Joe Subich, W4TV-3 wrote: > > The solution is simply not pushing the output gain and keeping > the output under 1V peak and use high impedance devices. With > the speaker amplifier 800 mW into a 16 Ohm speaker shows less > than .01% THD+N - if more audio is necessary 1V peak will easily > drive a good quality 100 watt per channel stereo system. With > Line Out, 1V peak is plenty for good s/n soundcard operation. > > 73, > > ... Joe, W4TV > >
The problem I have with all of this is that my K2 doesn't exhibit this issue at all. On my K3 I can clearly hear distortion/harmonics on SSB at moderate volumes through the cans in my Heil headset. In spec or not in spec, it simply shouldn't happen. Elecraft sell the Heil headset marketed for their radios and if headphone impedance mismatch is an issue then surely they wouldn't sell it? A local fellow K3 owner does not hear the effects I hear with the same set up so it's down to hearing response. The issue is real, not everyone hears it. The debate about THD etc. is all valid but regardless of this I still hear it and it drives me nuts. The only solution I've found is to run with the AF gain down when listening on cans which might be OK unless I'm in a noisy environment which is why I'm wearing cans and need to run more gain. The irony of this is that I can avoid the problem when it isn't a problem. Sorry if this has appeared to be a rant but I feel that this is very much a real issue that does not affect everyone. That doesn't mean it shouldn't be addressed. Also, solving the problem by getting closer to my maker is not amusing :-D I waited long enough for the radio in the first place. Cheers, Paul M1PAF -- View this message in context: http://n2.nabble.com/K3-Harmonic-Distortion-tp797780p837016.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ 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
