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From: firstname.lastname@example.org (James Osborne)
Subject: Re: RF feedback, anyone?
Date: 16 Jan 2003 16:54:26 -0800
NNTP-Posting-Date: 17 Jan 2003 00:54:26 GMT
I'd say place the wires apart using aluminum foil if possible. Using
RF anything is likely. 40MHz is not really that high.
"Arthur Jernberg" wrote in message news:...
> 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
> > Hi,
> > 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?
> > p.
> > --
> > "What is now proved was once only imagin'd"
> > - William Blake, 1793
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