User Manual
Table Of Contents
- Trimble R6, R7 GPS Receivers / Trimble R8 GNSS Receiver User Guide
- Legal notices
- Safety Information
- Contents
- Introduction
- Trimble R7 GPS Receiver
- Overview
- Setting up the Receiver
- General Operation
- Configuration
- Transferring Data
- Software Utilities
- Specifications
- Default Settings
- Cables and Connectors
- Event Marker Input and 1PPS Output
- Trimble R6 GPS R8 GNS Receivers
- Overview
- Setting up the Receiver
- General Operation
- Configuration
- Software Utilities
- Specifications
- Default Settings
- Cables and Connectors
- Appendixes: Trimble R6/R7 GPS Receivers Trimble R8 GNSS Receiver
- NMEA-0183 Output
- RTCM Output
- Troubleshooting
- Index
C Troubleshooting
142 Trimble R6/R7 GPS and Trimble R8 GNSS Receivers User Guide
Trimble R6 and R7 GPS/R8 GNSS Receiver Operation
C.1 LED conditions
An LED that is flashing quickly indicates a condition that may require attention, and
an unlit LED indicates that no operation is occurring. The following table describes
some LED conditions, possible causes, and how to solve them.
Condition Possible cause Solution
The SV Tracking LED is
lit solidly and the
Logging/Memory LED is
flashing slowly.
The receiver is in Monitor
mode, ready for new
firmware to be loaded or
new options to be added.
Turn off or turn on the receiver.
Load the latest version of the
firmware, which you can download
from www.trimble.com/support
The SV Tracking LED is
not flashing.
The receiver is tracking fewer
than four satellites.
Wait until the SV Tracking LED is
flashing slowly.
The radio antenna cable and
GPS antenna cable are mixed
up.
Make sure that the GPS antenna
cable (with the yellow over-mould) is
connected between the yellow TNC
connector marked GPS and the GPS
antenna.