[time-nuts] nuts about position

Mark Sims holrum at hotmail.com
Wed Apr 25 15:16:10 UTC 2018


When in was developing Lady Heather's precision survey code I was comparing the calculated positions to those from an Ashtech Z12 dual freq GPS (with the position calculated by OPUS).   Using the same survey grade antenna and a Thunderbolt the results were usually within a meter.   I have not tried it using a more modern GPS receiver.


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