"Woody" wrote in message
...

[snip]

30dB would probably be a bit excessive and overdrive the input of the TV
on
the shorter cable - unless an attenuator was in circuit. 10dB per port
would
be better to overcome the splitting and cable losses.

Not necessarily so over a long run. I tried a lower gain amp and didn't
get a very good picture over a run of approx. 15m or so, 30dB works fine.
I get no problems with a TV on a 1m cable from the same amp either.

Ivor