Lyle, Well I took a few minutes of data, as you suggested, using an XG-1 CW generator, and found the level the same on both sides, whether the AFX was on or off. I put it back on the antenna -- the speakers are now mounted on the wall, a short distance away and didn't notice a problem either.
So for now, I'll chalk it up to some kind of "perceptual dysfunction." Regards, Joel Joel R. Hallas, W1ZR -----Original Message----- From: Lyle Johnson [mailto:[EMAIL PROTECTED] Sent: Friday, August 15, 2008 4:10 PM To: Joel R. Hallas Cc: wayne burdick; Lyle Johnson Subject: Re: [Elecraft] K3: Audio Balance in AFX Modes Hello Joel! > This is the case with either mode, and stays the same over time, so I > suspect not a phase shift issue. It also doesn't switch back and forth as it > would if it were based on phase. I looked over the DSP code and saw nothing that might result in this symptom. I then connected my K3 to my dual channel 'scope and checked DELAY1, 2..5, as well as BIN on LINE OUT, then PHONES (rear jack) then EXT SPKR. I tried AFX ON and OFF. I tried USB as well as CW modes. In all cases, the signal level is consistent between the two channels and essentially the same levels. I assume you have SPKR 2 selected in the CONFIG:SPKR menu. How much amplitude difference are you seeing betwewn the two channels? Which channel is weaker? WHat is the nominal impedance of the speakers you are connecting? 73, Lyle KK7P > Regards, Joel > Joel R. Hallas, W1ZR > -----Original Message----- > From: Lyle Johnson [mailto:[EMAIL PROTECTED] > Sent: Friday, August 15, 2008 2:55 PM > To: Joel R. Hallas > Cc: [email protected] > Subject: Re: [Elecraft] K3: Audio Balance in AFX Modes > > Hello Joel! > >> I noticed a lack of balance between the two channels while using AFX. At >> first I thought it was a speaker problem, but after swapping everything >> from side to side without change, I noticed that it was nicely balanced if > I >> turned AFX off. > > Is this with voice or CW? > > Since AFX introduces delay, there will be nulls and peaks in audio > response as the audio signals add or subtract from each other based on > the pitch - hence relative phase - of the signal(s). > > 73, > > Lyle KK7P > > > _______________________________________________ Elecraft mailing list Post to: [email protected] 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
