[Elecraft] K3/KPA-1500 - Unexpected shift in per-band power

[Pete Smith N4ZR]

Thanks to everyone who responded.  I finally found the PWR SET menu 
option.  I would have thought that the NOR setting would be per band, to 
facilitate quick QSY, but sure enough, mine was set to NOR (or 
presumably "fixed") with PER BAND being the alternative. Everything is 
fine now - after 8-9 years with this radio, still finding things I don't 
understand.

73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite
"retail" DX cluster.

On 3/30/2022 10:25 AM, Victor Rosenthal 4X6GP wrote:
> Pete,
> You have to set PWR SET in the CONFIG menu to PER BAND.
>
> 73,
> Victor, 4X6GP
> Rehovot, Israel
> Formerly K2VCO
> CWops no. 5
> http://www.qsl.net/k2vco/
> On 30-Mar-2022 17:17, Pete Smith N4ZR wrote:
>> For some time now, I've been noticing that after operating on 15M, my 
>> output power on 80  with my K3/KPA-1500 would have to be turned down 
>> substantially to get within legal limits.  Today I decided to test 
>> this, using a dummy load.  I tweaked my input power on 15M to about 
>> 1450 watts, and then went down to 80, where my output power hit over 
>> 1800 watts with the Power control on the K3 unchanged.  I turned down 
>> my K3 to get 1450 watts out on 80, and went back to 15. Output power 
>> showed just over 1000 watts. Tweaked the K3's power setting to 
>> restore 15M output power to 1450 watts and went back to 80.  KPA1500 
>> again showing 1800 watts out.
>>
>> I had thought that K3 power settings on each band were independently 
>> stored and returned to the stored value for a given band when 
>> changing to that band, but this evidence suggests that is not true.  
>> I don't think I'm overlooking something antenna-specific, since I was 
>> using the same dummy load on both bands, and I've noticed this 
>> phenomenon when using real antennas too.
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to pete.n4zr at gmail.com