[time-nuts] Z3805A cooling requirements?

Mark Spencer mspencer12345 at yahoo.ca
Fri Dec 21 14:35:30 UTC 2012

Did a quick experiment with an MV89 that has been powered down for several months.   I let the unit warm up for approx 10 hours, then began to blow air over it with a muffin fan.   As I expected the unit changed frequency somewhat.  On average there also may be a bit less short term variation in  frequency after the fan was turned on.  The environmental conditions in the room where the MV89 is are also not the best today.

I'll let this sit for a few days and then turn off the fan and see what happens.   I'll likely also measure the BVA reference against another OCXO to confirm the BVA is not drifting during the test.

Mark Spencer
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