I also notice that the tracking will lock up anywhere +/- 25 cycles of nominal. I've heard one case where AM sync did not sound particularly good ... that's with some of the metrological voice broadcasts on WWV/WWVH. Still that appears to be a case where the sync AM is amplifying an issue at the source because the normal envelope detector does not sound very good either.
73, ... Joe, W4TV > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of drewko > Sent: Thursday, November 12, 2009 8:37 AM > To: Elecraft@mailman.qth.net > Subject: Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. > 3.57: Synchronous AM Detection (AM-S); misc. improvements > > > I also think the sync det works great. My VFO locks 4 or 5 Hz > high using the 13 KHz filter. The 2.7 KHz filter locks right > on the money. Switching to the narrower filter will also lock > signals that are too weak to lock on the wide filter. Not > that you'd want to use the 2.7 filter for listening to AM broadcasts. > > 73, > Drew > AF2Z > > > On Thu, 12 Nov 2009 03:59:38 -0600, Dale, K9VUJ wrote: > > >Installed 3.57 this morning. I am listening to Radio Zealand now, at > >0945 Z on 9765 Khz. Sync det seems to work very well. I'm > trying it > >back and forth between AM and AM-S. I am using the VFO > tracking and > >it locked right on, but my VFO display reads 9.764.991. > Perhaps I'll > >have to re-check calibration sometime, no biggie here. I like this > >sync det. It now makes me wish I had the 15 Khz filter in > addition to > >my 6 Khz. filter. > > > >Thankyou Elecraft for another flawless upload. Am using the Mac and > >that utility which also has been flawless here. > > > >73 > >Dale, K9VUJ > > > > > > ______________________________________________________________ > 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
