> you have the following options: > > - HP (Agilent) E5052A/B or R&S FSUP Signal Source Analyzer (works for a > single DUT, though limited to 1 Hz offset, normally useful for 10 Hz up > to 40 MHz). > - Compare two identical DUT's with a HP 3048A or similar PN test system > and subtract 3 dB, assuming that the PN characteristic of both DUT's is > identical. > - Compare 3 similar DUT's with a HP 3048A and calculate the individual > PN using the three cornerd hat method. > - set up a cross correlation PN measurement system similar to the E5052A > and have fun. You will however need two - as good as possible, but > preferaby not more than 10 dB worse than what you want to measure - > VCXO's like HP 10811A's... > - you may build your own HP 3048A alike system, but be prepared to > invest serious money and time, and much more time than you thought in > the beginning... (if that is what you're after, you'll have the most fun > you can). > - find someone who has one of the above and talk him into measuring yours.
Also, it looks like you (Mark) are only about an hour from Cerritos, where the MUD ( http://www.microwaveupdate.org ) conference will be held at the end of October. This could be one option for you. As part of the $35 registration cost, you get access to a test lab set up to help attendees measure noise figure, PN, etc. on any homebrew or commercial gear they wish to bring. Microwave communication nuts are especially concerned with reference-oscillator PN because they end up multiplying it by 1000x or more. Last year Agilent provided an E5052B, and I imagine they will this year, too. If not I'll probably bring my prototype cross-correlation analyzer, so one way or another you would be able to get some PN readings at the conference. -- john, KE5FX _______________________________________________ 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.