> 1) In an unconditioned/semi-conditioned space. The ambient temperature can > slew 20*C easily over the holdover period. (Think sun hitting an outdoor > enclosure first thing in the morning - the ambient temperature tends to rise > quickly).
It would be interesting to get some data on that. Clouds blocking the sun or holes in the cloud cover would be a variation. If the sun hits the enclosure, how long does it take the air inside to heat up and then how long does it take the gear inside to warm up? One of the classic tools for problems like this is to attach a big blob of stuff to the crystal to dampen thermal changes. When you design your test setup, can you leave room for a brick and collect data with and without when you toss it into the freezer? -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.