[Elecraft] KAF2

Sun Jan 6 23:55:01 2002

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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