[Elecraft] K3 TUNE function

[iain macdonnell - N6ML]

On Mon, Nov 12, 2012 at 1:37 PM, Geoffrey Downs
<geoffreywd at madasafish.com> wrote:
> Given that the transmitter gain calibration involves holding TUNE at 5w and 50w on each band (either manually or via the utility), why does holding TUNE at any other power level on any band not upset the tx gain calibration for that band? Or does it?

Good question... Since the procedure requires power to be set to
exactly 5.0W, it suggests that there's some special logic in the
firmware that cause the calibration routine to kick in when TUNE is
invoked with that setting. That seems to imply that one should not
invoke the TUNE function at that power level under other
circumstances, as an imperfect load could result in
"decalibration"....

73,

    ~iain / N6ML