But only on JT modes? And this is a 7XXX serial number KX3. I do not think this has anything to do with the physical power connections, but I did inspect them and they were all tight. Going to pay more attention to see what might be going on during these Tx cycles.
On Tue, Mar 21, 2017 at 3:17 PM, Don Wilhelm <[email protected]> wrote: > Rich, > > First check your power cables carefully for any sign of looseness. > If none found, try wiggling the KX3 2.1mm power plug to see if that > induces the failure. You may have a failed power jack. > Early KX3s did not have the power jack glued to the board and could fail > (even with the right angle power plug). The failure would be intermittent. > > I don't think it has anything to do with your operating mode. > > 73, > Don W3FPR > > > On 3/21/2017 2:47 PM, rich hurd WC3T wrote: > >> Okay, here's an odd one and I couldn't find any suggestions in the >> archives >> or using Google-fu. >> >> I can run any mode with my KX3/PX3/KXPA100 station with no incident except >> for JT modes; using WSJT-X, I will complete a Tx cycle and randomly the >> KX3 >> will bounce (power off/power on.) >> 9 times out of 10, I'm operating at 3W. I'll sometimes bump to 5. To >> test this, I have also bumped it to 11 watts to kick the amp in and I get >> the same reaction; that is, sometimes (but not always) the station just >> decides it's had enough and the power bounces. Power supply is a Samlex >> SEC-1223. >> > -- 73 (or 72 for the QRP folks), Rich Hurd / WC3T Northampton County RACES EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 Grid: *FN20is* 40°45.68' N 75°17.33' W ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
