Topcon GR-5 - Installing Topcon Software

Surveying
Topcon GR-5 Quick Start Guide
38
Step 3: Measure Antenna Height (for Base
and Rover)
1. Measure the antenna height above the control point
or marker, either the slant height or the vertical
height. You may either measure the vertical height
to the Antenna Reference Point (ARP) located at
the bottom of the GR-5, or measure the slant height
Lock
GR-5 Recevier
5/8 inch Screw
Quick Disconnect (Optional)