Whoops ... also intended to post this reply to the list ....
Begin forwarded message:
From: Michael Babineau <[EMAIL PROTECTED]>
Date: June 11, 2004 8:49:37 AM EDT
To: [EMAIL PROTECTED]
Subject: re: KX1 Zero Beat
"Leigh L. Klotz Jr" <[EMAIL PROTECTED]> wrote :
>I find zero-beating the KX1 hard.
Try setting the filter to 500hz and peaking the received signal ...
works
for me. It takes a bit of practice but become intuitive in a short
while.
The reason I use the 500 hz setting and not a narrower setting is ...
If you hook the KX1 up to a PC running something like Spectogram you'll
probably see that the center of the passband shifts a bit lower than
normal
with the filter at the 300 hz position, such that 600Hz is no longer
in the center
of the filter passband.
I'm not sure what the reason it but I have observed the same thing on
my
Ten Tec Scout with the variable "Jones" filter so I an inclined to
believe that
this is an artifact of the design / implementation of this sort of
filter ... perhaps
Wayne can comment on this.
Michael VE3WMB
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