[Elecraft] LP-PAN 2 and P3

[David Gilbert]

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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