[time-nuts] Symmetricom X72 and Lady Heather results

I'm in the process of adding support to Lady Heather for the Symmetricom X72 (and SA22) rubidium oscillators. I have a most of the functionality working. The X72 has a "health" message that dumps a couple dozen values. The values are labeled with some rather cryptic names that give some hint

Re: [time-nuts] Trimble Thunderbolt no longer determines the correct date

Interesting. What about NTPD implementations, when using a TB as the reference time source? Does that handle the week count roll over as well? If that was added, from what version? I suspect I may have some updating to do! I use a TB as a frequency ref' and local NTP/NTPD server reference.

Re: [time-nuts] Trimble Thunderbolt no longer determines the correct date

On Thu, 27 Jul 2017 19:03:35 -0700 "Tom Van Baak" wrote: > Yes -- paragraph 30.3.3.1.1.1 in www.gps.gov/technical/icwg/IS-GPS-200D.pdf > describes a 13-bit extended week number. > > No -- because this is part of the new CNAV format and existing GPS SV do not > transmit

Re: [time-nuts] Trimble Thunderbolt no longer determines the correct date

> Le 28 juil. 2017 à 17:36, Dave B via time-nuts a écrit : > > Interesting. > > What about NTPD implementations, when using a TB as the reference time > source? Does that handle the week count roll over as well? If that was > added, from what version? Which driver are

Re: [time-nuts] Machining some aluminum help!

Yo cdel...@juno.com! On Fri, 28 Jul 2017 12:46:30 -0700 wrote: > After mounting the tap in the drill > press and putting a dab of Crisco on the tap I was able to tap each > hole to a depth of 7/16" as fast as I could turn the handwheel! Cool! I suggest you get some real

Re: [time-nuts] Trimble Thunderbolt no longer determines the correct date

It appears there is no command to set the current time in the Thunderbolt. Too bad. I have some very old Garmin OEMs (GPS35) that work fine as long as I set the time and date to be close. I just had to do a RAM reset ( $PGRMI,,,C ) on one which had gotten corrupted and would not

[time-nuts] Machining some aluminum help!

Well I did some research and found my new best friend! If you remember I needed: "I have a square aluminum tube 5" X 5" with a .25" wall it's 8 1/2" long. I need 20 holes in each end tapped for 4/40 and 1/2" deep." This for a Rubidium standard I am working on. I found all about self forming

Re: [time-nuts] Trimble Thunderbolt no longer determines the correct date

Forgive my naivete, but if this is something as simple as the t'bolt adding a 10 bit number to a base date, could not the base date be changed in the PROM? (Presuming one can get to it, etc) Though I suspect that might not be all that simple of course. And I'm not taking mine apart to look. :)

Re: [time-nuts] Machining some aluminum help!

Good even for mild steel too. Best is your good advice to use the drill press to keep the tap aligned. softer aluminum alloys are very "sticky" and demand backing off a turn for almost every turn forward for cutting taps to break the chip. I've found that the 6/32 tap is the most easily

Re: [time-nuts] A look inside the DS3231

On Thu, Jul 27, 2017, at 09:31 PM, Pete Stephenson wrote: [snip] > Anyway, the photos are available at http://imgur.com/a/0zudj -- I will > add more photos from the petrographic microscope tomorrow. I focused > mainly on the markings on the die that indicated it was, in fact, a > Maxim chip but if

Re: [time-nuts] Machining some aluminum help!

Nice! Do you mind posting some photos? Thanks. Edésio On Fri, Jul 28, 2017 at 12:46:30PM -0700, cdel...@juno.com wrote: > Well I did some research and found my new best friend! > > If you remember I needed: "I have a square aluminum tube 5" X 5" with a > .25" wall it's 8 1/2" long. > > I need