[Elecraft] Possible P3 Anomaly

[Ken Kontor via Elecraft]

All,
I have noticed the long (several second hang time) before the P3 switches back to RX after Xmit.I do have the XVGA board installed to drive my 20" 16x9 Monitor.I have also noticed that at times the display on the monitor is offset from the P3 display, eg the P3 display shows signals within my TX and RX band width markers, but the signals (or the marker) do not align on the large monitor. Resetting the P3 resolves the display alignment problem, but not the refresh or hang time problem.
Ken - W8KEN 

     On Tuesday, December 30, 2014 1:27 PM, Fred Jensen <k6dgw at foothill.net> wrote:
   

 Since Wayne has returned from the holidays and the P3 Freeze is on the 
list, here's a little more "data" but not necessarily "information" ...

I have never observed the behavior being discussed on the P3 Bug thread.

I have always observed the following:

Select band 1 [doesn't matter what band], set REF LVL to put the noise 
on the baseline.  Waterfall background is black, signals show up white 
[I'm in monochrome WF mode].

Select band 2 [doesn't matter what band], set REF LVL to put the noise 
on the baseline.

Re-select band 1.  The noise will be above the baseline by about 10 dB 
or so and WF background will show the noise. After maybe 2 seconds, 
noise shifts down to the baseline and WF background goes black.

Happens every time I change bands, regardless of how I do it [BAND UP/DN 
on K3, band buttons on KPA500, or typing a frequency in the N1MM entry 
window], and it always has.

I don't think it is related in any way to the discussion but one never 
knows with software.  During those 2 sec, it appears the P3 is receiving 
and displaying a valid spectrum, just offset above the baseline.  It's 
not a problem for me, I consider it normal operation and it is what it 
is.  But, just in case it's relevant ...

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org
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