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Old December 10th 09, 01:15 AM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Jul 2006
Posts: 464
Default installing isolator on a transceiver

Thanks to those who have responded already. I was hoping for some
elegant solution I had not thought of, but so far nothing has come to
light. Also I was hoping there would be some way to implement this
wihthout relays.... but maybe not.

Regarding the comment about breaking out the Rx line to a separate
output... that might be possible but its solid state switching and would
be somewhat tricky to implement right after this solid state PA module
output.

One reason I hate the thought of adding antenna relays to switch the Rx
around the isolator is that this is a busy packet node and I don't like
the reliability issues a couple of added relays might add to a presently
solid state switched radio.. . although I could do this if forced to.


Another option is to buy a second radio, and use it for the receive
channel. Your existing transceiver would be used solely as a
transmitter, and could thus be hard-wired to an isolator.

You'd need to run the receiver on a different antenna, or have some
form of switchable protection circuit to keep it from having its
brains blown out by the transmitter.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!
 
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