Same thing to me, I was noticed it when put my Amp w/GU84B on, need 20w+ to obtain 500w in ssb instead of my normal 16w. MH2 Mic dynamics was also affected and obliged to increase the Mic gain consequently. When back to NOR Dual PB features it comes back almost to normal power but seems a bit lack of dynamic. When download back the 4.14, everything returns to "normal". I have download again the 4.17 and same "problem" occurs but let it like this the time a solution will be available on line. Anyway the APF is really impressive to extract the weak signal and really enjoyed it. It is also a must to catch the beacons qrg's. Bst 73s Philippe A65BI
>>> "Dave Perry N4QS" <n...@comcast.net> 05-11-2010 4:34 >>> I am seeing the same reduction in SSB output power. I installed 4.17 Beta last night. It appears that the reduced power only occurs when I have APF activated. I have twice restored SSB power by doing the following: 1). Changing mode back to CW, 2). Going to Dual PB in Config menu and turning APF off, 3). exiting Config menu, 4). changing mode back to SSB. Power is restored back to a full 100 watts. With APF set to on, SSB power is reduced to about 70 watts. I confirmed this on 17M by repeating the process twice, and I then tried 20 M SSB and the power was back to 70 watts (after I had turned APF back on.) Is this a problem with the beta release? I saw Wayne's suggestion to do a TX gain calibration, but it seems strange that I would only need to do this after installing Beta 4.17. APF works great, but I need to resolve this SSB power issue. I may try RTTY next to see what happens in that mode. Dave, N4QS ----- Original Message ----- From: "Nate Bargmann" <n...@n0nb.us> To: <elecraft@mailman.qth.net> Sent: Thursday, November 04, 2010 6:30 PM Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output? >* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote: >> I had no loss of SSB power output after the 4.17 Beta install. The APF >> works wonderfully, with only a hint of ringing to my ears. Really nice >> addition to the K3. > > At least some of you aren't seeing this. :-) > > James Rogers suggested turning the Mic gain to 0 and then back up and he > was getting good output. After I did that, I could only get about 25 > Watts peak on both meters. I switched to CW mode, transmitted a short > carrier which showed 100 Watts on both meters (power control set to > 100). Switching back to SSB both meters showed about 70 Watts. I have > since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts > peak on each meter (I say fourrrrr in a normal voice to get the K3's > meter to stabilize for a bit). I had previously had TXG VCE set to 1.0 > dB. > > I'm not sure that rolling back to the last stable firmware would solve > this or be fraught with other issues. Generally, roll-backs don't work > all that well in other devices. > > 73, de Nate >> > > -- > > "The optimist proclaims that we live in the best of all > possible worlds. The pessimist fears this is true." > > Ham radio, Linux, bikes, and more: http://n0nb.us/index.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
