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
Emails are not formal business letters, whatever businesses may want.
RFC1855 says there should be an address here, but, in a world of spam,
that is no longer good advice, as archive address hiding may not work.
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