Hi Dale,
Glad you like the new controls, thanks for trying them out and giving me
some comments. I'm mostly a digi mode operator, so feedback from CW ops
really helps me sorting out what works and what does not.
I'm assuming you'd tuned a CW sig, whacked the filter using the lo cut +/-
buttons and then used the width to narrow it up some more and it converged
to 700 hz or so which left the desired sig out of the passband.
What the width control does is to narrow the filter symmetrically about
whatever the current center point is. When you used the lo cut buttons you
moved the center point, so it converged to the new center point when narrowed.
I could change the width control so that (in cw mode) it took the current
CW Offset (and any IF shfit) as the desired center point and
narrowed/widened things asymmetrically about that 'virtual' center
point. (I'd probably fall back to current behavior if the 'virtual' center
point was not inside the current passband)
I'm not sure which of these approaches is the 'right thing' from
the operator's point of view. I'd like it to 'just work' and not have the
operator need to know the minutia to be able to use it naturally.
Anyone else have any opinions on what the 'right thing' to do in this case is?
Regards,
Bill (kd5tfd)
At 10:06 AM 5/30/2005, Dale Richardson wrote:
Hi Bill,
I really like the new filter controls. I use them quite effectively on
psk. I noticed that when I use them on cw the low cutoff when the filter
is narrowed is 700 Hz. There is a conflict between the 600 Hz default
setting for CW Pitch in the DSP setup screen. This causes the signal to be
lost when narrowing the filter. Of course this is easily remedied by
changing the default CW pitch to 700 Hz. The ability to shift the if is
just super! Good job!!
73,
Dale AA5XE
