What can you say about the used car sales site. Rarely bargains anymore. Prices are genrally nut for a time-nut and unfortunately its driven the used equipment pricing through the roof. Yes I purchased my HP 105s for sub $100 Regards Paul
On Thu, Dec 8, 2011 at 9:34 AM, Mark Spencer <[email protected]> wrote: > Thanks, the price is very high for me as well. The starting price is > almost an order of magnitude more than I paid for my FTS 1050. I won't be > bidding. > > --- On Thu, 12/8/11, Azelio Boriani <[email protected]> wrote: > > > From: Azelio Boriani <[email protected]> > > Subject: Re: [time-nuts] High end OCXO alternatives (or maybe an high > perf Rb ?) > > To: "Discussion of precise time and frequency measurement" < > [email protected]> > > Received: Thursday, December 8, 2011, 9:17 AM > > The price is very high (for me) but > > on the usual auction site again you can > > find an FTS1050 too: 150714877944 > > > > On Thu, Dec 8, 2011 at 2:34 PM, John Ackermann N8UR <[email protected]> > > wrote: > > > > > Hi Mark -- > > > > > > This may be challenging. A good FTS-1050 can be > > very, very good indeed. > > > I have one that seems to have a wideband noise > > floor problem (about 20dB > > > worse than it should be) but has stability below 3e12 > > out to 200K seconds > > > -- it's just quite amazing. > > > > > > Plots attached, with an HP 5065A Rb as the > > reference. The short term > > > stability (below about 100 seconds) is limited by the > > reference, and that's > > > the hard part; a maser is about the only thing that > > can give you low short > > > term and low term stability. > > > > > > Lacking a maser, the best strategy may be to use two > > references for > > > different tau ranges -- a very good OCXO for short > > term, and then an Rb for > > > long term. Combine the plots and you'll probably > > see the point where the > > > lines intersect. > > > > > > John > > > ---- > > > > > > On 12/7/2011 9:41 PM, Mark Spencer wrote: > > > > > >> Greetings: > > >> > > >> I'm contemplating starting a search on the > > "typical auction sites" for a > > >> high end OCXO (or possibly a high end Rb) that > > would be suitable for > > >> characterizing the performance of an FTS > > 1050. From time to time I've > > >> seen ADEV figures of in the 10E-13 range (at a > > typical Tau of 100 seconds) > > >> when comparing the FTS 1050 in question to one of > > my GPSDO's and one of my > > >> Rb's. > > >> > > >> At this point I'm contemplating looking for: > > >> > > >> Another FTS 1050 > > >> Various Datum / FTS stand alone OCXO's > > >> An Oscilloquartz BVA OCXO > > >> A Sulzer OCXO > > >> Maybe an HP 5065 > > >> > > >> (I've already assembled a modest collection of > > half a dozen various > > >> 10811's and don't really want to buy any more at > > this point.) > > >> > > >> Essentially I'm looking for something with a > > reasonable likely hood of > > >> consistently having an ADEV in the 13's at Taus of > > 100 seconds or so. > > >> I'm thinking that another FTS 1050 is probably the > > most likely > > >> alternative but I'm trying to keep an open mind to > > other options. I'm not > > >> really interested in a Cesium standard but if > > anyone has any other > > >> suggestions of products I could look for (other > > than a H maser (: ) > > >> comments on or off list would be > > appreciated. > > >> > > >> > > >> Regards Mark Spencer > > >> > > >> > > >> > > >> > > >> > > >> _______________________________________________ > > >> 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. > _______________________________________________ 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.
