User's Manual

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Table Of Contents

USER GUIDE
Legal Notices
Safety Information
- Regulations and safety
- Type approval
- Exposure to radio frequency radiation
- Installing antennas
- Battery safety
Contents
Introduction
- About the SPSx80 Smart GPS antenna
- About the SPSx81 Smart GPS antenna
- Related Information
- Technical Support
- Your Comments
Features and Functions
- Overview
- SPS780 Smart GPS antenna features
- SPS781 Smart GPS antenna standard features
- SPS880 Extreme Smart GPS antenna standard features
- SPS881 Extreme Smart GPS antenna standard features
- Use and care
- COCOM limits
- Parts of the receiver
  - Front panel
  - Lower housing
- Button functions
- LED behavior
  - LED flash patterns
Batteries and Power
- External power
- Battery safety
- Battery performance
- Charging the Lithium-ion batteries
- Storing the Lithium-ion battery
- Disposing of the rechargeable Lithium-ion battery
Setup Guidelines
- Base station operation guidelines
  - Base station components
  - Base station setup guidelines
- Rover operation guidelines
  - Rover receiver components
  - Rover receiver setup guidelines
- Cellular modem and external radio
Setting up the Receiver
- Connecting the receiver to external devices
  - Trimble controller with SCS900 Site Controller software
  - External radio-modems
- Common ways to set up a base station
- Common ways to set up a rover receiver
Configuring the Receiver Settings
- Using the SCS900 Site Controller software to configure the base station, the rover, and the radios
- Configuring the receiver to log data for postprocessing
- Configuring the receiver in real time
- Configuring the receiver using application files
- Creating and editing the configuration files that control the receiver
AutoBase Feature
- Setting Up a Base Station
  - Best practice
  - Antenna type
- Scenarios
- AutoBase process
Default Settings
- Default receiver settings
- Resetting the receiver to factory defaults
- Default behavior
- Power up settings
- Logging data
  - Logging data after a power loss
Specifications
- General specifications
- Physical specifications
- Electrical specifications
- Communication specifications
- GPS satellite signal tracking
- Integrated radio options
- Variable configuration options
NMEA-0183 Output
- NMEA-0183 message overview
- Common message elements
  - Message values
- NMEA messages
- ADV
- GGA
- GSA
- GST
- GSV
- HDT
- PTNL,AVR
- PTNL,GGK
- PTNL,PJK
- PTNL,VGK
- PTNL,VHD
- RMC
- ROT
- VTG
- ZDA
GSOF Messages
- Supported message types
- General Serial Output Format
- Reading binary values
  - INTEGER data types
- GSOF message definitions
Adding Internal Radio Frequencies
- Adding receive frequencies for the 450 MHz internal radio
Real-Time Data and Services
- RT17 Streamed Data service
- Login authentication
Upgrading the Receiver Firmware
- The WinFlash utility
  - Installing the WinFlash utility
- Upgrading the receiver firmware
Data Logging and Postprocessed Measurement Operations
- Connecting to the office computer
- Transferring files directly from a CompactFlash card
- Deleting files in the receiver
- Supported file types
Troubleshooting
- LED conditions
- Receiver issues
- Base station setup and static measurement problems
Glossary

SPSx80 and SPSx81 Smart GPS Antennas User Guide 33

Setup Guidelines 4

• Trimble recommends that you install lightning protection equipment at

permanent base station locations. Equipment should include a gas capsule

lightning protector in the GPS and radio antenna feed line and appropriate

safety grounding. A static dissipater near the antennas can reduce the likelihood

of a direct lightning strike. Also protect any communications and power lines at

building entry points. For more information, contact your local Trimble dealer,

or go to the Huber and Suhner website (

www.hubersuhnerinc.com).

• Trimble recommends that you use surge protection equipment on all

permanently installed equipment.

Rover operation guidelines

The second part of the RTK GPS system is the rover receiver.

The rover receiver is mounted on a pole, vehicle, marine vessel, or in a backpack, and is

moved between the points that require measurement or stakeout. The rover receiver is

connected to a base station or to a source of RTK corrections such as a Virtual

Reference Station (VRS) system. The connection is provided by an integrated radio, a

cellular modem in the controller, or through an external cellular phone that is

connected to the receiver either by Bluetooth wireless technology or by means of a

cable.

The correction stream for some other positioning solutions, such as SBAS

(WAAS/EGNOS/MSAS) and the OmniSTAR service

, is broadcast through

geostationary satellites, and detected by the GPS antenna itself. No integrated radio or

base station is required.

Rover receiver components

The rover receiver has the following components:

• GPS receiver

• GPS antenna

• Optional integrated radio receiver and antenna for RTK operations

• Optional items for the different mounting options (see below)

In most rover applications, the receiver operates entirely from its own integrated

battery unit. On a vehicle or on a marine vessel, however, an external power supply can

be used. Use an external power supply if one is provided. The internal battery then acts

as a uninterruptible power supply, covering any external power failures.

OmniSTAR is available only with the SPSx50 and SPSx51 Modular GPS receivers.