If I were to buy an HP 10811A OCXO to use as a portable, battery powered frequency standard, how would you recommend that it be powered and packaged? Assume that the final package would be powered 24/7 and sitting on a shelf most of the time. Prior to portable use, it would be checked against my GPSDO. Portable use would probably be at worse a few days, but more likely less than a day.
I'm thinking of using a couple of 12V, 7AH SLA batteries and float charging them. Some charge circuits use pulsing current for SLA batteries. Would this affect the OCXO? Obviously too much air flow will be a problem. Can the OCXO, batteries and associated circuitry be sealed in a box with no vent holes (not strictly air tight)? What about putting the OCXO in a small styrofoam box by itself? Will that cause overheating or other issues? How about vent holes in the overall enclosure and baffles around the OCXO to minimize air flow? Should I forget the whole idea and just buy a rubidium? Joe Gray W5JG _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
