> None of those things helps. I can reduce my LINE OUT gain to > 1 and still see the 3rd harmonic easily on the waterfall. I've > had many rigs and this is the first to do this.
Turn on the ACG and make sure the audio level from your Line Out does not exceed .7V RMS. As long as the AGC is on, I can turn my Line Out to 100 and not see any "ghost" except the 3rd harmonic on the waterfall in Digipan. An AF spectrum analyzer shows the 3rd Harmonic about -50 dB and others below that. If you insist on running with AGC off or low values of SGC SLP, TURN DOWN the RF gain to keep from overdriving the Line Out amp and transformers. Any reasonable soundcard should operate very happily with 200 to 500 mV RMS - well within the linear capability of the Line Out amp and transformers. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of n4lq > Sent: Monday, September 01, 2008 12:14 PM > To: Jim Brown; elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3 Harmonic Distortion > > > Jim > None of those things helps. I can reduce my LINE OUT gain to > 1 and still see > the 3rd harmonic easily on the waterfall. I've had many rigs > and this is the > first to do this. > There was a thread about this not long ago. Do a nabble > search on "ghost". > There is also some distortion in the speaker output but I'm > told that this > is a separate amplifier. > Steve Ellington > [EMAIL PROTECTED] > ----- Original Message ----- > From: "Jim Brown" <[EMAIL PROTECTED]> > To: <elecraft@mailman.qth.net> > Sent: Monday, September 01, 2008 12:05 PM > Subject: Re: [Elecraft] K3 Harmonic Distortion > > > > On Mon, 01 Sep 2008 14:30:45 +0100, Berni G0IDA wrote: > > > >>I hope there is a cure for this as it's frustrating listening to CW > >>with this sort of distortion. > > > > There are three things you should do. > > > > 1) Make sure that the AGC is on, and that the CONFIG AGC > settings are > > at > > the > > defaults. > > > > 2) Reduce the LINEOUT GAIN (on the CONFIG menu) to a value > less than > > about > > 4. > > This prevents distortion that could occur in the output transformer. > > > > 3) Adjust the input gain of your computer so that you have enough > > signal > > for > > the decoder to function, but not enough to cause distortion. > > > > This should correct any problems. > > > > 73, > > > > Jim K9YC > > > > > > _______________________________________________ > > 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 > > > -------------------------------------------------------------- > ------------------ > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.169 / Virus Database: 270.6.14/1645 - Release > Date: 9/1/2008 > 7:19 AM > > _______________________________________________ > 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 _______________________________________________ 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
