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NNTP-Posting-Date: Mon, 13 Jan 2003 14:01:57 -0600
From: "Arthur Jernberg"
Subject: Re: RF feedback, anyone?
Date: Mon, 13 Jan 2003 15:01:58 -0500
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What are the design parametes of the transmitter's output stage?? If it is
designed to function at 2 watt max and you apply 10 times that amount of
signal to what may happen?/ The linear amp is designed be connected to the
antenae with the input from the transmitter as it exciter signal generator.
"Paul Burridge" wrote in message
> Let's say I have a hand-held transmitter operating on 40Mhz. I take a
> 'sample' signal from it and feed it via a 6 foot cable to a separate
> low power linear amplifier. It's then fed back via a different wire in
> the same cable to the tx for transmission from the tx's antenna. Let's
> say the 'sample' RF is 2v peak-peak and the return, amplified signal
> is 20v p-p. Can I get away with this or am I likely to have problems
> with feedback owing to the wires being in such close proximity? Would
> using shielding on one or both of the wires help if this set-up is
> likely to cause problems?
> "What is now proved was once only imagin'd"
> - William Blake, 1793
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