[Elecraft] K3: Filter settings when changing bands

[David Ferrington, M0XDF]

Fantastic - I've been wondering what was cuasing that - it's a problem  
if your logger changes band, too it seems.

Lyle, could you comment please?
-- 
73 de M0XDF / K3 #174

On 23 Mar 2008, at 21:46, Björn Mohr wrote:

> 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