[Elecraft] P3 Waterfall

[Jim Brown]

On Tue,3/24/2015 12:44 PM, Hunter Ellington via Elecraft wrote:
> Is there a sensitivity adjustment on the P3 that I need to play with?

All of your concerns are answered in the manual. The P3 is a very 
powerful and versatile product, and the SVGA board increases its 
capabilities. It's scan width can set to any value between 2 kHz and 200 
kHz. Amplitude range can be set between about 10 dB and 80 dB. The unit 
can be calibrated to the voltage at the K3's input terminals (a signal 
generator is required). Both amplitude and waterfall can be averaged or 
not, and average settings are adjustable. There are separate settings 
for the P3 display and the external display. The frequency resolution is 
quite good, and is improved by a factor of 10 or more by the separate 
FFT used to drive the SVGA output.

Here's a link to some lab quality spectrum measurements I've done with 
my P3/SVGA. k9yc.com/FTDX5000_Report.pdf The P3/SVGA combination has 
frequency resolution that is roughly 100X better than my HP 8509D.

73, Jim K9YC