Re: [time-nuts] Lucent RFTG-u REF0-REF1 cable

Yes, the cable is pretty easy, basically DB15 pin 1 to 15; 2-14; 3-13; 4-12; 5-11; 6-10; 7-9 and 8 to 8 followed by 9-7; 10-6; 11-5; 12-4; 13-3; 14-2; 15-1. If you do a search for "Lucent RFTG-U" and look around on time-nuts you will find it laid-out in a little more detail. I was just

[time-nuts] Lucent RFTG-u REF0-REF1 cable

The 15 pin cable is wired reversed from a straight through cable: 1 -> 15, 2->14, ... 15->1. http://www.prc68.com/I/KS-24361.html I think ko4bb.com also has info on these. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Discussion of precise time and frequency measurement

Longitude by Wire by Richard Stachurski : from Professional Surveyor Magazine, November 2003. http://fgg-web.fgg.uni-lj.si/~/mkuhar/pouk/SG/Seminar/Astronomska_navigacija/Astronomska_navigacija_zgodovina/Professional_Surveyor_Magazine-Longitude_By_Wire_The_American_Method-Nov03.pdf Best, 73,

Re: [time-nuts] Lucent RFTG-u REF0-REF1 cable

I need to make one, is there a schematic of the interface available? Dave Thompson > On Nov 13, 2017, at 22:50, Jerry Hancock wrote: > > Anyone have a spare cable for the Lucent setup? I guess I can make one with > some DB15 connectors but trying to skip the effort. > >

[time-nuts] Lucent RFTG-u REF0-REF1 cable

Anyone have a spare cable for the Lucent setup? I guess I can make one with some DB15 connectors but trying to skip the effort. Thanks Jerry ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

[time-nuts] Trimble SVeeSix-CM3 with Lady Heather?

The latest version of Heather does support the SV6 in both TSIP and TAIP mode. If you are running Linux, etc or can compile the current Windows version I can send you the latest source code to compile. ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] Newbie to Time Nuts; Seeking wisdom, re Hydrogen MASER applications

The TV series "How the States Got Their Shapes" mentions boundary errors occasionally. There were some magnificent errors that took years to resolve. In most cases today, the boundary is what it is and the fact that it's a few inches or feet in error is usually ignored. Many boundaries are a

Re: [time-nuts] Trimble SVeeSix-CM3 with Lady Heather?

I've just got the Motorola board talking to Heather - and with much more data on screen: https://twitter.com/philpem/status/930215452147617793 (Turns out my receiver was an M12+T, not a UT+ -- the UT+ is 5V, this is 3V) I still have no idea why the SVeeSix-CM3 wouldn't cooperate with Heather (I

[time-nuts] Trimble SVeeSix-CM3 with Lady Heather?

Hi all, Has anyone managed to get a Trimble SVeeSix (in TSIP mode) talking to Lady Heather? I hooked it all up, TSIPChat reported the unit had a position fix, but Lady Heather is utterly refusing to show any of the graphs. I was hoping for a satellite position chart with trails so I could get

Re: [time-nuts] Regarding Wenzel PLO's

On Mon, Nov 13, 2017 at 12:57 PM, Ulf Kylenfall via time-nuts < time-nuts@febo.com> wrote: > > Know then that the Wenzel PLO's are sensitive to the input Power levelof > the external reference. The datasheet says one thingbut the phase noise > of the locked output signal won't look very good at

[time-nuts] Regarding Wenzel PLO's

We have a couple of them at my work. 5 MHz in, 100 MHz out. The Kvartz HM75-01Hydrogene masers has a 100 MHz output but thatport is full of spurs, so we use Wenzel PLO's thatprovides a Clean 100 MHz signal from the 5 MHzoutput from the maser. Know then that the Wenzel PLO's are sensitive to

Re: [time-nuts] Discussion of precise time and frequency measurement

On Mon, Nov 13, 2017 at 12:32 PM, Gregory Beat wrote: > As a second’s error in time will be about a nautical mile in US > latitudes, I wonder if anyone has measured with GPS, how good the original > surveys were? > > Sent from iPad Air >

