[Elecraft] [K1] Filter question..

[Don Wilhelm]

Gil,

You adjust the RX BFO trimmer C20.  Check that RFC1 is actually 33 uHy, 
it is frequently exchanged with RFC2 while is 22 uHy.  If your color 
acuity is not sufficient to clearly determine the difference between the 
red bands and the orange, ask a female for assistance.

I would suggest that you will do better using an audio spectrum analyzer 
in a line display mode rather than a waterfall.  You can more easily 
determine the center of the passband

Once you have set the center of the passband to your desired center 
frequency (also set the ST P menu to agree), turn thee TEST/OPER switch 
on the bottom of the RF board to TEST.  You will find a spike at your 
transmit pitch.  Adjust C13 to place that spike at the same frequency as 
your ST P setting.

73,
Don W3FPR

On 9/23/2012 9:43 PM, Gil G. wrote:
> Hello,
>
> Please have a look:
>
> http://radiopreppers.com/images/K1_FL3.png
>
> This is my K1 on FL3. Looks similar on FL2, better on FL1.
> How do I bring it to center on 600Hz?
>
> Thanks,
>
> Gil.
> --
> PGP Key: http://keskydee.com/gil.asc
>
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