I disconnected all the cables to my K3, set it up on a temporary workbench, connected the DC and KUSB and commenced to run the K3 Utility once again.
The great news is that everything loaded up correctly and this time I checked the filter calibration/settings in the utility before powering down. One of the sub-receiver filter settings was incorrect and one of the filter offsets on the main receiver was slightly off as well---so I corrected them and applied the updated settings. Powered down and then powered back up---everything looks good! Disconnected the KUSB after the power down and powered back up a couple of times and no error messages at all. Don't know if that was what the problem was but at any rate I MAY have fixed it this time. I say may because I will need to hook everything back up (KPA500, P3, speakers, headset, antennas, etc.) and give it a good test run before I'm sure it's OK. Either way it goes later on I'll reconfirm the fix or else report otherwise; hopefully all will be well for now. Thanks again for all the help and suggestions; maybe that one of "disconnecting all other cables" might have been the one thing that skewed everything off the right path to begin with. Very seventy-three to all, Jeff -- View this message in context: http://elecraft.365791.n2.nabble.com/New-K3-utility-software-required-message-on-my-K3-tp7212149p7214315.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html