[time-nuts] Tuning a Trimble Thunderbolt

Charles Steinmetz csteinmetz at yandex.com
Tue Apr 21 17:35:54 EDT 2015


Pete wrote:

>It'd be nice if there was some way to keep the crystal going
>through power interruptions, even if the oven itself cooled off. I
>suspect Trimble (correctly) assumed that the vast majority of these
>units were to be installed in cell sites with reliable power so that
>wouldn't be an issue.

Put the whole TBolt on a UPS (preferably, the "on-line" or 
"double-conversion" type).  A 2kW UPS should run a TBolt (10W steady 
state power consumption) for about a week, depending on the 
efficiency of the power supply you use.

Best regards,

Charles






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