[Elecraft] K3: Filter settings when changing bands

[Björn Mohr]

On 080323 15:32 , "Ed K1EP" <k1ep.list at gmail.com> wrote:

> Has anyone seen this?
> 
> Say I am on 12M USB.  Filter width is set to 2.7.  I switch to CW,
> set filter to 400.  Everything is fine.  I switch bands to 17M CW by
> tapping the band down twice fast.  Filter is set to 2.7, so I change
> it to 400.  I switch back to 12M, both USB and CW filter settings are
> correct, I can toggle between the two modes.  I then go from 12M USB
> back to 17M CW by tapping band down twice.  The filter on CW is back
> again to 2.7.  Why wouldn't it remember the last setting I had for
> CW? Try this;

Go 17 CW, adjust filter for narrow setting.

Go 15 CW, adjust filter for narrow setting.

Go 12 SSB, adjust filter for wide 2.7.

SLOWLY step down one band at a time to 17. The K3 retains all settings. Then
try the same step down to 17 by double clicking band down fast and observe
the results... Both 17 and 15 meters will still be CW, but the width has
changes to whatever wide setting you had at 12.

Now, with the filter untouched step one band up from 17 to 15, then narrow
the filter and step down again. Voila! 17 follows whatever setting you made
on 15!

Not a big problem, but this behaviour is a little irritating. The solution
seems to be slowly cycling between bands.

The behaviour is similar when changing band using software control via the
serial port. I am sure this is the reason TRX-Manager (and probably other
software packages too) gets the K3 filter settings confused.

73 de Björn /SM0MDG