Ashtech G12 Manuals

Ashtech G12 Manuals

Manuals and User Guides for Ashtech G12. We have 1 Ashtech G12 manual available for free PDF download: Reference Manual

Ashtech G12 Reference Manual

Ashtech G12 Reference Manual (251 pages)

GPS OEM board and sensor

Brand: Ashtech | Category: Accessories | Size: 15.05 MB

Table of Contents

Table of Contents
3
Chapter 1. General Information

15
- Overview
  15
- Functional Description
  16
- Hardware Description
  17
- Power Connections
  19
- Interfaces to External Equipment
  23
- Power Requirements
  24
- Environmental Specifications
  24
- RF Connections
  24
- Radio Interference
  25
- Receiver Options
  25
- G12-L
  28
- G12 Evaluation Kits
  28
- Firmware Upgrades
  29
Chapter 2. Getting Started

33
- Connecting to the G12
  34
  - Power
    34
  - Antenna
    35
- Important Default Parameters
  36
  - Communication Port Setup
    36
  - Data Output Options
    36
- Initial Operating Instructions
  36
Chapter 3. Operation

39
- System Setup
  39
  - Power-Up
    39
- Message Formats
  40
  - G12 Input Messages
    40
- G12 Message Output
  41
- Serial Port Configuration
  41
- Satellite Tracking
  42
- Parameter Settings and Status
  42
  - Saving Parameter Settings
    44
  - Watchdog Timer
    44
  - Position Modes
    44
  - Fixed Altitude Modes
    45
  - Geoid Model
    46
  - Ionospheric Model
    46
  - Magnetic Variation Model
    47
  - Setting Antenna Position
    47
  - NMEA Outputs
    47
  - Raw Data Output (Optional)
    48
- Differential Operation (Optional)
  49
  - General
    49
  - Sources of Error
    51
  - RTCM Messages
    52
  - RTCM 104 Format, Version 2.2
    53
- Photogrammetry / Event Marking (Optional)
  54
  - Time Tagging the Shutter Signal
    55
  - Closed-Loop Technique (Advanced Trigger)
    56
- Timing Pulse & Measurement Strobe (Optional)
  56
- 10 HZ and 20 HZ Outputs
  58
Chapter 4. Command/Response Formats

58
Appendix A. G12 and Sensor II: Differences and Compatibility

215
Appendix B. Floating Point Data Representation

219
- Sign Bit Field
  219
- Exponent Field
  219
- Fraction Field
  219
- The Represented Value
  220
  - Single-Precision Float
    220
  - Double-Precision Float
    221
Appendix C. Global Product Support

223
- Solutions for Common Problems
  224
- Corporate Web Page
  225
- Repair Centers
  226
- Glossary
  227
- Index
  241

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