[Elecraft] Another Idea for New Firmware
Francis Belliveau
[email protected]
Thu Dec 12 07:11:03 2002
On: Wednesday, December 11, 2002 7:31 PM
"Lyle Johnson" <[email protected]>
wrote:
> ...
> If a new version of main controller PIC had enough memory, it might be
> possible to allow setting up, say, 20 or more "filters" that are really
just
> used for SSB using the SSB board filter and offsetting the VFO and BFO by
50
> or 100 Hz per "step." These filters would be enabled by setting the mode
to
> SSB at some particular XFIL selection, and selected by turning the KEYER
> knob (not useful in SSB mode).
>
> This would then give the SSB operators a passband tuning control. If
enough
> memory were available, it could also be used in conjunction with more than
> one XFIL selection so you could have passband tuning as well as narrower
> bandwidths.
> ...
Forget the memory for a table, just a menu entry to limits on the range of
motion and the keyer setting can do the rest using a ratio algorithm. I
admit that the ratio may need to be tapered to work well but this could work
for any filter.
Fran