how exact is the time resolution by using GPS time from the USRP?

[mathlan86]

Hello

I´m using a USRP 2932.

I need the time from the GPS signal. I need the Time exactly as possible.

How exact is the time that i can get from GPS with the USRP? 10e-8 s, 10e-9 s, ... or better

When I use the function "niUSRP timestamp to LV timestamp",  i see the actual time and date.

The resolution is 1x10e-8s. GPS Time accuracy should be at 1x10e-10s.

Best,

Mathias

[Jon_15]

Hey,

check out this topic:

Time accuracy of GPS timestamp - NI Discussion Forums
https://forums.ni.com/t5/LabVIEW/Time-accuracy-of-GPS-timestamp/td-p/3230022

The difference between GPS and the internal OCXO Clock is going towars 0.01 ppb accoring to the ni Homepage Overview:

NI USRP-2932 - National Instruments
https://www.ni.com/en-us/support/model.usrp-2932.html

Regards