User's Manual

CHAPTER
1
SPSx50 Modular GPS Receiver User Guide 13
Introduction 1
Welcome to the SPSx50 Modular GPS Receiver
User Guide. This manual describes how to set up
and use the Trimble
®
SPSx50 Modular GPS
receivers.
Even if you have used other Global Positioning
System (GPS) products before, Trimble
recommends that you spend some time reading
this manual to learn about the special features of
this product. If you are not familiar with GPS,
visit the Trimble website (
www.trimble.com) for
an interactive look at Trimble and GPS.
About the SPSx50 receivers
The SPSx50 Modular GPS receiver family
comprises the following receivers:
• SPS550
• SPS550H
• SPS750 Basic base
• SPS750 Basic rover
• SPS750 Max
• SPS850 Extreme
SPS550 GPS receiver
The Trimble SPS550 is a dual-frequency location
GPS receiver. The SPS550 can operate as a DGPS
reference station or as a DGPS rover receiver, and
can use Satellite Based Augmentation Systems
(SBAS). The receiver can also function as a rover
receiver that uses OmniSTAR XP or HP
correction services. The SPS550 is ideal for
mobile applications on marine vessels and site
vehicles where RTK accuracy is not needed. The
SPS550 can be used with the SPS550H GPS
receiver to provide both position and precise
heading solutions for marine applications.
SPS550H GPS receiver
The Trimble SPS550H is an add-on receiver that
can be combined with any SPSx50 receiver to
provide a precise heading capability using
Trimble moving base technology.
SPS750 GPS receiver
The Trimble SPS750 is a dual-frequency GPS
receiver with the ability to receive OmniSTAR
corrections. The receiver is available in the
following configurations:
• SPS750 Basic base
• SPS750 Basic rover
• SPS750 Max
The SPS750 can be configured using the keypad
and display, a web browser, or the Trimble
SCS900 Site Controller software. The SPS750
makes it easy to set up a mobile base station or a
permanent base station for continuous
operation. The SPS750 is also an ideal mobile
receiver for semi-permanent mounting on
vehicles and marine vessels.