I was thinking more along the lines of an app that would calculate an
actual numerical figure of merit. Something along the lines of:
* you tune to a signal of interest
* the app breaks up the surrounding spectrum into 100 Hz windows
* the app measures the magnitude of the energy in each 100 Hz window
that is time-correlated to the energy in the center window
* the app assigns some sort of weighting to the time-correlated energy
it finds in each 100 Hz window ... further from center gets weighted
more heavily
* adding up all the weighted slices of time-correlated energy yields a
figure of merit
The P3 can identify bad signals but it can't quantify them, and being
able to objectively quantify them might go a long way toward getting
some of them off the air.
73,
Dave AB7E
On 10/15/2015 12:01 AM, Jim Brown wrote:
On Wed,10/14/2015 11:33 PM, David Gilbert wrote:
One that is dear to my heart would be an application that quantifies
splatter and key clicks from crummy signals.
Properly adjusted, the P3, especially with the SVGA adapter, can do an
excellent job of displaying wide, dirty signals. Here are some things
I've done with my P3/SVGA. Also look at my P3 measurements (no SVGA
yet) in
http://k9yc.com/K6XXAmpTalk.pdf
Yes, the P3 dynamic range is only about 100 dB and only 80 dB can be
displayed on screen, but all the serious trash is in the range of
20-50 dB below the peak of any given signal.
73, Jim K9YC
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