I have also had intermittent problems. K3 #1442, P3 #0089, XP Pro, only two mods applied yet(10 db gain mod that came with it, and the one with the 470 ohm resister). In the beginning it was as bad as getting timeouts to the radio from HRD or N1MM or even the utility program. Bypassing the P3 eliminated the problem and reinstalling it became intermittent. I inspected the RS232 cable ends and the connectors for pushed or bent pins and found nothing but it seemed to get better. I then removed the cover, inspected the ribbon cable position and seating, then removed it and reseated it. It then seemed to work much better but still hangs up the display once in a while. Power cycle the P3 to clear it. Sometimes, after a while, it seems to break loose on it's own. No more timeouts though.
I was reading the mods manual and wondered if the mod where the chokes are jumped out might be part of the problem. Also realized I don't remember reconnecting the ground to the K3 after doing the 10db mod and do not have one conneced to the P3 and also should probably ground the PC case to the same ground buss. Wonder if the "pin one" problem is causing some of this. Thoughts?
I called today intending to order the DSP all the outstanding mods but realized I had a lot of questions. Will call tomorrow(today) when they are not at lunch.
73, de Jim KG0KP
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