[time-nuts] Best OCXOs, phasenoise wise.
I'm quite sure someone has went down this road... so I better ask first. Phase noise wise what would be the best OCXO's that we could find around, taken from equipments, or ebay etc. I have in mind essentially the HP ones. the PIEZZO ISOTEMP, CMAK, Vecton(harder to find) and some of the small wenzels, BLIBEY, OACs and a few more. Not necessarily just 10MHz... other freqs are of interest too. Any generic heading info/help? Many Thanks. Luis Cupido. ct1dmk. ___ 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.
Re: [time-nuts] Best OCXOs, phasenoise wise.
Wenzel ULN-grade parts and Valpey-Fisher's VFOV110 line come to mind. There's also a vendor in the UK whose name escapes me who has been advertising ULN-class OCXOs lately (I think someone from there is actually on the list.) The term ultra low noise is common in the XO business, but only a few vendors are serious about competing in that sector. -- john, KE5FX -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on Behalf Of Luis Cupido Sent: Monday, June 28, 2010 7:02 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] Best OCXOs, phasenoise wise. I'm quite sure someone has went down this road... so I better ask first. Phase noise wise what would be the best OCXO's that we could find around, taken from equipments, or ebay etc. I have in mind essentially the HP ones. the PIEZZO ISOTEMP, CMAK, Vecton(harder to find) and some of the small wenzels, BLIBEY, OACs and a few more. Not necessarily just 10MHz... other freqs are of interest too. Any generic heading info/help? Many Thanks. Luis Cupido. ct1dmk. ___ 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.
Re: [time-nuts] Best OCXOs, phasenoise wise.
And the price will make your eyes water!! Dave P. -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of John Miles Sent: 28 June 2010 15:33 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Best OCXOs, phasenoise wise. Wenzel ULN-grade parts and Valpey-Fisher's VFOV110 line come to mind. There's also a vendor in the UK whose name escapes me who has been advertising ULN-class OCXOs lately (I think someone from there is actually on the list.) The term ultra low noise is common in the XO business, but only a few vendors are serious about competing in that sector. -- john, KE5FX -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on Behalf Of Luis Cupido Sent: Monday, June 28, 2010 7:02 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] Best OCXOs, phasenoise wise. I'm quite sure someone has went down this road... so I better ask first. Phase noise wise what would be the best OCXO's that we could find around, taken from equipments, or ebay etc. I have in mind essentially the HP ones. the PIEZZO ISOTEMP, CMAK, Vecton(harder to find) and some of the small wenzels, BLIBEY, OACs and a few more. Not necessarily just 10MHz... other freqs are of interest too. Any generic heading info/help? Many Thanks. Luis Cupido. ct1dmk. ___ 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.
Re: [time-nuts] Best OCXOs, phasenoise wise.
I do not think I can answer that question the way you present it. It depends to a large degree on what you want to use it for. If you want to multiply to microwave frequency there are 100 MHz units out there with excellent low phase noise in the $ 400 to $1400 price range, if it is Allan Variance I have seen HP10811's for around $100 and from there up with the sky (Oscilloquatz) the limit. Bert Kehren In a message dated 6/28/2010 10:02:36 A.M. Eastern Daylight Time, cup...@mail.ua.pt writes: I'm quite sure someone has went down this road... so I better ask first. Phase noise wise what would be the best OCXO's that we could find around, taken from equipments, or ebay etc. I have in mind essentially the HP ones. the PIEZZO ISOTEMP, CMAK, Vecton(harder to find) and some of the small wenzels, BLIBEY, OACs and a few more. Not necessarily just 10MHz... other freqs are of interest too. Any generic heading info/help? Many Thanks. Luis Cupido. ct1dmk. ___ 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.
Re: [time-nuts] Best OCXOs, phasenoise wise.
Hi Output frequency matters quite a bit. What is good phase noise at 100 MHz isn't going to be very impressive at 10 MHz. Frequency offset also matters. Optimizing for -192 dbc / Hz at 100 KHz offset is a very different thing than trying for -155 dbc / Hz at 10 Hz offset. You are unlikely to find an OCXO that is real good both at 10 Hz and at 100KHz. All that said, the OCXO in the Thunderbolt isn't all that bad for phase noise. Since TBolts are easy to find, so are the OCXO's. Bob On Jun 28, 2010, at 10:02 AM, Luis Cupido wrote: I'm quite sure someone has went down this road... so I better ask first. Phase noise wise what would be the best OCXO's that we could find around, taken from equipments, or ebay etc. I have in mind essentially the HP ones. the PIEZZO ISOTEMP, CMAK, Vecton(harder to find) and some of the small wenzels, BLIBEY, OACs and a few more. Not necessarily just 10MHz... other freqs are of interest too. Any generic heading info/help? Many Thanks. Luis Cupido. ct1dmk. ___ 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.
