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[TowerTalk] Antenna proximity--problems with rx overload

To: <towertalk@contesting.com>
Subject: [TowerTalk] Antenna proximity--problems with rx overload
From: n4kg@juno.com (n4kg@juno.com)
Date: Sun, 7 Jan 2001 21:47:06 -0600
OOPS !

Pardon me while I wipe the egg from my face.

I confess I used PIN diodes in my protection
circuit (a) because they have LOW capacitance,
and (b) because I had them.

Low-capacitance  fast-switching diodes are readily
available, low cost, and actually better for use in
receiver protection circuits.  Use two parallel strings
of opposite polarization with each string composed 
of 3 or 4 diodes in series on the receiver side of the
series resistor. ( I hope that is clear :-)

Thanks to W8JI and I4JMY for their knowledgable
inputs (and setting me straight).

de  Tom  N4KG


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