[time-nuts] Thunderbolt temperature spikes
holrum at hotmail.com
Mon Jul 14 17:26:51 EDT 2008
I have both a red-box unit with the single input power supply (internally it has a AT&T DC-DC converter brick and lots of filtering stuff) and two of the three-supply units. All of them show the same temperature glitches. I have had one running off of a Tektronix PS-503A linear lab supply and one running off the TAPR supply. I have run the red-box one off of batteries. All show the glitches. I'm fairly certain that it is not power related. I also think the decay of the glitch is due to some kind of software filtering of the A/D readings.
Also does anybody out there have a ThunderBolt-E? I have added "E-bolt" support to my programs that I would like somebody to test. The major E-bolt difference seems to be a 12 channel receiver .vs. the 8 channel one in the older ThunderBolts. Also, the E-bolt does not supply per-satellite clock bias error estimates and has some different version and receiver health status messages.
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