[Elecraft] KPA1500 power per frequency bin

[Andy Durbin]

"The K3 has only one way to communicate with the KPA500 and KPA1500, that being Auxbus. There is no communications on this path that allows setting of specific power levels in the K3 - there is only the OP/STBY that simply selects either the K3 high power (STBY) or low power (OPER) modes. You have to set those levels in the K3. Simply put, the communication paths and protocols do not exist for the KPA1500 to set specific power levels in the K3."

I can understand that there is no way for the KPA1500 to command the K3 to a specific power setting based on frequency.  However, that is not required for the K3 to set drive power based on current frequency.  The K3 knows the current TX frequency.  The K3 would have to host an array of bin frequency definitions each with an associated power level (or each with multiple power levels).  That's a LOT more data sets than the current "by band" power mapping.   It's quite possible the K3 does not have the required spare memory but I don't see that the current interface prevents this being implemented.  What am I missing?

As has been mentioned - shouldn't be too difficult to do this with an external Arduino based controller.

73,
Andy, k3wyc