[Elecraft] DM780 question

[Adam Koczarski]

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:ve3iay at storm.ca]
> Sent: Thursday, January 08, 2009 11:01 AM
> To: elecraft at mailman.qth.net
> Cc: ka7ark at ka7ark.com
> 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