[Elecraft] KAF2

Mon Jan 7 08:47:01 2002

Hi hi - Just for the record, I noted Tom's brilliance quite awhile back
and suggest we add "incredible generosity with his time" to that. He
deserves an award!!!!!!!!! 73/Tim Logan

Charles Bland wrote:
> 
> Having just been thru this, I'll ditto Tom's second paragraph and
> raise him a few comments.......
> 
> It will be an educational and useful experience to go through the
> XFILs and KAF2 settings using Spectrogram. It will give you an
> opportunity to observe the filter's effect on your audio while you are
> at it. You might even tune across some SSB and CW activity just to
> look and see how things work.
> 
> Chuck Bland  n6dbt
> 
> Note Tom Hammond N�SS's stunning brilliance and Chuck's apt
> reply (gack!)
> 
> To:                     "Andy Anderson W5VCJ"
> <[email protected]>, [email protected]
> From:                   Tom Hammond N�SS
> <[email protected]>
> Subject:                Re: [Elecraft] KAF2
> Date sent:              Sun, 06 Jan 2002 19:13:21 -0600
> 
> > Andy:
> >
> > >I just got through adding the KAF2 and KNB2 to K2 #1918, and I have a
> > >question about the KAF2 alignment. At the very end, after adjusting R1 and
> > >R2 for AF1 and AF2, it says you should do the BFO and cal fil stuff to match
> > >your sidetone. This was already done before adding the option (only about a
> > >week ago) using Spectrogram, but I don't know if it should be redone after
> > >the install.
> >
> > Were it me, and assuming I already HAD my xtal filters (BFO) set to my
> > liking, I'd turn the sidetone on at a low level (say 10-20 on the display
> > when you set ST L), and then adjust the KAF2 to THAT tone.
> >
> > Another way would be to run Spectrogram and, first ensure that the xtal
> > filters were still centered on the sidetone frequency marker in
> > Spectrogram, and then open the xtal filter up to at least 700Hz, wider if
> > you have it available, and then turn the KAF2 on and adjust it so that the
> > received noise peak is also centered on the Spectrogram sidetone marker.
> >
> > Tom Hammond   N0SS
> >
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> 
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