[Elecraft] Per-Band Power Setting Issue

[David Box]

The statement "I thought the per-band settings might go back to their 
presets ..."

The misconception is that there are presets and there are NOT, the K3s 
stores the last set power for that band/Amp Mode.  The "presets" are the 
last power setting the operator made either manually or via 
software/macro based on the amplifier mode (OPER/STBY).  IF you adjust 
the K3s power then you changed the "preset" for the amplifier mode/Band .

Below is the response I got from Elecraft support on this issue, just 
substitute operator for macro, I have edited to make the point.

de Dave K5MWR

Power Set/Per Band is activated at the time of a band change. If your 
macro/*OPERATOR PWR ADJUST* runs after the band change, the 
macro*/OPERATOR* dominates--and vice versa. (The last one rules, in 
other words). Similarly, if the amplifier changes from STBY to OPER 
after the macro*/OPERATOR* runs, the power will change to the stored 
OPER power level.

Note that it is likely that if your macro*/OPERATOR* sets a power level, 
that level will become the new default power for either the K3's STBY or 
OPER transmit level, depending upon which mode the K3/amplifier is at 
the time the macro*/OPERATOR* runs. To use even more words (hi), if the 
amp is in OPER on 20m and you run a macro*/OPERATOR* setting TX power to 
75W, that will be the stored power level--whether you transmit or not. 
The next time the K3 is on 20m and the amplifier is switched to OPER 
mode, the K3 will return to that last-used AMP = OPER mode power level 
of 75 W. (And the amp will throw an overdrive fault when you transmit).

On 3/12/2020 02:36, Tony wrote:
> All:
>
> I purchased the AUX cable for the K3S / KPA500 to use the per-band 
> power option so the drive levels would stay put when the amp was in 
> operation.
>
> After setting the proper drive level for each band, I noticed that the 
> settings I chose were lost if I turned the power up on the K3S.
>
> I thought the per-band settings might go back to their presets if I 
> cycled the KPA500 from operate to standby and back, but that didn't work.
>
> If the per-band drive levels are easily bypassed, it defeats the whole 
> purpose of having this option.
>
> Am I missing something?
>
> Tony
>
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