[Elecraft] K2 - 20M dead

[Don Wilhelm]

Mike,

Glad to hear that it is now working - but I don't like things that just 
"go away"

That sounds like something got temporarily "stuck" - which usually turns 
out to be an unsoldered connection.
I might also suspect a relay contact somewhere.
The relays have wiping contacts, so a few operations will typically 
clean off any deposits.
I recommend just remembering this occurrence and maybe jotting down some 
notes about it.  If it reappears, you will have that additional info to 
refresh your memory.

73,
Don W3FPR

On 9/30/2013 2:37 PM, Mike Murray wrote:
> Don,
>
> Thanks for the quick reply and troubleshooting suggestions!  I do have the
> KPA100 and KAT100 installed so here's what I did:
>
> 1.  Rechecked 17, 20 and 30M and only 20 was still dead on transmit.
> 2.  Opened the K2 up, checked VFO freq and it was OK (4915).  Receive also
> OK on 20.
> 3.  Removed KPA100 and KAT100.  Transmit now OK on 20, so the problem must
> be elsewhere.
> 4.  Installed KPA100 and transmit still OK on 20.  Aha! Problem must be in
> the KAT100 somehow.
> 5.  Reattached KAT100 and tested again.  20M now transmitting OK!
>
> At this point I'm starting to question my sanity.  All bands & modes are
> back to normal, although I'm not convinced the problem won't reoccur.  I
> guess I'll just have to wait and see if it happens again and restart the
> troubleshooting.
>
> Thanks again for your help.
>