This explains all the shifting I saw on the waterfall as I switched modes. I just ended up using DATA A during my first few forays into data modes (PSK, RTTY), and saw the CW just to the right on the waterfall. I was able to rationalize most of what I was seeing, but this looks like it will explain it all.
Great email Rich! I'll print this one out and study it tonight. Adam - ka7ark > -----Original Message----- > From: Richard Ferch [mailto:[email protected]] > Sent: Thursday, January 08, 2009 11:01 AM > To: [email protected] > Cc: [email protected] > Subject: Re: [Elecraft] DM780 question > > In data modes, it's a bit of a mixture. DATA A is just like USB: the > frequency display is the BFO frequency, and everything you hear is at > higher > frequencies (to the right in the waterfall). AFSK A and FSK D are more > like > CW. They are both on the lower sideband, and the frequency in the > display is > the actual transmitted Mark frequency, not the BFO frequency. You can > choose > one of four different values for this using the PITCH control. PSK D is > upper sideband, and the displayed frequency is the actual transmitted > frequency, which is at 1010 Hz audio. > > 73, > Rich VE3KI _______________________________________________ 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
