Luiz, I can express an opinion about the fan question. I think it is a much better idea to use a thermally-massive heat sink, still with enough fins to dissipate the heat. With a light (or no) heat sink the unit will be much more responsive to local air temperature variations, meaning that the frequency of the controlled oscillator will be less-well stabilized by the feedback mechanism.
IIRC, you need to explicitly turn on the sync-to-PPS, although it's not clear to me that there is any harm in leaving it on even when letting the Rb run on its own. At my previous job we had a PRS10 sitting on the shelf unused, and I fired it up to see if it still worked (it did). But it used a switching P.S. for the heavy-draw stuff (oven etc), and a linear supply for the main electronics stuff. I don't remember noticing any problems from that arrangement. Dana On Mon, Dec 3, 2018 at 3:59 PM Luiz Alberto Saba <[email protected]> wrote: > Hi people > > I'm new on this list and miles below you. > > I'm thinking of use a PRS10 with a LEA-6T providing 1PPS and a Raspberry > PI 3b+ with Lady Heather (2 instances, of course) to monitor/control > both devices. > > Reasons for my request for your comments: > > 1. Power supply. 24 V switched is OK or the classic > transformer/bridge/huge capacitors/regulator is best? > > 2. Heat. Do I leave PRS10 "as it is" or should i use heat dissipator/fan? > > 3. LEA-6T or LEA-5T or one of these GPSDOs: Trimble Thunderbolt; Trimble > UCCM; Symmetricom UCCM; Oscilloquartz Star 4+; TruePosition gpsdo as the > source of the 1PPS? > > 4. Does anyone here have LH 6 source code? LH 5 does not talk with PRS10 > (and with TruePosition too). > > 5. Just connect the 1PPS to PRS10 1PPS input or do I have to alter > something on the configuration? > > That's it. > > Thanks for your comments > > > Luiz Alberto Saba > > a recently nut from Brazil > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
