[time-nuts] New tide gauge uses GPS signals to measure sea level change

Hal Murray hmurray at megapathdsl.net
Wed May 28 17:32:33 EDT 2014


tholmes at woh.rr.com said:
> I'm not sure my Z3801 or any of my navigation receivers have the necessary
> resolution to see even 10 mm.

In normal operation (post survey), a Z3801A "knows" the location and uses 
that to work out a better time and/or the time with fewer satellites.  So you 
won't be getting any new location data.

It might be interesting to set one up in a loop to do a survey, grab the 
location, then repeat.  After a day or week, you could average the locations 
and/or compute std dev and such.


-- 
These are my opinions.  I hate spam.






More information about the time-nuts mailing list