[Elecraft] Fwd: KX1 Zero Beat

[Michael Babineau]

Whoops ... also intended to post this reply to the list ....

Begin forwarded message:

> From: Michael Babineau <michael.babineau at sympatico.ca>
> Date: June 11, 2004 8:49:37 AM EDT
> To: Leigh at WA5ZNU.org
> Subject: re: KX1 Zero Beat
>
> "Leigh L. Klotz Jr" <Leigh at WA5ZNU.org>  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
>