Re: [Elecraft] KPA500 gain variation with serial number

Thanks to all those who have submitted test data. I shall need more to have any hope of seeing a correlation so please keep it coming. Requested data: Serial number; frequency; drive power; output power (target 500 W); PA voltage (front panel HV); PA current (front panel CUR); power

[Elecraft] K3 Power-hunting on FT8

"It will remain as clean as the audio, up to the point the ALC begins to kick in; then it goes bad like any other radio. That’s the fault of ALC, not the radio." What goes bad? Nothing goes bad for a Kenwood TS-590S when drive level moves into the ALC closed loop control range. Remember

Re: [Elecraft] K3 Power-hunting on FT8

Are you sure the "technically-qualified local ham" was not running his tests in SSB instead of DATA A? There are more than a few "technically- qualified" individuals who insist on using SSB instead of DATA_A with WSJTX and that makes all the difference in the ALC display. Again, READ THE K3