Hi Any new gear that is self contained for phase noise testing will be above a basement budget (> $10K, some > $100K).
The simple approach is to use a single mixer / preamp and a second oscillator to do the measurement. You run the mixer output into an audio spectrum analyzer (possibly a sound card). Total cost for the setup can be < $100, not including the computer and sound card. Bob > On Apr 23, 2015, at 5:43 AM, Vasco Soares <[email protected]> wrote: > > Thank you all for your reply's! > > It is for personal use, not a business. The budget it is very tight. I guess > I can't find anything less that 2000-3000 euros even a second hand or a > refurbished model. > The main problem is that I'm starting from scratch... > I found http://www.anapico.com/index.php/products/phase-noise-test-systems > and the cheapest model (apph6000-is400) fits my needs (-160 dBc @ 100 Hz it > is low enough) but it is too expensive (an outrageous of 18000 euros!). Their > advantage, as in others, is to be a self contained analyzer with internal > references. > > I don't know the price range of the Holzworth analyzer's but surely they are > affordable compared with the one above. The model HA7402B needs two tunable > LO, which I don't have, so a lot of investment has to be done. > > I can consider any setup as long as the above requirements are fulfilled and > it is an affordable solution otherwise I've to wait for gather enough funds > for this kind of investment. > > Regards, > Vasco Soares > > > > > > ----- Original Message ----- From: "Bob Camp" <[email protected]> > To: "Discussion of precise time and frequency measurement" > <[email protected]> > Sent: Wednesday, April 22, 2015 11:36 PM > Subject: Re: [time-nuts] Signal/Phase noise analyzer > > >> Hi >> >> Is this for a business or for a basement? Basement >> >> Are you looking for new self contained gear or combinations of used gear? > >> Is a cross comparison device ok or do you need a stand alone device? >> >> How low do you need to go how fast? Is -190 dbc/ Hz low enough? Is a 24 hour >> run to long? >> >> Lots of variables…. >> >> Bob >> >>> On Apr 22, 2015, at 10:07 AM, Vasco Soares <[email protected]> >>> wrote: >>> >>> Hi All, >>> >>> >>> >>> I'm searching for the less expensive signal analyzer to perform phase noise >>> measurements on OCXO's. There is no need to go above 400 MHz - 1 GHz. I'm >>> particularly interested on low frequency offset and good close in phase >>> noise specs. Any recommendations? >>> >>> >>> >>> Best regards, >>> >>> Vasco Soares >>> _______________________________________________ >>> 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.
