Re: Combining Two RF signals

[Mal Lansell <mal@xxxxxxxxxxx>]

It's definitely looking like the modulator is the way to go, but I've
never had much luck in the past finding one of decent enough quality.
Do you have any recomendations for a brand to look out for?

Thanks

Mal


Keith Doxey wrote:

> Hi Mal,
>
> > Unfortunately that doesn't work - the cable carries a weak
version of
> > the terrestrial channels (albeit not quite strong enough to avoid
> > grain-o-vision), and this seems to interfere with the signal from
the
> > antenna.
> >
>
> In that case the only real option you have is to use an external
modulator
> fed from the AV output of the cable box. Filtering with simple passive
> filters will not attenuate the signals enough to prevent interference
and
> active filters will get very expensive very quickly.
>
> Using an external modulator you have two options for connecting it
up....
>
> 1. feed your TV aerial into the modulator and then distribute the
output
>
> 2. if it is more convienient, use a passive splitter as a combiner for
> terrestrial and modulator and then distribute that.
>
> HTH
>
> Keith
>
>