[time-nuts] Tuning a Trimble Thunderbolt

Mark Sims holrum at hotmail.com
Wed Apr 22 11:44:09 EDT 2015

On a Thunderbolt,  you can only manually enter your position with using single-precision floating point numbers... not really accurate enough for a time-nut.   When Lady Heather does a precision survey,  it stores the high-prescision results of the 48-hour survey by doing repeated single-point survey commands until one just happens to be within one foot of the desired position.  Quite a kludge,  but we are time-nuts.
Also,  the Thunderbolt does not have a user-controllable Kalman filter setting,  so that option is grayed out.

You can let the GPS receiver do a self-survey but you can also enter the location that you determined by other means. 		 	   		  

More information about the time-nuts mailing list