> Hi, > > Like many, I've acquired a fair amount of surplus test equipment off of Ebay > which could use the services of good master frequency standard. So I'm > looking to discipline an HP 10811 VXCO to provide this. > > Any general consensus about the best design for a hobbyist to build? > I'm familiar with the Brooks Shera design, the G4JNT Jupiter-T design, > the TAC-2 circuit, and the VE2ZAZ design. I take it from discussions > I've seen in the archives of this list that the VE2ZAZ design makes a > number of simplification/performance tradeoffs. > > Is there a design I haven't listed which is "better" than the others? > I'm quite familiar with microcontrollers, FPGAs, spinning my own > PCBs, etc, so I'll roll my own if I have to, but I'd prefer to build > a variation on someone's tried and true design. > > I'm aware of products like the Fury, but I'd like something I could tinker > with, and the cost is hard to justify for a hobbyist. > > Scott
Scott, Hard to say which is better at this point; there are a number of variables, not the least of which is the intrinsic short-term stability of the OCXO you use. Do have a close look at James Miller's GPSDO: http://www.jrmiller.demon.co.uk/projects/freqstd/frqstd.htm I recently tested one and it makes it to 1e-13 at one day, which is really nice for a simple, cheap, homebrew GPSDO. /tvb _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