Re: [time-nuts] Discussion of precise time and frequency measurement

On 11/13/17 9:32 AM, Gregory Beat wrote: I grew up east of the Iowa/Missouri border, so this boundary dispute was well-known ... and occurred at same time Joseph Smith (Mormons) was at Nauvoo, IL (1839-1844). In 2006, the Iowa-Missouri border was investigated with GPS, as much an archeology

Re: [time-nuts] Discussion of precise time and frequency measurement

Hi, On 11/13/2017 06:32 PM, Gregory Beat wrote: I grew up east of the Iowa/Missouri border, so this boundary dispute was well-known ... and occurred at same time Joseph Smith (Mormons) was at Nauvoo, IL (1839-1844). In 2006, the Iowa-Missouri border was investigated with GPS, as much an

Re: [time-nuts] Discussion of precise time and frequency measurement

I grew up east of the Iowa/Missouri border, so this boundary dispute was well-known ... and occurred at same time Joseph Smith (Mormons) was at Nauvoo, IL (1839-1844). In 2006, the Iowa-Missouri border was investigated with GPS, as much an archeology project as locating the historic Sullivan &

Re: [time-nuts] Wenzel VHF PLO Oscillators Off Frequency

Hi If the device pulls > 50 ppm at 80 MHz, it’s a wide range VCXO with a heater on it :) That is way more than you can pull a proper (low ADEV) OCXO. Bob > On Nov 13, 2017, at 5:04 AM, Mark Goldberg wrote: > > On Sun, Nov 12, 2017 at 7:02 PM, Mark Goldberg

Re: [time-nuts] GPS III

Hi, On 11/13/2017 02:23 PM, jimlux wrote: On 11/12/17 10:22 PM, Magnus Danielson wrote: Hi Don, Hardly. As long as you do GPS L1 C/A code only, chanses you get any useful improvement isn't all that great. SBAS may help you some thought. the new L1C code plus increase in radiated power

Re: [time-nuts] Wenzel VHF PLO Oscillators Off Frequency

On Sun, Nov 12, 2017 at 7:02 PM, Mark Goldberg wrote: > > On Sun, Nov 12, 2017 at 6:38 PM, John Miles wrote: > >> >> Most of the 100 and 200 MHz bricks I've seen work with either 5 or 10 MHz >> . I don't know if I've seen any 80 MHz units that do. All

Re: [time-nuts] GPS III

Hi There are papers from ION and other places detailing testing on the new(er) clocks. They do have quite good ADEV performance. If they start showing up on eBay, expect a bidding war …. The most useful thing for an L1 user is getting the added bits into the datastream for the epoch. That

Re: [time-nuts] GPS III

On 11/12/17 10:22 PM, Magnus Danielson wrote: Hi Don, Hardly. As long as you do GPS L1 C/A code only, chanses you get any useful improvement isn't all that great. SBAS may help you some thought. the new L1C code plus increase in radiated power might help

Re: [time-nuts] Newbie to Time Nuts; Seeking wisdom, re Hydrogen MASER applications

> Le 13 nov. 2017 à 12:12, Hal Murray a écrit : > > > michael.c...@sfr.fr said: prior to my senior project most geodetic surveyors used a Wooden boxed, marine chronometer, to get sub second UT1 time, or back then, GMT > >>> How did you get the data out of

Re: [time-nuts] Newbie to Time Nuts; Seeking wisdom, re Hydrogen MASER applications

michael.c...@sfr.fr said: >>> prior to my senior project most geodetic surveyors used a Wooden boxed, >>> marine chronometer, to get sub second UT1 time, or back then, GMT >> How did you get the data out of the wooden box? > I have a couple of marine chronometers that have electrical

Re: [time-nuts] Newbie to Time Nuts; Seeking wisdom, re Hydrogen MASER applications

> Le 13 nov. 2017 à 01:29, Hal Murray a écrit : > > > apollo...@gmail.com said: >> prior to my senior project most geodetic surveyors used a Wooden boxed, >> marine chronometer, to get sub second UT1 time, or back then, GMT > > How did you get the data out of the