The Trimble® SPS361 and SPS461 GPS Heading and Positioning Receivers are modular, dual-antenna systems for marine construction and hydrographic survey. The receivers can partner with Trimbles HYDROpro software to provide the tools for precise placement of piles, bridges, caissons, offshore drilling rigs and coastal defenses – providing you with dredge head positioning; vessel positioning, vessel heading, and pitch or roll.

Features & Benefits

Both the SPS361 and SPS461 provide precise GPS heading. The Trimble SPS361 supports MSK Beacon and OmniSTAR VBS corrections. The SPS461 includes all the features of the SPS361 plus it’s available with internal 450 or 900MHz radio and is upgradable to varying levels of positioning, including precision RTK.

The Trimble SPS361/461 GPS Heading Receivers offer numerous benefits for marine construction contractors, including:

  • Rapid deployment, easy integration
  • High-precision, dual-frequency GPS heading with fast initialization
  • Data to easily determine the position of other sensors on a vessel (in partnership with Trimble HYDROpro)
  • Support for a range of correction services to provide the position accuracy you need

As one-receiver systems the Trimble SPS361 and SPS461 are cost-effective and ideal for either permanent or temporary installation. Both receivers employ dual-frequency antennas for enhanced performance over single-frequency antenna solutions -Trimble offers a range of antennas to suit each marine customer’s application needs.

The Trimble®SPS361/SPS461 is supported by HYDROpro marine construction software or can be easily integrated into any OEM solution via standard NMEA data output

Key Features

  • Rapid deployment, easy integration
  • High-precision, dual-frequency GPS heading with fast initialization
  • Data to easily determine the position of other sensors on a vessel (in partnership with Trimble HYDROpro)
  • Support for a range of correction services to provide the position accuracy you need

Download Spec Sheet (pdf)