Hi That basic design (though maybe not this exact part) has been kicking around for at least the last ten years. Various people have popped up reselling it. There are a lot of older Rb’s that are in the <2x10^-11 range at 1 second:
http://www.ke5fx.com/rb.htm <http://www.ke5fx.com/rb.htm> The gotcha with the part seems to have been that it’s “big and power hungry” for the people who are looking at the CSAC and it’s “expensive and not so stable” for the people who are playing with the LPRO-101 or FE-5680 style parts. Bob > On Aug 29, 2018, at 12:35 PM, Nick Sayer via time-nuts > <time-nuts@lists.febo.com> wrote: > > Got an e-mail from DigiKey this morning talking about this: > > https://www.iqdfrequencyproducts.com/products/pn/LFRBXO059244Bulk.pdf > > Unlike the other rubidium modules I’ve dealt with (which is to say, all FEI), > this one claims to have under 1E-10 stability at tau 1s (specifically, if I’m > doing the math right, it looks like they’re claiming 8E-11). The phase noise > looks to me to be… not fantastic (-67dBc/Hz @ 1 Hz) - again, unless I’m > misreading the spec. They’re also $1874 each (Q:1). But they are 4 cubic > inches(ish). > > I’m not seriously thinking of anything that expensive, but I thought I’d > throw it out there and see what other folks think (or perhaps it’s already > been discussed and I’ve missed it. If so, sorry). > _______________________________________________ > 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. _______________________________________________ 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.
