Thanks to a fellow list member I obtained a rev C2 DS1620 temperature sensor
chip and replaced the rev E2 chip on my flat line Thunderbolt board. The
board is now a curvy line board. So the difference is definitely a DS1620
chip difference and not a tbolt firmware difference.
I made
Hi there,
First, let me introduce myself : I’m a 28-years-old electronic engineer working
for a press magazine as Hardware Test Chief Editor. I’m from France; so,
please forget about my bad English. Since years, I’m obsessed with precision
measurements and I spend the last 15 months finding
I would HIGHLY recommend that you buy a GPS disciplined oscillator. You can
pick up a Trimble Thunderbolt on Ebay for less than $150 from the Chinese
sellers (or $300 ready to go with power supply and antenna which you can buy
for a lot less). The frequency output of these can rival that of
I wrote some code to process my holdover logs from the Thunderbolt with the
newer flat line rev E2 temperature sensor.
The data is a lot more consistent than I thought it was. I am seeing around
9.5 uS +- 0.5 uS of drift in the PPS output per degree C across 4 different
24 hour runs.
Hi Samuel and all,
Welcome to the group.
I also have a 53131A and would welcome any way to enhance or upgrade the
performance of this instrument. Please count me in on clone option parts.
As can be seen from the picure of the 3Ghz option there is nothing special
in its construction. Just four
Max Skop wrote:
Hi Samuel and all,
Welcome to the group.
I also have a 53131A and would welcome any way to enhance or upgrade the
performance of this instrument. Please count me in on clone option parts.
As can be seen from the picure of the 3Ghz option there is nothing special
in its
