User's Manual

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Table Of Contents

Trimble® R7/R8 GPS Receiver User Guide
Introduction
- Related Information
- Warnings and Cautions
- Technical Assistance
- Your Comments
Trimble R7 GPS Receiver
Overview
- Introduction
- Features
- Use and Care
- COCOM Limits
Setting up the Receiver
- Introduction
- Parts of the Receiver
- Setup Guidelines
- Postprocessed Setup
- PoleMounted Setup
- Backpack Setup
- Other System Components
General Operation
- Introduction
- Button Functions
- LED Behavior
- Starting and Stopping the Receiver
- Logging Data
  - Logging internally
  - Logging to a Trimble controller
- Resetting to Defaults
- Formatting a CompactFlash Card
- Batteries and Power
Configuration
- Introduction
- Configuring the Receiver in Real Time
- Configuring the Receiver Using Application Files
- Application Files
Transferring Data
- Introduction
- Connecting to the Office Computer
- Transferring Data
- Transferring Files Directly from a CompactFlash Card
- Deleting Files in the Receiver
- Supported File Types
Software Utilities
- Introduction
- GPS Configurator Software
  - Installing GPS Configurator
  - Configuring the Trimble R7 receiver
- WinFlash Software
Specifications
- Introduction
- Physical Specifications
- Positioning Specifications
- Technical Specifications
Default Settings
- Introduction
- Default Settings
- Resetting to Factory Defaults
- Examples
Cables and Connectors
- Introduction
- Port 1, 2, and 3 Connectors
- Power/serial data cable
- Event Marker/1PPS Cable
- GPS Antennas and Cables
Event Marker Input and 1PPS Output
- Introduction
- Event Marker Input
  - Enabling and configuring event marker input
- 1PPS Output
Trimble R8 GPS Receiver
Overview
- Introduction
- Features
- Use and Care
- COCOM Limits
Setting up the Receiver
- Introduction
- Parts of the Receiver
  - Front panel
  - Lower housing
- Setup Guidelines
- PoleMounted Setup
- Other System Components
  - Radios
  - Cellular modems and external radios
General Operation
- Introduction
- Button Functions
- LED Behavior
  - LED flash patterns
- Starting and Stopping the Receiver
- Logging Data
  - Logging internally
  - Logging to a Trimble controller
- Resetting to Defaults
- Batteries and Power
Configuration
- Introduction
- Configuring the Receiver in Real Time
- Configuring the Receiver Using Application Files
- Application Files
Software Utilities
- Introduction
- GPS Configurator Software
  - Installing GPS Configurator
  - Configuring the Trimble R8 receiver
- WinFlash Software
Specifications
- Introduction
- Physical Specifications
- Positioning Specifications
- Technical Specifications
Default Settings
- Introduction
- Default Settings
- Resetting to Factory Defaults
  - Default behavior
  - Power up settings
Cables and Connectors
- Introduction
- Port 1 and 2 Connectors
- Power/Serial Data Cables
Appendixes Trimble R7 / Trimble R8
NMEA-0183 Output
- Introduction
- NMEA-0183 Outputs
- Common Message Elements
  - Message values
- NMEA Messages
RTCM Output
- RTCM Output
- Message Scheduling
Troubleshooting
Index

Trimble R7/R8 GPS Receiver User Guide 187

NMEA-0183 Output A

Trimble R7 and R8

ZDA UTC Day, Month, And Year, and Local Time Zone Offset

An example of the ZDA message string is shown below. Table A.16

describes the message fields.

$GPZDA,172809,12,07,1996,00,00*45

Fields 5 and 6 together yield the total offset. For example, if field 5 is

–5 and field 6 is +15, local time is 5 hours and 15 minutes earlier than

GMT.

Table A.16 ZDA message fields

Field Meaning

1UTC

2 Day, ranging between 01 and 31

3 Month, ranging between 01 and 12

4 Year

5 Local time zone offset from GMT, ranging from 00 to ±13 hours

6 Local time zone offset from GMT, ranging from 00 to 59 minutes