Re: [time-nuts] Trimble Thunderbolt error

2016-02-15 Thread Bob Camp
Hi …. also…. If it is a rollover bug, does it come back when the unit is power cycled or is there some magic in a eprom that locks it to the correct era? (all of mine seem to be past FW 3.00) Bob > On Feb 15, 2016, at 11:57 AM, Nigel Vander Houwen > wrote: > > Luc, > > Do you have a refe

Re: [time-nuts] Trimble Thunderbolt error

2016-02-15 Thread Nigel Vander Houwen
Luc, Do you have a reference for this? Nigel > On Feb 15, 2016, at 01:22, Luc Gaudin wrote: > > Hello, > > The issue was known on the Thunderbold for the older firmware version up to > firmware v3.00. > The product will not report the correct extended GPS week number after the > Feb,13th 2

[time-nuts] Trimble Resolution-T 52664-35

2016-02-15 Thread Skip Withrow
Hello Time-Nuts, I just had a learning experience with the Trimble Resolution-T, so I thought I would document it here and perhaps save time-nuts some time in the future. RDR Electronics has sold a number of telecom surplus Resolution-T units (p/n- 52664-35) and we recently had a customer that sa

Re: [time-nuts] LIGO detects gravitational waves

2016-02-15 Thread Attila Kinali
On Mon, 15 Feb 2016 08:23:19 +0100 Magnus Danielson wrote: > I was thinking the same thing, the circulated energy isn't all that > great and each arm is feed with 10 W (it's a 20 W laser split in two). The arms are fed with only 10W, but the circulating power is actually 100kW. The arms are Fab

Re: [time-nuts] Trimble Thunderbolt error

2016-02-15 Thread Achim Vollhardt
Dear all, I can confirm total loss of GPS constellation here on Feb 14th, going from 7 to 4 sats on 00:14:45 UTC going to nil on 00:16:40 UTC intermittent single sat tracking in between back to 7 sats shortly after 02:00:00 UTC I typically receive here between 5-8 sats with my Thunderbolt wit

Re: [time-nuts] Trimble Thunderbolt error

2016-02-15 Thread Achim Vollhardt
I should add that I saw a similar disturbance of the force on my Shera-type GPSDO. Cannot remember what GPS rx is installed but likely some Jupiter-T model. Cheers, Achim On 15.02.2016 08:08, Achim Vollhardt wrote: > Dear all, > > I can confirm total loss of GPS constellation here on Feb 14th, >

Re: [time-nuts] Trimble Thunderbolt error

2016-02-15 Thread Luc Gaudin
Hello, The issue was known on the Thunderbold for the older firmware version up to firmware v3.00. The product will not report the correct extended GPS week number after the Feb,13th 2016. After the rollover to week #860, the thunderbolt will not make position for 2 hours, because the Ephemeri

Re: [time-nuts] LIGO detects gravitational waves

2016-02-15 Thread Bill Byrom
See the main paper in Physical Review Letters: *Observation of Gravitational Waves from a Binary Black Hole Merger* http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.116.061102 In figure 3 on page 4 you see a simplified diagram of the interferometer setup. The text at the end of page 3 describes

Re: [time-nuts] HP Reliability

2016-02-15 Thread Attila Kinali
Moin, Taking this off-list as this is getting far too OT. On Sun, 14 Feb 2016 14:20:52 -0500 "William H. Fite" wrote: > They don't wonder; they know very well. But they're stuck. Consider > oscilloscopes. Why pay for a Keysight or Tectronix or LeCroy or, God > forbid, a Rohde & Schwarz when, fo

Re: [time-nuts] HP Reliability

2016-02-15 Thread Poul-Henning Kamp
In message , Bob Camp writes: >there is a pretty long list of companies that had a good thing >going through the 50’s and 60’s. That "thing" is called "the cold war" where USA poured 10-20% of the entire federal budget into high-tech and consequent innovations. (while claiming to be a

Re: [time-nuts] LIGO detects gravitational waves

2016-02-15 Thread Magnus Danielson
Hi, I was thinking the same thing, the circulated energy isn't all that great and each arm is feed with 10 W (it's a 20 W laser split in two). The fact that it is a vacuum chamber of sizeable volume would make me avoid punching a hole in it for starters. Considerining that they seemed to ha

[time-nuts] SR620

2016-02-15 Thread Joseph Gray
OK, who got the SR620 with the "test error 34"? From looking at the manual, it may simply be user error and the instrument may be just fine. If you are the buyer, I hope that is true and that you got a bargain. I took a stab at buying it, but wasn't willing to chance too much, in case there was som