[Elecraft] K3 / VHF problem

[John Ragle]

Rudi...

     I recently returned my new K144XV (Internal 2 meter transverter) to 
Elecraft with the same problem...the transverter was (diagnosed by 
Elecraft to be) self-oscillating and therefore producing drive to the 
amp even though no audio was going in... It sounds to me that you have 
the same problem.

     My solution was to replace the internal transverter with the 
external (kit) version XV144. This solution is somewhat unsatisfactory, 
in that it adds yet another pendant device to the K3, but the 
transverter works very nicely. The kit required a mod, provided at no 
cost by Elecraft, to draw the LO crystal on frequency. I described this 
in an earlier post.

On 2/18/2011 12:02 PM, Rudi wrote:
> Hello FM,
>
> I have a K3 with internal VHF transverter, assembled by factory.
>
> When I key (PTT) my K3 in USB on VHF with my amplifier my power supply is
> reading 45 amp even when I have no modulation in USB.
>
> When I do the same on HF, no meter reading only when I modulate in my
> microphone.
>
> Whats wrong, all info welcome.
>
> 73 - Rudi - ON7CL
>