Hello,
As temperature rises (in the shack), FP (34 degC) does, and a problem popped up; ERR PL1. I did check the PLL voltage. PLL1 = 7.5 (which seems to be the limit I guess), PLL2 = 3.5 (Sub-RX) at 28 Mc and FP 34 degC When FP was 22 degC: PLL1 = 3.8 and PLL2 = 3.4. After recalibration of the VCO, is gives E00272 / ERR VCO. 28Mc not useable anymore and an unstable PLL1 Voltage. Even 24 Mc needs about a second to give a go-ahead. I did open the K3 as to check connections of all the coaxial interconnection. No effect (after warming up again). It looks like PLL1 is very unstable in relation to the FP temperature and PLL2 much less. I do have a second K3 and see PLL1 at 7.3 on 28Mc (coming anxiously close to 7.5). Anyone a clue where to look or what to do? 73's, Evert PA2KW ______________________________________________________________ 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