Whoops ... also intended to post this reply to the list ....
Begin forwarded message:
> From: Michael Babineau <
[hidden email]>
> Date: June 11, 2004 8:49:37 AM EDT
> To:
[hidden email]
> Subject: re: KX1 Zero Beat
>
> "Leigh L. Klotz Jr" <
[hidden email]> 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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