Re: [time-nuts] Furuno GT-87

2018-03-18 Thread Lars Walenius
Från: time-nuts <time-nuts-boun...@febo.com> för Mark Sims <hol...@hotmail.com> Skickat: Sunday, March 18, 2018 1:43:03 AM Till: time-nuts@febo.com Ämne: [time-nuts] Furuno GT-87 The TICC reference is a HP-5071A cesium beam oscillator with high performance t

[time-nuts] Furuno GT-87

2018-03-18 Thread Mark Sims
The TICC reference is a HP-5071A cesium beam oscillator with high performance tube. The GT-87 is connected to the TICC channel B input. The TICC is running in timestamp mode. The orange plot is the Time Interval Error of the 1PPS signal... the difference between 1 second and the measured

Re: [time-nuts] Furuno GT-87

2018-03-17 Thread Lars Walenius
regards Lars Från: time-nuts <time-nuts-boun...@febo.com> för Mark Sims <hol...@hotmail.com> Skickat: Friday, March 16, 2018 1:14:25 AM Till: time-nuts@febo.com Ämne: [time-nuts] Furuno GT-87 Bob Darlington shipped me a GT-8736 to test. It is a sma

Re: [time-nuts] Furuno GT-87

2018-03-16 Thread Bob kb8tq
Hi I wonder if they will ever get around to dropping the “Galileo with firmware update” statements from *all* there spec sheets for the GT-87 and Opus-7 devices…… There has always been the basic issue of *how* an end user would be able to get such an update. Furuno does not seem to have a

[time-nuts] Furuno GT-87

2018-03-16 Thread Mark Sims
I re-confgured the GT-87 to just use GPS satellites (the posted data had GPS, SBAS, and GLONASS enabled). The 1PPS span was mostly +/- 2.5 ns, with a few excursions to the +/- 3.5 ns range. I'll try GLONASS only next. I looks like Furuno is not going to add Galileo support to the GT-87