[Elecraft] Roofing Filter Usage

[ab2tc]

Hi,

I agree with forgetting about the XFIL button and use the passband controls
exclusively. But using SHIFT/WIDTH on SSB is very awkward as you constantly
have to touch up both controls. Use HiCut/LoCut instead. Leave LoCut at
300Hz and use HiCut as the QRM fighting tool. If you have the 1.8kHz filter
you will see it kick in automatically when HiCut is at or blow 2.1kHz. If
your cut frequencies are on 350, 450 etc boundaries, pop back to SHIFT/WIDTH
mode and adjust the SHIFT one click, then go back to HiCut/Locut and they
should be on even 100Hz boundaries (unless of course you prefer it the other
way).

AB2TC - Knut


Stephen  Prior wrote:
> 
> Hi Mark
> 
> Try reducing the bandwidth further using the width control, then the DSP
> filtering will be responsible for narrowing the bandwidth.  You could also
> try adjusting the shift control to slide the passband one way or the
> other.
> Although I have all my filter slots filled, I never use the xfil button to
> change width, just the width control.  The effect is the same.
> 
> Yes, it's a lovely radio, and I came from a TS480 too, via a K2 that is
> :-)
> 
> 73 Stephen G4SJP
> 
> 
> On 28/10/2010 11:41, "pastormg2 at verizon.net" <pastormg2 at verizon.net>
> wrote:
> <snip>
> 

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