Topcon GR-5 User Manual

P/N 7010-1004
3-1
GR-5 Configuration
Both Base and Rover receivers must be configured according to the
survey method needed.
• In applications where real-time positioning results are required,
the Base receiver provides the correction information needed to
properly calculate the location of the Rover receiver.
A Base station is normally set up over a known point and collects
GPS/GLONASS data from satellites. As the receiver picks up
satellite data, it measures the carrier and code phases to
accurately compute and verify its location. Then, the receiver
transmits this information via a radio to the Rover receiver.
• The Rover receiver applies correction information from the Base
station to its current location to accurately calculate one or more
points.
Rovers are mobile GPS receivers on a survey pole or bipod that
compares the information from the Base station to the data it logs
from satellites and applies correction algorithms to accurately
calculate a new point.
• In applications intended for post-processing, the receivers
typically log code phase and/or carrier phase measurements
separately from common satellites and during the same time
interval. This data is then processed using post-processing
software (for example, Topcon Tools).
When configuring receivers for RTK surveying, use the following
checklist to ensure the receivers are properly set up.
 Perform pre-survey functions as described in Chapter 2.
 Configure one receiver as an RTK Base station and the other
receiver as an RTK Rover. See “Configuring the Receiver Using
PC-CDU” on page 3-31.
 Configure the communication data link for transmitting and
receiving corrections See “Modem Configuration” on page 3-4.

Topcon GR-5 Specifications

General

Brand	Topcon
Model	GR-5
Category	Receiver
Language	English