Joel,
Any RF signal you put onto the coax could be severely attenuated by any
splitters that are in your distrubution network. Attenuation will range from
a paltry 3.5 dB from splitter output-to-input, but could be as much as 40dB
from output-to-output If you start out with a relatively strong transmitted
signal and have a relatively sensitive receiver, I suppose it would work,
but beware of higher than expected path losses. DC is probably out of the
question because many splitters and other equipment present a DC
short-circuit. You should consider a frequency of at least a few Mhz.

Joe
W3JDR



"Joel" wrote in message
t...
Thanks for the suggestion, but I already have a modulator that sends the
locals and the Satellite to all the TV's in the house. I just need to
somehow get the inferred remote control signal back to the receiver.
Considering I already have coax run to each TV, it would make sense to us
that, piggy backed on the cable. I did a google search and found about
what
I need if I wanted to buy all the equipment.. Except I would rather build
my
own. Seems to me I could modulate a low frequency carrier or DC signal
and
send it back over the coax.


"W3JDR" wrote in message
...
Joel,
There are a number of products on the market that do everything you
want.
They wirelessly rebroadcast the output of your set top box to other
TV's,
and also wirelessly send back the signals from the remote. I can't
remember
brand names off-hand, but do a search on "video sender" and you should
get
some good hits.

Joe
W3JDR


"Joel" wrote in message
t...
I have a DSS receiver that I run into a modulator and then can use the
Satellite all over the house as if it was cable. The problem is we
need
to
extend the IR from the remote control. We are now using some RF units
from
RCA and while they worked well for a few years, over time they are
drifting
off frequency. It seems to me it would make more sense to build some
sort
of 'device' to send the IR signals over the coax and then pull it out
at
the
receiver end. Anyone have any suggestion or experience with building
such
an
animal?

Joel AG4QC