Hi All of the eBay OCXO’s are pulled from scrap gear. If they have been on eBay for a while, it’s a good bet that the gear has been pretty well picked over. The only time you can get fairly good parts is when the first hit the market.
Bob On Nov 6, 2013, at 5:54 PM, Daniel Mendes <dmend...@gmail.com> wrote: > > Ok... maybe i´ll make a not so smart question but... if the MV89 is bad, > what´s the recomended parts from ebay for something like that? (10MHz OCXO to > upgrade some sort of equipment) > > (I´m asking because I did almost the same thing than our friend Hagar... I > noticed that the MV89 wasn´t as good as I would like it to be). > > Daniel > > Em 06/11/2013 20:29, Bob Camp escreveu: >> Hi >> >> You would want a 50 ohm load on the output of the OCXO. Based on recent >> experience, you may have to buy 10 or more before you find one that is >> reasonably close to working correctly. The low output issues are far from >> the only problem on these units. >> >> Bob >> >> On Nov 6, 2013, at 9:27 AM, HagaaarTheHorrible >> <hagaaar587pl...@googlemail.com> wrote: >> >>> Hello there, >>> >>> I'm trying to build a low phase noise signal generator with a Morion MV89 >>> OCXO. ( http://www.morion.com.ru/catalog_pdf/MV89-OCXO.pdf ) >>> The 10 MHz Sine coming from the MV89 shall be converted to a 10 MHz >>> rectangle with the LTC6957-3 ( >>> http://cds.linear.com/docs/en/datasheet/6957f.pdf ). >>> Since the information in the MV89's data sheet is rather thin and shipping >>> is taking a lot longer than expected/promised, I thought I'd ask if someone >>> here has any experience with it and maybe can answer some questions I >>> have... >>> >>> 1. Does anyone know if the MV89 is internally AC coupled / if the Output >>> Sine has an Offset? >>> >>> 2. I'm not sure if termination is needed in this case or which way to >>> terminate would be best for a low phase noise/low jitter application. Can >>> anyone give me some hints to what would be important? >>> >>> >>> Thanks a lot! >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
