> They have their own cross-correlation system; it's not highly automated but > claims -190 dBc/Hz capability: > http://www.wenzel.com/pdffiles1/PNTS%201000/BP-1000-CC.pdf
Yes, this is equivalent to the "dual HP 3048A" technique. An inelegant weapon from a less-civilized age.... but still, you really can't beat a pair of cross-correlated quadrature PLLs when you absolutely have to achieve the lowest measurement floor possible. Dead-simple block diagram, no digital noise or artifacts to worry about.... but a LOT of work to set up, calibrate and use. -- john, KE5FX www.miles.io _______________________________________________ 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.
