[UK-CONTEST] K3 users - advice please

[Dave G3RXP]

Hi Don,

Seasons Greetings,

I had the same problem , and I now use a circuit which Dave G4BUO uses.  It 
is simple and negates the use of a relay although the latter is the final 
method.

>From the Ant- through a P bulb to a .1 MicroF and a 33 ohm resistor (All in 
series) to the RX ant input, and at the RX input there are two banks of four 
IN914 diodes (One bank -cathodes to the RX input and the other bank -anodes 
to the RX ant.   You can see the RF with the bulb -maybe light up the shack 
Hi.

73 Dave G3RXP




----- Original Message ----- 
From: "Don Beattie" <g3ozf at btinternet.com>
To: "CDXC Reflector" <CDXC at yahoogroups.com>; "Uk-Contest at Contesting.Com" 
<uk-contest at contesting.com>
Sent: Thursday, December 31, 2009 9:41 AM
Subject: [UK-CONTEST] K3 users - advice please


>I came across a problem on 80m this morning with my K3. When I switch to a 
>beverage as receiving antenna, there is a relay that chatters inside the 
>K3. If I go back to the K9AY (or the main transmitting antenna for receive) 
>the problem goes away. The problem appears to be the effect RF coming down 
>the RX antenna line (I assume there is more from the beverage than the 
>K9AY.
>
> Other than putting an isolation relay in the rx antenna feed, does anyone 
> know of another fix ?
>
> 73 and HNY
>
> Don, G3BJ
>
>
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