[time-nuts] Tuning a Trimble Thunderbolt
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.
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