Hi Toby I've just tried it at 30w and it behaves sensibly whether I adjust o/p in rx or tx. There's a slight "wobble" in output power as I adjust it (visible when running carrier) but only a few percent. I tried all powers from 3w to 100w on 80m and 15m. And it also produces the same peak power on ssb as near as I can tell.
I haven't noticed any change in this area from firmware changes. Hope this helps. Graham ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "Graham Kimbell (G3TCT)" <[EMAIL PROTECTED]> Cc: <elecraft@mailman.qth.net> Sent: Friday, September 26, 2008 10:53 AM Subject: Re: [Elecraft] K3 RF-out spikes, was: K3 SSB Power Control and ALCMetering > Hallo Graham, > > thank you for looking at this with a scope. > > Did you try changing the power level while you were in SSB at lowish > power, e.g. from 30W to 35W? This (at least it used to) usually caused > my K3 to settle in on a power level which tended to be between 3db and > 10dB lower than requested. The effect was stronger at lowish power > levels, e.g. 30W, than at higher levels, e.g. 90W. > > Did you change the power level request while in the RX and/or TX states? > > My work around, was to set up the power level in CW (or TUNE) and then > not touch the PWR knob while in SSB. > > The more recent firmware versions have improved quite a bit, but the > effect never really disappeared totally. This being said, I haven't > had a chance to test the very newest firmware yet. > > vy 73 de toby > -- > DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz) > K2 #885, K2/100 #3248, K3/100 #67 > > > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
