Innovative Network RTK Receiver
Chapter
Ⅶ
Static Measurement
GPS positioning measurement by installed three (or more) GNSS receivers to perform simultaneous observation
and determine the relative position between the stations.
In this chapter, we are going to introduce how to do Static measurement with S680N receiver.
7.1. Antenna Height Measuring
After fixed the instrument, user should measure antenna height at the beginning and the end of every period of time
to ensure the accuracy ―mm‖ level. We usually measure from the center point on the ground to the center
waterproof loop of antenna. That is an inclined height. Please refer to the following figure.
We use a formula to calculate antenna height.
―h‖ is the inclined height that measure from point on the ground to the measuring plate edge.
R
0
is the distance from middle of antenna to the edge of measuring plate.
h
0
is the distance from antenna phase center to the bottom of receiver (measuring plate).
H is the calculation result. We usually measure antenna height twice and adopt the average.
Attention:
We input the inclined height as the antenna height, which is the inclined distance from point on the
ground to the waterproof loop of antenna.
Measuring plate
h
