Re: cable box distribution - amplifier needed?

[Robert L Bass <sales@xxxxxxxxxxxxxxxxxxxxx>]

> Currently when I split the output from the cable box,
> and feed it back into my distribution block, I get no
> signal out to the other TVs.  Do I need an amplifier
> (installed at the cable source for the house)?

It could be that you're simply connecting it wrong.  Cable boxes
typically have two (sometimes more) types of outputs.  The most
common is the F connector which carries an RF signal (channel 3
or 4). The other is group of three RCA connectors which carry
left audio (black or white), right audio (red) and line level
video (yellow).

The RF signal can feed a splitter or (better) an amplified
splitter which in turn feeds multiple TV sets, all of which must
be tuned to channel 3 or 4, depending on what the cable box is
sending.

To use the line level signal from the RCA connectors you'll need
a modulator which converts the signal back to RF, then splits it
out to the TVs.  Since the cable box already provides a modulated
signal, the modulator route would be a waste of money in your
situation.

Some new cable boxes have other outputs, such as component video
but these invariably also have basic ones described above.  Check
how you're connecting things and the TV settings to make sure
these are OK before you buy anything.

--

Regards,
Robert L Bass

Bass Burglar Alarms
The Online DIY Store
http://www.BassBurglarAlarms.com

--

Never underestimate the power of very stupid people in large
groups.