Hi I checked a few newer RPD-1's (actually MPD-1's, but I believe they are the same thing). The two ones I have here from who knows where have about 20% more output (2.4 V p-p) than a typical unit (2.0 V p-p).
Bob On Mar 3, 2010, at 10:56 PM, Bruce Griffiths wrote: > Whilst your corrected measurements for the 10534 and 10514 are now within > about 10% of those found by NIST for one of their mixers, the discrepancy > with Minicircuits estimates for the RPD-1s is somewhat larger but their phase > detector gain specs seem incompatible with their max output specs. > > The noise of their phase detector output preamp is surprisingly high (maybe > this is relatively unimportant as they use the cross power spectrum technique > to measure phase noise?? ), even my crude single NJFET input stage > preamplifier breadboard is about 3dB quieter. > > Bruce > > Bob Camp wrote: >> Hi >> >> There was a factor of two "oops" in the math. All the numbers are 2X reality. >> >> Bob >> >> >> On Feb 28, 2010, at 10:58 PM, Bruce Griffiths wrote: >> >> > > > > _______________________________________________ > 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.
