Topcon GR-3 User Manual

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Topcon GR-3 Specifications

General

Type	GNSS Receiver
GPS	Yes
GLONASS	Yes
SBAS	Yes
L2C	Yes
Positioning Accuracy (RTK) Vertical	15 mm + 1 ppm
Positioning Accuracy (Static) Vertical	5 mm + 0.5 ppm
Frequency Bands	L1, L2
Data Storage	Internal memory
Power	External power

Summary

Preface

Terms and Conditions

User agreement terms for the Topcon GR-3 receiver operation and use.

Manual Conventions

Explains formatting and symbols used throughout the operator's manual.

Chapter 1 Introduction

Principles of Operation

Overview of GNSS systems and basic operating principles for satellite positioning.

GNSS Overview

Details on GPS, GLONASS, and GALILEO satellite positioning systems.

Receiver Overview

Description of the GR-3 receiver's hardware and signal processing.

Getting Acquainted

Introduction to the GR-3 receiver's features and components.

Batteries

Information on the detachable rechargeable batteries for the GR-3 receiver.

GR-3 Receiver

Overview of the GR-3 receiver's design, configurations, and features.

MINTER

Description of the GR-3 receiver's Minimum Interface (MINTER) and its LEDs.

Cables

Details on standard communication and power cables included with the GR-3 package.

Other Accessories

Information on optional accessories like power supply units and tribrach adapters.

Optional Accessories

Details on accessories to extend job reliability and efficiency for the GR-3.

Option Authorization File (OAF)

Explanation of OAF for enabling specific receiver functions and features.

Chapter 2 Pre-survey Preparation

Installing Topcon Software

Instructions for installing Topcon GPS+ software like PC-CDU, Modem-TPS, BTCONF, FLoader.

Installing PC-CDU

Step-by-step guide to install PC-CDU software for receiver configuration.

Installing Modem-TPS

Guide for installing Modem-TPS software for radio modem configuration.

Installing BTCONF

Instructions for installing BTCONF software for Bluetooth module configuration.

Installing FLoader

Guide for installing FLoader firmware loading program.

Installing the Optional SD and SIM Cards

Procedure for installing SD and SIM cards into the GR-3 receiver.

Charging the Batteries

Instructions on how to fully charge the GR-3 receiver's detachable batteries.

Power Management

Using PC-CDU to manage power settings, charging modes, and battery status.

Powering the Receiver

How to power the GR-3 receiver using internal batteries or external sources.

Using the Detachable Batteries

Steps for attaching and detaching the GR-3 receiver's detachable batteries.

Using an Auxiliary Power Source

Connecting the receiver to external batteries for continuous operation.

Turning On/Off the Receiver

Procedure for powering the GR-3 receiver on and off using the power button.

Connecting the Receiver and a Computer

Methods for establishing a connection between the GR-3 receiver and a computer.

Establishing a Wireless Connection

Steps to connect the GR-3 receiver to external devices via Bluetooth.

Establishing an RS232 Cable Connection

Instructions for connecting the GR-3 receiver to a computer via RS232 cable.

Establishing a USB Connection

Instructions for connecting the GR-3 receiver to a computer via USB cable.

Bluetooth Module Configuration

Using BTCONF to configure the GR-3 receiver's Bluetooth module.

Collecting Almanacs and Ephemerides

Procedure for collecting satellite almanac and ephemeris data for the receiver.

Chapter 3 GR-3 Configuration

Configuring the Radio Modem

Using Modem-TPS to configure integrated radio modems in Topcon receivers.

Configuring a Spread Spectrum Radio Modem

Steps to configure the FH915+ Spread Spectrum radio modem for Base and Rover.

Configuring a Spread Spectrum Radio with a GSM Modem

Guide to configure SS radio modem with GSM module for Base and Rover.

Configuring a Digital UHF Radio Modem

Instructions to configure the integrated Digital UHF radio modem.

Configuring a Digital UHF Radio with a GSM Radio Modem

Steps to configure Digital UHF radio with a GSM module.

Configuring a Digital UHF Radio with a CDMA Modem

Guide to configure the internal CDMA modem for the GR-3 receiver.

Setting Up an Account

Procedure to set up an account with a service provider for CDMA modem activation.

Activating the Internal CDMA Modem

Steps to activate the internal CDMA modem after setting up a service account.

Configuring the Receiver

Ways to configure the GR-3 receiver for RTK or post-processing data collection.

MINTER Configuration

Configuring MINTER settings using PC-CDU for data recording and receiver modes.

Chapter 4 GR-3 Receiver Setup and Survey

Receiver Setup

Basic steps for setting up a GPS survey system with Base and Rover receivers.

Step 1: Set up the Receivers

Instructions for setting up the Base and Rover receivers for surveying.

