Topcon GR-3 User Manual

GR-3 Receiver Setup and Survey
GR-3 Operator’s Manual
4-2
To set up the Base receiver (Figure 4-1):
1. Install a tripod over a known control point.
2. Secure the universal tribrach to the tripod. Place the tribrach
adapter (either universal or precision) on the tribrach and tighten
the screws.
3. Insert the L-plug (horizontal spacer) into the precision tribrach
adapter.
4. Attach the GR-3 receiver (or PG-A1 antenna) to the tribrach
adapter. Attach the desired antenna to the antenna connector.
5. Carefully level the tripod and tighten the screws.
6. If using a GB-500/1000 receiver, attach it to the tripod and
connect it to the PG-A1 antenna using the GPS antenna cable.
7. Attach any other accessories as needed (for example, a backup
power supply).

Topcon GR-3 Specifications

General

Brand	Topcon
Model	GR-3
Category	Receiver
Language	English