[Elecraft] P3 cw waterfall
Jim Brown
jim at audiosystemsgroup.com
Wed Dec 9 19:42:36 EST 2015
On Wed,12/9/2015 1:10 PM, Barry N1EU wrote:
> Is the waterfall speed adjustable?
Sure.
> Any brilliant insights on optimal cw waterfall setup gratefully
> appreciated!
I don't use the waterfall to copy CW, I use it to find weak signals, and
to find empty holes in a crowded band. For that, I set the top of the
display for maximum averaging, and I set the waterfall as slow as it
will go. I set the display height to 24 dB for day to day operation, and
42 dB in contests (and DX pileups). I set the bottom of the display so
that an empty channel shows up as tiny flecks of noise. I ALWAYS operate
in Fixed Tune Mode, so that display averaging continues to accumulate as
I tune across the band. When you do all of these things, random band
noise goes away (it averages out to zero) so you're left with signals
and coherent noise (like switching power supplies). Set the display
width depending on what you're doing at the time. For example, to
monitor a quiet band for activity, I typically set for 100 kHz or 200
kHz. In a contest, I'll set it for the width of activity for that
contest. For a DX pileup, I go about twice as wide as the pileup, with
the DX at one end.
It can also be quite useful to assign commonly used settings to the
soft-keys. I assign the Fixed Tune Toggle, the Peak/Average Toggle, and
the display widths that I most often used. For the P3 that I use for
spectrum measurements, I also assign the Capture to RAM command.
73, Jim K9YC
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