I'm inclined to agree. (I'm not sure I'd want to use my Thunderbolt as the reference oscillator for an instrument that had 20 ps of resolution, nor would I trust the long term accuracy of an ocxo without being able to compare it to a reference such as an gpsdo.)
Sent from my iPad On 2011-03-17, at 7:30 PM, "J. L. Trantham" <[email protected]> wrote: > Personally, I would get both. > > Joe > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of J. L. Trantham > Sent: Thursday, March 17, 2011 9:24 PM > To: 'Discussion of precise time and frequency measurement' > Subject: Re: [time-nuts] Equipment question: OCXO versus GPSDO + XTAL > > > Depends on what you want. Stability or accuracy? Bench or portable? The > TBolt or another GPSDO will certainly be accurate. Probably fairly stable > as well. However, if you need portability, the OCXO is the only way to go. > You will have to look at the stability measurements of the OCXO versus the > GPSDO to choose that one > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Wolfgang > Sent: Thursday, March 17, 2011 8:51 PM f > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Equipment question: OCXO versus GPSDO + XTAL > > > On Friday 18 March 2011, Greg Broburg wrote: >> I have a 53131 and 53181. There were several TB options. >> I dont have a manual for the 53230A. If you could, see what the option >> TB assembly PNs are, then go looking for these assemblies. Mine just >> dropped in and did the autocal right off. I paid 300 to upgrade the >> 53181. The autocal using a DAC works very well, no more tweaking Rs or >> Cs and waiting a day for them to restabilize. >> > Don't recall where I read this but IIRC: > > There are several other options for the 53230A which can be added lateron > by the user ("kits") but the OCXO can only be installed lateron by sending > the device to service. > > Thanks to the list for the answers - but: > > It seems like everybody is telling me "go for the cheaper, add the OCXO > lateron if you need it" - but that's not what I'm after. What I'd really > like to do is to make up my mind based on educated opinions on this list > whether the built-in OXCO option offers any advantage at all compared > to standard clock + good external reference. > > - Wolfgang, DL1SKY > > _______________________________________________ > 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. > > > _______________________________________________ > 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. > > > _______________________________________________ > 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. _______________________________________________ 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.
