[Elecraft] K3: Question about data modes...

[Don Wilhelm]

David,

AFSK A is optimized for use with RTTY.  It defaults to LSB and the 
frequency displayed is the frequency of the Mark tone.  The latter 
feature does not make too much sense to me when using a waterfall 
display, but it makes a lot of sense when using narrow filters and 
tuning to a RTTY station with the VFO.  If one arranges  sked with an 
RTTY station, the sked frequency will normally be given as the mark 
frequency.

Data A is the best to use for those soundcard data modes where a 
waterfall display is used.  It defaults to the usual USB used for many 
data modes.  The K3 frequency display is the frequency of the suppressed 
carrier.

73,
Don W3FPR

On 7/16/2014 10:03 AM, David Cole wrote:
> Hi all,
>
> What EXACTLY is the difference between "AFSK A", and "DATA A".
>