[Elecraft] K3 Narrowing the filters on SSB

[Ed Muns]

> Does reducing bandwidth using the Hi and Lo cut invoke any 
> roofing filters as the appropriate bandwidth  is reached?

Yes, whenever the DSP filter settings result in a bandwidth equal to the
next narrowest crystal filter, that narrower crystal filter kicks in.
That's why reducing HI CUT works so well.  As HI CUT is reduced, so is the
bandwidth, but also Fc (the filter center frequency) is kept centered in the
pass band.

73,
Ed - W0YK