I think that this is band dependant. If you're operating 20m during a
contest, QRM is much more of a factor in hearing a station than the received
signal strength. Your antenna will still have the same pattern, and it's
just like hitting the 3db attenuator button on your radio. I think that you
will still hear what you did before, but just slightly weaker on your S
meter. Perhaps on 10m or higher the coax loss may make some RX difference.
The other thing to consider with long runs is that you need large wires for
the rotator motors and you may have problems with some pulse sensor
To: email@example.com, firstname.lastname@example.org
Subject: Re: [TowerTalk] Coax Question
Reply-to: "Tower and HF antenna construction topics."
Date: Tue, 13 Apr 2010 08:25:41 EDT
In a message dated 4/13/2010 3:48:52 A.M. Pacific Daylight Time,
> In regards to long runs of coax, has any thought EVER been
given to RG213 to a remote tuned high power amplifier
at the base of the tower. I've thought about it, and for
costs, it might be cost effective. I'm sure someone has this
working for them somewhere. What do you guru's say to this?
Some potential problems with the amp as already mentioned but you don't
get the real advantage for long coax runs with low loss coax which is less
loss on the received signals. If you can't hear them - you can't work them,
no matter how much power you're running.
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