[Elecraft] K3 Problem during transmission on SSB

Scott Ellington sdelling at facstaff.wisc.edu
Fri Oct 15 14:06:21 EDT 2010


I agree that, if the same problem exists with the dummy load, it's not RF feedback.  (Especially the audio is OK with an amplifier and antenna.)  A poor connection is the must likely suspect.

73,

Scott  K9MA
On Oct 14, 2010, at 11:28 PM, Luigi Casari wrote:

> Tnx Wes and Scott for your replay,
> 
> I connect a dummy load and I transmit on different bands.
> The problems is on 21,24 and 28 MHz band.
> 
> To times when I push the PTT of the microphone the power is low and then gets up.
> 
> Don't believe is a problem of return RF as Scott suggests me.
> When I have seen the first time the problem were doing DX in 21MHz, I used the PA and I get lots of compliments for the modulation. 
> If they had been a RF problems with 1 KW the modulation has been distorted or with strong noises.
> 
> Seem more a false contact from some part.
> 
> This evening after the work I will try with K3 Utlility and I will check the connectors.
> 
> 73 to all.
> 
> Luigi HB9CXZ

Scott Ellington
Madison, Wisconsin
USA





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