[time-nuts] Ashtech Z12 question.

[Mark Sims]

The "new" Z12 from Ebay came in today.   Works fine (except bad memory backup batteries).  So antenna, power supply, cables are OK.   Replacing the memory backup batteries is fairly easy, except for the gazillion and three screw to open it up.  A pair of memory batteries costs around $15. 

I need to go over the bad one in more detail and see if I can find any bad caps... I had done a quick in-circuit test before replacing the batteries and did not see anything suspicious.  It could also be something on the RF side or oscillator has drifted out of range.