> For what it's worth, the Wenzel 5 and 10 MHz ULN oscillators are > generally considered to be about the lowest noise oscillators > commercially available. They really shine in their noise floor. > There's actually (at least) one 5MHz oscillator with a better 1Hz offset > spec -- the Oscilloquartz 8607-08 BVA at -130 dBc/Hz, though its noise > floor at about -160 dBc/Hz is nothing like the Wenzel's. > > Here's some data on the Wenzel units from their web site: > > 5 MHz 10 MHz > 1 Hz -120 -105 > 10 Hz -150 -135 > 100 Hz -170 -160 > 1 kHz -176 -173 > 10 kHz -176 -175
John, Good timing; yesterday, John Miles was over here to test some ULN. Here's a Wenzel ULN 5 MHz against a ULN 10 MHz. http://www.leapsecond.com/museum/wenzel-uln/uln5-uln10.gif (these are relative measurements; absolute would be ~ 3 dB better) Also, for those interested, two 8607-08 BVA against each other: http://www.leapsecond.com/museum/osa8607/8607-8607.gif /tvb _______________________________________________ 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.
