P3 bug

[tomb18]

I have seen the P3 SVGA lockup on voice. It remains this way until the next transmission. However, I never paid attention to the P3 itself during this. I only looked at the svga output. Does the P3 hang as well? If it does, then it is most likely an issue with communications between the K3 and the P3. If the SVGA output is the only one to freeze, it is most likely the firmware in the SVGA / P3 at fault.There were some issues in the past with the P3 corrupting the communications between the K3 and itself. This was fixed. However, it could still be in some ways related. Just like the P3 does not always respond to a marker QSY.


The lockups are known to Elecraft. This was reported by me and discussed with an engineer over two years ago. This and a number of other bugs such as no averaging on the SVGA, the VFO B marker not responding to changes in the IF shift, and quite a few more.
I guess there is just not enough staff to deal with these issues. I therefore offer, as a volunteer, to fix these errors if Elecraft agrees. -)
73's Tom



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[Vic Rosenthal]

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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[David Cutter]

Is there a quick fix eg a button press that will unlock the freeze? Waiting
10s for it to unfreeze on its own would send me round the bend.

73
David
G3UNA

>
> No, I do not have the SVGA board and I see exactly what has been
> described.  Last night I saw it on voice several times for extended
> periods including one that was well in excess of 10 seconds.  I
> attributed it to RFI as I was running the amp, but I have run the amp
> before with P3 FW 1.09 and had not seen the extended freeze.  Most times
> the freeze would last less than a second or two.
>
> 73, Nate, N0NB
>

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[Phil Wheeler-2]

My P3 is without the SVGA adapter and I see no issues.

I wonder if the problems with that adapter relate
to RF susceptibility of the SVGA monitor rather
than a problem in the Elecraft hardware? Testing
whether the P3 hangs with the SVGA monitor
attached but not with it disconnected might
provide some insight.

73, Phil W7OX

On 12/29/14 10:00 PM, [hidden email] wrote:
> I have seen the P3 SVGA lockup on voice. It remains this way until the next transmission. However, I never paid attention to the P3 itself during this. I only looked at the svga output. Does the P3 hang as well? If it does, then it is most likely an issue with communications between the K3 and the P3. If the SVGA output is the only one to freeze, it is most likely the firmware in the SVGA / P3 at fault.There were some issues in the past with the P3 corrupting the communications between the K3 and itself. This was fixed. However, it could still be in some ways related. Just like the P3 does not always respond to a marker QSY.
>
>
> The lockups are known to Elecraft. This was reported by me and discussed with an engineer over two years ago. This and a number of other bugs such as no averaging on the SVGA, the VFO B marker not responding to changes in the IF shift, and quite a few more.
> I guess there is just not enough staff to deal with these issues. I therefore offer, as a volunteer, to fix these errors if Elecraft agrees. -)
> 73's Tom
>

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