Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread David Bengtson
That's good news. It would be good to have a single reference for noise correlation. Dave On Tue, Aug 15, 2017 at 7:04 AM wrote: > Good Morning all , > > yes , it became non trivial but Enrico agreed to take over the old chapter > 2. He thinks I do not use IEEE norm

Re: [time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Ed Palmer
Chris, Are you suggesting reusing the entire cable? I wasn't suggesting that. The cable is over a meter long! Even if the wiring was correct, which it isn't, I don't know if you could pull enough power through those 28 guage wires even though they have multiple leads in parallel. Either

Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread Dr. Ulrich L. Rohde via time-nuts
Yes, and there is a lot of useful material in place including CMOS and related new topics and update on numerical controlled oscillators . Thanks, Ulrich Sent from my iPhone > On Aug 18, 2017, at 2:58 PM, David Bengtson wrote: > > That's good news. It would be good

Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread KA2WEU--- via time-nuts
well,that is a good question. Knowing the publishing industry a yea after submission of the manuscript , so end of 2018 if we pull our act together ... In a message dated 8/18/2017 6:31:37 P.M. Eastern Daylight Time, wb4...@wb4gcs.org writes: When will it be available?? Jim

[time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Mark Sims
The Mark II (groan)... changed power connector to a 2.1mm barrel jack, added a 15uF or so filter cap, added a PPS LED, added a separate ground test point, added series damping resistors for the ACMOS and FXO outputs (can be omitted to isolate these signals from the cable),

Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread Jim Sanford
When will it be available?? Jim wb4...@amsat.org On 8/18/2017 4:17 PM, Dr. Ulrich L. Rohde via time-nuts wrote: Yes, and there is a lot of useful material in place including CMOS and related new topics and update on numerical controlled oscillators . Thanks, Ulrich Sent from my iPhone

Re: [time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Christoph Kopetzky
Hello all, here is the connection schematics from symmetricoms designer manual for the X72. So you see, that there is no need for an25 pin connector on the boards side :) If someone wants to download the X72 designer guide here it is:

[time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Mark Sims
Image of the first cut of the X72 interface board attached... This board can be used stand-alone or connected to another soon-to-be board with RS-232, 4xBNC, and 2.1mm power connectors. Hopefully the second board will also be able to connect to a