This new one from Force 10 seems to fit the bill. Anyone have any experience with these, or know of where I can get a bargain on them? Frederick Corey S/V Orca Duxbury, Massachusetts

We had 10 sandhill cranes flyover Black Rock turnpike today about 1:15pm. This was at the intersection of Stillson and Black Rock Turnpike over Wild Birds Unlimited. They were quite vocal and heading northwest. Chris Petherick Fairfield, Fairfield County Sent from my iPhone

If R is 1 mm, and I is 628 mA, > then H = 10 ampere turns per meter. If mu-relative is 1000, then > B = 4piX10^-7 X 1000 X 10 = 125 mT.

I suppose one can handle this two ways - use a DDS > clocked with the 20 MHz VCXO to generate a 10 MHz signal and phase > compare (at 10 MHz) this with the input 10 MHz to steer the VCXO to lock > with the Rb 10 MHz input as adjusted by the DDS NCO.

-----Original Message----- > From: time-nuts [mailto:time-nuts-bounces@lists.febo.com] On Behalf Of Dave > B via time-nuts > Sent: 10 September 2019 17:40 > To: time-nuts@lists.febo.com > Cc: Dave B > Subject: Re: [time-nuts] 5 Mhz to 10 Mhz and 25 Mhz > > On 10/09/2019 17:00, time-nuts-request@lists.febo.com wrote: >> Re: [time-nuts] 5 Mhz to 10 Mhz and 25

-5:30 3126 Harborview Drive Sat 10-5:00 Gig Harbor, WA 98335 Sun 12-4:00 253-851-3219 Extended hours seasonally www.mostlybooks.com

Double the 10 MHz to 20 MHz.   With another circuit of 74HC390’s divide 10 MHz to 200 KHz.  Then double it twice to 800 KHz with LM 1496 DBM’s.  Apply the two frequencies to a LM 1496 DBM and use a LPF to get the 19.2 MHz.   Hardware complicated?  A bit. 

The 10 MHz CMOS output goes high just > shortly before the 1 PPS. > > What do other GPSDOs do? You can expect anything. Some buffers the PPS from the GPS engine and then make some more or less elaborate 10 MHz training algorithm. Don't expect rising edges to coinside for all of them.

More or less: > > Fire up 5335 with pps from gps / gpsdo and from the PRS-10.

Bob On Jan 2, 2013, at 1:54 PM, Tom Van Baak wrote: > What's the simplest way to generate 16 MHz from 10 MHz? This will be for clocking a microcontroller at 16 MHz given 10 MHz (Cs/Rb/GPSDO).