As a suggestion I collaborate with a Canadian ham some 5 years ago using a DDS as a BFO for the HP 3586. Those details were shared on time-nuts if they are still in the archives.That worked really well. I recall he was a VE3??? The 3586 had 2 crystals for the BFO while the entire rest of the system was locked to a single reference. Adding the DDS really reduced the BFO behaviors that we typical hams wouldn't really notice. It also sound very clean. Regards Paul WB8TSL
On Fri, Sep 14, 2018 at 4:26 PM, Richard (Rick) Karlquist < [email protected]> wrote: > The AC series is really quite good on phase noise; I used it in > the 5071A at 80 MHz. > > Rick N6RK > > On 9/14/2018 12:55 PM, Dana Whitlow wrote: > >> Frequency dividers can be pretty low noise, if you choose the right class >> of logic. I remember that >> at one time in the distant past, LSTTL was considered king. Unfortunately >> I've been out of touch >> with frequency dividers long enough to be ignorant of what works well >> today. >> >> i'd suggest trying something with either HC-series or AC-series CMOS, >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
