User's Manual

2 Overview
8 Trimble R7/R8 GPS Receiver User Guide
Trimble R7 GPS Receiver Operation
This chapter introduces the Trimble R7 receiver GPS receiver. This
receiver is designed for GPS surveying applications. The receiver
features one-touch logging for ease of use, and five LEDs that enable
you to monitor the survey in progress and the available battery
capacity.
The Trimble R7 receiver tracks GPS satellites on both the L1 and L2
frequencies to provide precise position data for land survey
applications. The receiver records GPS data on an internal
CompactFlash card and makes all data available through serial or USB
ports.
You can use the Trimble R7 receiver alone by logging data internally, or
as part of the GPS Total Station® system, which logs GPS data from the
receiver to a Trimble controller running the Trimble Survey Controller™
or Trimble Survey Pro™ software.
2.1 Features
The receiver provides the following features:
• Trimble R-track technology, which enables the receiver to track
the L2 Civil signal (L2C)
• Centimeter-accuracy real-time positioning with RTK/OTF data,
and up to 10 Hz position updates
• Submeter-accuracy real-time positioning using pseudorange
corrections
• Adaptive dual-frequency RTK engine
• WAAS/EGNOS capability (Wide Area Augmentation
System/European Geo-Stationary Navigation System)
• Automatic OTF (on-the-fly) initialization while moving
• 1PPS (One Pulse Per Second) output
• Dual event-marker input
• USB port for data transfer