[Elecraft] K2 Scan rate.

[David Woolley]

Geoffrey Mackenzie-Kennedy wrote:
> 
> 1) It is possible to slow down the scan rate of the K2 by a hardware 
> modification which would not affect 'normal' tuning when using either 
> VFO 'A' or 'B' and without having to reduce the width of the band being 
> scanned?

 From the looks of the circuit diagram, that has to be done entirely in 
firmware, based on the 4MHz crystal.

> 
> 2) Is there a S / S+N threshold below which scanning will not stop? If 
> there is, can the threshold be changed by some hardware modification?

I reckon that this has to be based on VSMTR, so one could change the 
threshold, but at the cost of upsetting the S meter.  I would expect the 
threshold to either be based on the computed S meter reading, or based 
on some sort of estimate of the actual background noise.

There is no non-software signal present signal.


-- 
David Woolley
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