[Elecraft] K3/KPA500 question

[Jack Brindle]

Check the AuxIO cables. They carry the band data from the K3 to the KPA500 (BAND0-3 signals). If they are not connected correctly or either cable is damaged, I would expect the behavior you describe.
The AuxIO cable goes from the K3 to the KAT500, then another from the KAT500 to the KPA500. Be sure to check both.

73!
Jack, W6FB


> On Apr 23, 2021, at 8:17 PM, Joe K2UF <joe at k2uf.com> wrote:
> 
> I have my K3-KAT500-KPA500 working great.  The amp is off to the left side
> and I can't see the display easily.  while working on building an auto
> antenna switch  I noticed  that the band display on the amp does not synch
> with the K3.  It seems to be random.  If I hit  one dit on the key  the amp
> will synch the band with the K3.  I am not sure if this has been working
> like this right along and just did not  notice.
> 
> Any ideas guys.
> 
> 73 Joe K2UF
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