[Elecraft] K3 - AFSK A

[Stewart Baker]

Hi Lyle,
Thanks for your reply. A bit more investigation shows that 
switching between AFSK A, DATA A, USB or LSB makes no difference 
as far as the frequency offset is concerned.

What does make a difference is switching between Digital mode and 
CW/SSB in N1MM...
In non Digital Modes the K3 VFO frequency display corresponds 
exactly with the Bandmap for any K3 mode selected.

However, it appears that in the Digital modes N1MM offsets the K3 
carrier frequency whilst showing the correct Mark frequency on the  
Bandmap and MMVARI cursor.

Or, I think that is what is happening... My brain hurts !

73
Stewart G3RXQ
On Mon, 09 Feb 2009 07:11:25 -0800, Lyle Johnson wrote:
> Hello Stewart!
>
> Be sure you use the PITCH control to select the tone pair you 
desire to
> use. The K3 will then display the RF frequency corresponding to 
the RTTY
> Mark tone.  As you change pitches, the frequency display won't 
alter but
> the offset of the radios suppressed carrier will move in 
accordance with
> the selected PITCH.
>
> If you engage the dual tone RTTY filter, it will be set up for 
the
> selected PITCH.
>
> Be sure the RTTY program is set to the same pitch.  Some 
programmes are
> waterfall-based and change the Tx tones to match the Rx tones. 
 If you
> are using such a program, you may be better off with DATA A, and 
if you
> want LSB then hold ALT to change sidebands for DATA A so that 
you see
> the LSB icon. IN thie case of using DATA A, the radio will 
display the
> suppressed carrier frequency rather than the MARK frequency.
>
> 73,
>
> Lyle KK7P