[Elecraft] Filters

Don Wilhelm donwilh at embarqmail.com
Sat Jun 30 20:36:02 EDT 2018


Bill,
For SSB use LoCut and HiCut, not shift and width.  Shift and Width will 
drive you crazy because each time you reduce the width, you will have to 
adjust Shift to maintain a good center frequency.  HiCut.LoCut adjusts 
it automatically.

Set the low end between 300 and 400 Hz initially, then set the high end 
initially for 2800 to 2900.  If there is QRM on the high frequency side, 
reduce the HiCut, and if there is QRM on the low frequency side, 
increase LoCut.

You will find that you cannot cut the low frequency end very far before 
you lose intelligibility, but you can cut the high end significantly. 
While you will lose the voice characteristics, it will remain 
intelligible down to 1600 or 1800 Hz.

73,
Don W3FPR

On 6/30/2018 8:07 PM, Bill wrote:
> I recently purchased a K3 and trying to set up for SSB.I do not do code.
> Is there any recommended settings for the shift lo cut and width?
> It has the KFL3A-400 and the KFL3A-12.8 8 pole filters installed
> I have read the manual and it does not really help me.


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