Step 2: Measure Antenna Height

Procedure for accurately measuring the antenna height above the station marker.

Step 3: Collect Data

Instructions on how to start and stop data collection using the receiver.

MINTER Operation

Detailed functions and operations of the GR-3 receiver's MINTER interface.

Static Surveying for Base Stations

Explanation of the static surveying method for Base stations.

Kinematic (Stop & Go) Surveying for Rover Stations

Guide to performing kinematic stop and go surveys with Rover stations.

Real Time Kinematic Surveying

Overview of RTK surveying method using a communication link between Base and Rover.

Chapter 5 Receiver and File Maintenance

Downloading Files to a Computer

Procedure for downloading data files from the receiver for storage or backup.

Downloading Files via Topcon Link

Instructions for downloading receiver files using Topcon Link software.

Downloading Files via PC-CDU

Steps to download receiver files using the PC-CDU software.

Deleting Files from the Receiver’s SD Card

Procedure for deleting files from the receiver's SD card using PC-CDU.

Managing Receiver Memory

Information on receiver log file size and memory usage calculations.

Managing Receiver Options

Overview of receiver options enabled by the Option Authorization File (OAF).

Checking the Receiver’s OAF

How to view the status of receiver options using PC-CDU.

Loading an OAF

Procedure for loading a new Option Authorization File (OAF) onto the receiver.

Clearing the NVRAM

Explanation of NVRAM data and its role in receiver settings and tracking.

Using PC-CDU to Clear the NVRAM

Steps to clear the receiver's NVRAM using the PC-CDU software.

Changing Receiver Modes

Description of receiver modes: Normal, Extended Information, and Sleep Mode.

Entering Extended Information Mode

How to enter Extended Information Mode (EIM) for receiver testing.

Sleep (Off) Mode

Explanation of the Sleep Mode operation and its effect on battery drain.

Loading New Firmware

Instructions for updating the receiver's firmware using FLoader utility.

Loading Receiver and Power Board Firmware

Procedure for loading firmware onto the receiver and power boards.

Loading Bluetooth Module Firmware

Steps to load firmware onto the Bluetooth module using FLoader.

Chapter 6 Troubleshooting

Check This First!

Initial checks to perform before contacting Topcon support for receiver issues.

Troubleshooting Quick List

A categorized list of common receiver and connection problems and solutions.

Powering Problems

Solutions for issues related to the receiver not powering up or battery problems.

Receiver Problems

Common issues like RX/TX LED status, no radio link, and inability to obtain solutions.

Bluetooth Problems

Troubleshooting for BTCONF error messages and connection issues.

Modem-TPS Problems

Solutions for issues when Modem-TPS cannot connect to the receiver.

TX RX LED Blink Pattern on Error Conditions

Interpreting TX RX LED blink patterns for FH915+ and GSM modems.

Obtaining Technical Support

Contact information and procedures for receiving technical support from Topcon.

Appendix A Specifications

Receiver Specifications

General specifications for the GR-3 receiver.

General Details

Physical and environmental specifications for the GR-3 receiver.

GPS Board Details

Technical specifications for the GR-3 receiver's GPS board.

Bluetooth Module Details

General specifications for the integrated Bluetooth wireless technology module.

Internal TPS Spread Spectrum Modem Details

Technical specifications for the internal TPS Spread Spectrum modem.

Digital UHF Modem General Specifications

General specifications for the GR-3 Digital UHF modem.

Digital UHF Transmitter Specifications

Technical specifications for the Digital UHF transmitter.

Digital UHF Receiver Specifications

Technical specifications for the Digital UHF receiver.

Radio (Modem) RF Connector

Details on the modem connector types for UHF and Spread Spectrum.

Power Connector

Specifications for the GR-3 receiver's 5-pin sealed power connector.

Serial C-RS232 Connector

Specifications for the GR-3 receiver's 7-pin serial RS232 connector.

USB Connector

Specifications for the GR-3 receiver's 4-pin USB connector.

Appendix B Safety Warnings

General Warnings

Important safety precautions for using TPS receivers and compliance with RF exposure.

Battery Pack Warnings

Safety warnings related to handling, charging, and disposal of Lithium-Ion batteries.

Usage Warnings

Warnings regarding product handling, care, and authorized service.

Appendix C Regulatory Information

UHF Radio Usage

Information on licensing and optimal usage of UHF radio for RTK communications.

FCC Compliance

Statement of compliance with FCC Part 15 rules for digital devices.

Community of Europe Compliance

Confirmation of compliance with R&TTE and EMC directives from the European Community.

Canadian Emission Labeling Requirements

Information on Canadian regulations for digital apparatus and radio interference.

WEEE Directive

Information for EU-member states regarding product disposal and recycling.

Appendix D Warranty Terms