Trimble SPS651 Modular GPS Receiver

The Trimble® SPS651 Modular GPS Receiver is the receiver of choice for a construction supervisor's truck -- where cost-effective real-time positioning with precise vertical measurement is required. With 10cm (location) horizontal accuracy and 2cm (precise) vertical accuracy, contractors can be confident knowing they are getting the right positioning tool at the right price.

The SPS651 receiver can operate in all Location GPS modes, including Satellite Based Augmentation Systems (SBAS), DGPS, OmniSTAR (VBS, XP, and HP services), and Location RTK mode.

It can also be upgraded to track the GLONASS satellite constellation signals - allowing it to operate in areas with obstructed sky visibility or during times of limited GPS availability.

Modularity allows the flexibility to mount the receiver and GPS antenna in a variety of ways, example on a pole, backpack, site vehicle, light machinery or marine vessel. The receiver can be mounted in an accessible location where it is easy to configure and is secure from theft and weather, while the antenna can be mounted in a location that provides clear line of sight to sky and that reduces the potential for multipath.

SPS651 Features and Benefits

• 2cm vertical and 10cm horizontal accuracy in Location RTK mode - provides the vertical precision of an RTK rover at a reduced cost
• Tracks L1 and L2 GPS signals
• Upgradeable to track L2C and GLONASS signals for increased performance in areas of obstructed sky view for GPS-only
• Uses the industry-leading Trimble RTK Engine for real-time corrections
• 1 Pulse Per Second (1PPS) output for precise synchronization with other positioning equipment such as marine multibeam echosounders
• Operational in all Location GPS modes, including Satellite Based Augmentation Systems (SBAS), DGPS, OmniSTAR (VBS, XP, and HP services, subscription required), and higher accuracy Location RTK mode
• Can be used with an external radio modem, an internal 900 MHz radio for CMR corrections or an internal 450 MHz radio for transmit/receive of RTCM corrections
• Modular design allows mounting flexibility for greater accuracy and added security
• Add on the Trimble SPS551H GPS Receiver for precise heading output

Applications

• Construction site supervisor operations
• Pole and ATV-mounted rover applications
• Dredging operations
• Harbor construction
• Land reclamation

An Important Component of Trimble Site Positioning Systems

Trimble Site Positioning Systems offer contractors a choice of instruments for measurement and stakeout on the jobsite:
Trimble SPS781 and Trimble SPS881 Smart GPS Antennas
Trimble SPS751 and SPS851 Modular GPS Receivers
Trimble SPS651 and SPS551 Modular GPS Receiver
Trimble SPS551H Heading Add On GPS Receiver
Trimble SPS730 and SPS930 Construction Total Stations

Trimble SCS900 Site Controller Software allows heavy and highway contractors to efficiently control and quantify site operations without relying on a contract surveyor for site measurement and stakeout requirements.

With real-time monitoring of dredging oprations, HYDROpro is key to helping contractors reduce overdredge and work more efficiently.