[Elecraft] K3 filter centering different behaviour from band toband

[Don Wilhelm]

  Giorgio,

Check your data mode for those bands, and if AFSK A, check the mark 
frequency.
What you describe is normal when set to AFSK A with the mark frequency 
set to 2125 Hz.
This is a per band setting, so yes you could have 20 meters set one way 
and another way for 15m and 10m.

73,
Don W3FPR

On 10/3/2010 3:26 PM, ik1bxn wrote:
> Hi Dave, thanks for quick response. No, I change band via Cat command by
> using Ham Radio Deluxe, the suite I use for digi modes. Now tried to change
> band by using the k3 front button but it's the same:moving Shift knob I
> can't choose less than 1100 Hz in 15m and 10m. It's just from the HRD
> waterfall that I noticed the difference, in 20m I have a larger region to
> transmit (from 400 Hz to 2700 Hz or wider), in 15m and 10m I have power out
> only in the right half of the waterfall screen (from 1100 Hz to 2800 Hz).For
> that I tought I touched some Dsl setting in wrong way. It happend to me in
> the past something similar with a TS-480 but then I found out the correct
> setting to have quite all waterfall available for transmission (as it is on
> 20m with my k3).Tnx and 73 Giorgio