Topband: FRONT END PROTECTOR

Petr Ourednik indians at xsmail.com
Tue Oct 18 01:08:32 PDT 2011


All,

I agree with Bill and KD9SV is nothing more that what BIll is talking
about. 
Just put the relays into the box and connect between radio and
preamp/ant > done.

73 - Petr, OK1RP


On Mon, 17 Oct 2011 19:49:29 -0400, "Bill and Liz McHugh" <magoo at isp.ca>
said:
> I suppose some people who use full break-in want a complicated
> solid-state front-end protector.  I don't use break-in and so a simple
> DPDT relay powered from your transceiver will do the job at almost $0. 
> One side grounds the auxilliary RX antenna port on the transceiver while
> the other grounds the RX antenna feedline.  Foolproof, and you always
> know if it is working since you can hear the relay kick in every time you
> transmit.
> 
> I have been using one of these for many years....ever since my linear
> developed a mind of its own when RF started feeding back into the
> transceiver's auxilliary RX port.  I've never had a problem and it
> protects the front end 100%.  'Course I'm a dinosaur 'cuz I don't use
> full break-in.....but I suspect there are many like me!!
> 
> Bill VE3NH/VE3CSK
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK


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