Rover Options
Precise RTK Horizontal
Precise Vertical RTK
Precise Heading/Vector
Location RTK
RTCM DGPS
Base Options
Static RTK
Moving Base
RTCM DGPS
Signal Options
GLONASS
L2C
L5
SBAS
Omnistar VBS
Omnistar HP/XP
Beacon
General Options
Data Logging
1PPS
VRS Support
Upgradeable
Max Data Rate (Hz)	20

Standard        Optional  

Glossary

Trimble SPS461  

The Trimble® SPS461 GPS Heading and Positioning Receiver is a modular, dual-antenna system for marine construction and hydrographic survey. The SPS461 includes all the features of the SPS361 and it is available with internal 450 or 900MHz radios and is upgradable to varying levels of positioning, including precision RTK. Both the SPS361 and SPS461 provide Precise GPS Heading. 

As one-receiver system, the SPS461 is cost-effective, and ideal for either permanent or temporary installation. The receiver employs dual-frequency antennas for enhanced performance over single-frequency antenna solutions.   

Key Features  

• Rugged, weatherproof modular receiver design
• GPS L1/L2, L2C,SBAS and OmniSTAR VBS/XP/HP capable
• Keypad and display for easy configuration and status monitoring
• Bluetooth® , Ethernet, Serial, and USB communications
• Optional integrated 450M Hz UHF or 900 MHz radios for easy configuration
• Industry standard NMEA, RTCM, and CMR™ inputs and outputs
• 1PPS output for time synchronization with other devices
• Provides precise heading output 

Specifications for SPS461 options:
DGPS	Location	Precise Vertical	RTK