Hi Without seeing the circuit involved it’s a bit tough to guess all of the possible things that might be happening. One branch leads off to things like the circuit it’s self oscillating and creating the spur. Sub branches involve oscillation in a regulator at low frequency vs RF oscillation somewhere else. Another branch heads in the direction of a loose cable running around the shop with a bunch of 10 MHz on it. There are many branches ….
Bob > On Jan 18, 2017, at 11:13 AM, Anders Wallin <anders.e.e.wal...@gmail.com> > wrote: > > I'm seeing +20-30 dBc/Hz of excess AM/PN, as well as a strong 1.5 Hz spur > created by frequency doubling from 5 MHz to 10 MHz. > https://goo.gl/photos/GFx9tQoxrSmyzUQo8 > The input amplitude to the doubler should be just above the recommended 11 > dBm. > What's going on?? > > thanks! > Anders > _______________________________________________ > 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. _______________________________________________ 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.
