[Elecraft] Flex 3000 or KX3...

[Don Wilhelm]

I really should add to my webpage K2 filter settings page (part of the 
K2 Dial Calibration article) information about setting the K2 RTTY 
filter set.  My settings work well with PSK31 or RTTY and many other 
digital modes.

I normally set the K2 RTTY filter FL1 settings the same as the setting 
for SSB - the "width" is FL1, and the BFO settings are the same as for 
SSB FL1 - those settings allow "full waterfall display" operation from 
the low 100 kHz range to the upper limits of the SSB filter (2.3 kHz to 
2.8 kHz).  So the RTTY filter set for the FL1 position is exactly the 
same as the SSB FL1 position.

For the more narrow rtty filter settings, I prefer to set the widths at 
1.00, 0.70, and 0.40 kHz - then set the BFOs so those filters are 
centered at 1000 Hz.  It would be nice to use a higher frequency, but 
the BFO may run out of range if you try to push the limits.

If you have the KDSP2 installed, edit the KDSP2 center frequencies for 
the RTTY filter set and adjust them to the 1,00 frequency to agree with 
your new IF filter settings.

73,
Don W3FPR

On 4/2/2012 10:45 PM, John Ragle wrote:
> If you intend to  operate digital with a K2, you will need the SSB unit.