[Elecraft] Xtal Filters

[ab2tc]

Hi again,

I think your particular problem has a fairly simple solution. Press ("hold")
the I/II button (on the HI/Width button) and set up the alternate 1.8kHz the
way you want it. Now you will be able to switch between a wide and narrow
SSB setting without twiddling any knobs. This is the way I do switch between
"normal" and "contest" mode. But I still think the function of the XFIL
button should be different in SSB mode.

Knut - AB2TC



Tony Fegan VE3QF wrote:
> 
> Hi Knut and all,
>     I totally agree with you. CW operation of the filters is fine. With 
> SSB it would be way easier if the filter centre frequency would be 
> reduced by a small amount as the width is reduced. In the "heat of 
> battle" those small filter knobs are not easy to adjust without nudging 
> the VFO (I don't have much feeling in my finger tips).
>     I would prefer to use the XFIL button to immediately switch to a 
> narrower filter which is suitably centered for SSB reception. With a 
> 2.1KHz xtal filter the low frequency could be about 250Hz and 350Hz for 
> a 1.8KHz filter.
>     As this (XFIL button) seems to be the unused button on the K3 maybe 
> one or two extra narrower filters for SSB could be setup in DSP with 
> appropriate centering. This then would function even if you did not have 
> the extra "roofing" filters. It would be way simpler than fiddling with 
> those filter knobs. I always thought those knobs should have had a very 
> positive detent (a 1/2 in. longer knob would help too). My shaky hands 
> don't handle them well at all.
> 
> Food for thought.
> 
> 73
>     Tony Fegan VE3QF
>     K3 #137
> 
> ab2tc wrote:
> <snip>
> 
> 

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