Figure 4.4 Measuring Hi (Height Of Instrument) Of Gps Antenna - ashtech Z-Xtreme System Manual

Figure 4.4 Measuring HI (Height of Instrument) of GPS Antenna

Different GPS antennae will have different HI measurement points. For the
Geodetic IV, the HI measurement point is the top of the ground plane.
4. Connect system components
With the remaining system components residing in the field pack, connect all
components as listed below. Some of these connections will already be
made. Check these connections to ensure the connectors are seated prop-
erly. Refer to the previous chapter on how to establish these connections.
GPS antenna ↔ GPS receiver
•
• External GPS receiver power ↔ GPS receiver (optional if using internal battery)
Handheld computer ↔ GPS receiver (optional)
•
5. Power-up system components
This is simply accomplished by pressing the power button on the GPS
receiver. The handheld computer is turned on using the power button on its
keyboard. Check that all components are powered up. The GPS receiver
has a LED to indicate that power has been applied and the receiver is on.
6. Configure GPS receiver to perform a Static survey
By default, the GPS receiver is already configured to perform a static survey.
When turned on, the receiver automatically begins to collect and store data in
30 Post-Process GPS Surveying