[Elecraft] K3 s/n 1169 21MHz band distortion

[Jack Colson]

----- Original Message ----- 
From: "Jack Colson" <jcolson7 at tampabay.rr.com>
To: <elecraft at mailman.qth.net>
Sent: Wednesday, July 22, 2009 4:20 PM
Subject: [Elecraft] K3 s/n 1169 21MHz band distortion


>I have noticed whenever I used the transciever on 21MHz (rare since 
>band
> conditons are so poor) a distortion of received signals.  I listened 
> to
> the transmitted signal using on other receiver(s) and it is quite
> noticeable.  Especially when comparing the purity of the CW note on 14
> and 28 MHz.
>
> The recieved signal distortion is difficult to describe.  The amount 
> of
> distortion varies from signal to signal.  And it does not seem to be a
> function of received signal strength.
>
> I switched power supplies, no change.  Switched from using an external
> antenna to a dummy load and no change in the sound of the transmitted
> signal purity.
>
> I think the best illustration of this would be for me to call a 
> service
> technician and let them listen to it.  That would at least let them 
> hear
> what I am experiencing.
>
> Thank you for your assistance.
>
> Jack Colson, W3TMZ
>
>
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