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Cedar Rapids, Iowa | No.
A base station has to know its location in order to determine the time delay of the signals from the satellites. Finding that location is almost always done by letting the base run as an autonomous receiver for some length of time, and then averaging the positions.
Permanent base stations should be surveyed in over a long period of time (1-2 days) in order to get a good average location. This becomes important when you have two or more base stations because the rover can then switch bases and see very little position shift between the solutions.
When you have a base on a tripod, you don't have 24 hours to let it survey in. You want it to do a quick survey (1-2 minutes) and start generating correction data so you can get to work. This will give you excellent accuracy for as long as the base is running. When you reboot the base, it does another quick survey which will result in a different surveyed location. The difference will likely be somewhere between a few inches to a few feet. Any position data you saved prior to the base rebooting will now be off by that amount. | |
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intellislope and satellite time question
