RE: RF modulators

["Richard" <rich_lists@xxxxxxxxxx>]

Don't loop thru all of them, instead put a terminator on the input of
them,
and then take the outputs and feed it into a backwards splitter along with
your antenna signal. The loopthru on these things is what makes most of the
cross channel interference.



You may need to attenuate your antenna to the level of these, and then pass
the combined signal into your amplifier. If the signal into the amp is too
high, it will also cause crossmodulation.



I have had to use external modulators on VHS and dvd-r decks because they
have a passthru in them, and without an input the tuner is useless and you
cant go looping the output back to the input of it.  You may have to do the
same with the freeview box, unless it has a separate tuner to the
modulator.
We still don't have dvb-t over here in NZ so its not being a problem yet





From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
domdevitto
Sent: Thursday, November 15, 2007 2:20 AM
To: ukha_d@xxxxxxx
Subject: [ukha_d] RF modulators



Hi,

I want to pipe my DVD, FreeView and VHS around my house (which already
has UHF/coax cabling in the right places.

I was thinking of getting a couple of these:
http://www.satcure.co.uk/accs/page4.htm#lowcost

and stacking them before (or after) the VHS and then feeding the TVs.

I'm sure quality isn't going to be great, but any ideas if it would
work acceptably ? (we've a single large TV near the proposed 'stack',
and the rest are 15in TVs much further from the 'stack')

So it would be:

- Attic --------------- Lounge ----------------------
Aerial -> VHS -> RFM1 (DVD) -> RFM2 (FreeView) -> TVs

Does anyone know-of, or recommend, a multi-input RF Modulator ?

Anyone with some spare thoughts?

Dom





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