[Elecraft] KX1 Freq & Filter Offset?

[Leigh L. Klotz, Jr.]

Try using the RIT function to change the RX freq so you get 470 Hz. I 
read on this list that the filter response shifts below 500Hz - have you 
checked the peak at the 500Hz width?  It would be nice to know when it 
shifts down.
Leigh WA6ZNU

On Sun, 27 Jun 2004 12:17pm, Donald Nesbitt wrote:
> Using the narrowest filter setting to battle qrm in FD confirms that I 
> have
> the best copy on signals when they give me a recovered audio tone of 
> about
> 470 hz - and - when I tune them in for that peak, I am (of course) off 
> their
> frequency since the KX1 seems to have a "fixed" offset of about 600 +/- 
> hz.
> At QRO it's no big deal but running about 1/2 watt output (weak 
> batteries!)
> I am having great fun but sure would like to be able to zero-beat them 
> and
> still receive them on my peak.  So - is there any way to "slide" the 
> filter
> response up and down in the KX1 as can be done with the K2?  I've 
> confirmed
> the narrow filter peak at about 470 hz using a broadband noise source 
> and
> Spectrogram and can't see any way to "move" the filter response to 
> where I
> need it to be.  The way I read the bfo and dds circuits it may end up 
> to be
> a capacitor substitution as opposed to a software fix.  Surely I'm 
> missing
> something simple.    Any ideas?  73 es have fun --don n4hh
>
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73,
WA5ZNU Leigh