[Elecraft] K2/100 Distortion on 80M

[Don Wilhelm]

Barry,

There is nothing unique to 80 meters in the K2 that should create 
distortion on only that band, so I would not suspect the bandpass filter.
One thing you might try first is to tuck the KPA100 ribbon cable and 
speaker wire up into the upper corner of the control board, and as far 
away from the KSB2 as possible.  Remove the right side panel and you can 
easily position the excess cable.

When using a separate receiver for monitoring, shorten the receiver's 
antenna (use a short piece of wire) to limit the strength of the signal 
to an S-9 level - it is easy to get too much signal into the receiver 
and overload it, and that condition could occur more readily on a 
specific band.

73,
Don W3FPR

Barry Middleton wrote:
> I would like some help please, I have a K2/100 Ser# 6459 which is 
> transmitting distorted audio on 80 metres only at all power levels, also 
> the volume level of the transmitted audio as monitored on another 
> receiver varies in a random manner. These tests were carried out using a 
> dummy load with only the PSU and dummy load connected. Would I be right 
> in thinking I may have a bad soldered lead on the 80m band pass filters 
> that could cause this problem or should I look somewhere else. I build 
> this K2/100 myself.
>
> Thank you for any help you can give me,
>
>                   73 de Barry G4DBS
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