[Elecraft] K3/KPA500 question

[Jack Brindle]

Actually, no. The KAT500 does not communicate with the KPA500, only the K3. In RADIO=K3 (on the KPA) changing bands on the KPA500 causes the KPA to send a special Auxbus message to the K3. The KAT500 cannot receive this message. The K3 does a band change, then sends data using normal Auxbus communications to the KAT500. Note that the KPA500 only sends data on the Auxbus (only the K3 can decode this), while the KAT500 only receives data, and only from the K3.

I _really_ wish the KAT500 and KPA500 could communicate, but unfortunately they cannot.

73!
Jack, W6FB


> On Apr 25, 2021, at 1:51 PM, Lou <lmecseri at cfl.rr.com> wrote:
> 
> That also controls the KAT500 when connected.
> 
> 73, Lou KE1F
> 
> On 4/25/2021 4:08 PM, Andy Durbin wrote:
>> "FYI, you can still tap the BAND buttons on the KPA500 to change bands on the K3, because that uses the AUXBUS line (ACC Pin 2), not the BAND DATA lines.  Many folks may have never discovered this cool feature of the KPA500 and KPA1500."
>> 
>> I had to write code to put the KPA500 back on the correct band if one of these band buttons was accidentally pressed.  I wish there was a way to disable them completely.  One person's cool feature is another's PITA.
>> 
>> Andy, k3wyc
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