After the K3 had been running for a few hours yesterday evening, just listening to the bands, it stopped working with ERR PL1 (and PL2). These were genuine hardware errors - neither of the two VFOs would tune and both receivers were dead. Attempts to re-calibrate the VCOs ended with ERR VCO and ERR VC4.
I switched off and left the problem overnight, and this morning both VCOs calibrated successfully with no further errors so far. (A notable difference was the successful calibrations took much longer over some of the steps. The failed attempts had rattled through all the steps at the same high speed.) The firmware was MCU 4.12 / DSP 2.60 / FPF 1.13. After everything was working correctly again, I have updated to MCU 4.14. Hardware is K3/100 #724, with KAT3, KRX3, KXV3 and all modifications to date. The question is: why did this happen? And with CQWW SSB coming up, could it happen again? -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek ______________________________________________________________ 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

