Hi-Target V90 Plus, Getting Started

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Basic Operation
2.4 Static data collecting
V90 Plus GNSS Receiver can collect static data. relative operations are as below.
1. Set up receiver on a control point, centering and leveling strictly.
2. Measure the height of receiver for three times, on condition that the difference of each measuring
is less than 3mm and the final height of the receiver should be the average height. Below is the
schematic.
Notice:
1. Instrument height should be measured from control point to the upper of measurement bench
marker.
2. The height of phase center is 0.1018 meter.
3. The measurement bench marker radius is 0.130 meter.
Below is the schematic.
Radius=13mm
Measurement
bench marker
Phase conter=101.8mm
Measurement Bench Marker
Slant height---Measure from control point
to upper measurement bench marker