[Elecraft] P3 bug

Vic Rosenthal 4X6GP/K2VCO k2vco.vic at gmail.com
Tue Dec 30 03:28:11 EST 2014


I tried with the SVGA disabled and it did NOT occur -- at least in a few 
minutes of testing. I suspect the same symptom might result from 
multiple causes.

Since Wayne has indicated that it is on their list, I will present my 
test parameters and leave it alone from here on. I am sure that they 
will get to it:

----------------------------------------------
Problem: display on P3 and SVGA stalls for extended time when returning 
to receive from transmit.

Frequency: from once every 3 transitions to once every 10 transitions.

Duration: usually about one second, sometimes longer.

Setup: K3 and P3 with SVGA. No programs running on PC that access K3, no 
KPA500 or KAT500. Nothing else connected to K3 aux or RS232 connectors 
(except digout1 to PR6-10). KRX3 installed, DVR not installed.

P3 in FIXED or TRACKING mode.

Firmware: K3: 5.01/2.83/1.16. P3: 1.29. SVGA: 1.16.

Operating parameters: CW QSK, TX TEST, KRX3 on or off, SVGA enabled, 
RS232 speed 38400, P3 refresh rate 10ms (changing between 0 and 100 
doesn't matter).

Test procedure: send groups of 3 V's at 25 wpm and observe P3 or SVGA 
display.

Notes: some people have seen this without SVGA. When I disable SVGA, the 
problem goes away.

-- 
73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/


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