Technical data

Position Location
User Entered Position
In an attempt to expedite the surveying process, the GPS Receiver may
be given a position (e.g. entered manually). This user entered position
is used to determine which satellites are currently in view.
This can only occur when the GPS Receiver has acquired its first
satellite, the date and time can then be determined. Utilizing a user
entered position (and stored almanacs of the satellites), the satellites in
view can be calculated.
CAUTION
The accuracy of this user entered position must be to within 50m (or better) otherwise,
the GPS Receiver will reject the value and use its Computed Average Position value.
When in doubt, use the Survey Average.
GPS Timing Receiver Installation and Operation Manual
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