitter) the
> weakest signal is ITV 1, 2 and I cannot detect these at all.  However
> connecting the same equipment to my neighbours aerial I can see
the=20=20
> ITV
> channels and a load more  Free to Air channels too.  I have used CT100
> cable from the aerial, my neighbour uses standard brown co-ax.  He
> questions if CT100 is 75ohm impedance and hence a problem with certain
> frequencies=85
> The Urgency comes from the fact that the scaffolding around the house
> is being removed tomorrow morning so I have a small window of
> opportunity to get this sorted before I have to resort to aerial
> installation company :-(

CT100 is 75 ohm, and exactly the right thing to use.

Is your Aerial Wideband? The freeview signals are spread around a=20=20
bit, and a non-wideband aerial might not cover all bands.

The ITV1/2 mux from Sudbury is on Channel 68, quite a bit higher up=20=20
than the other muxes, which are all in the C48-54 range:

http://www.ukfree.tv/txdetail.php?a=3DTL913377

Perhaps you only have a Group B aerial?
http://www.ukfree.tv/styles/images/aerials/aerials4.png

Jim

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