Technologies
TerraSond's knowledge and ability to manage new technologies enables us to play a key role in the surveying and mapping industry.
We own and maintain a large suite of complex software and equipment that is necessary for executing accurate land and hydrographic surveying and mapping. The technology includes specialized tools for obtaining measurements and performing calculations on land and water that are essential for creating, editing and analyzing spatial and attribute data.
We support our staff's ability to manage new technologies by providing additional education and training. We also encourage hands-on experience to increase the conceptual understanding of geographic information systems (GIS) and their practical application for our projects.
Global Positioning System (GPS)
The Global Positioning System (GPS) is the only fully functional Global Navigation Satellite System (GNSS). Utilizing a constellation of at least 24 Medium Earth Orbit satellites that transmit precise microwave signals. The system enables a GPS receiver to determine its location, speed, direction, and time.
TerraSond's inventory of GPS equipment is capable of Differential GPS (DGPS), Real Time Kinematic (RTK) and static survey methods including dual frequency, survey grade GPS receivers that have the ability to measure with sub-centimeter accuracy. Our Trimble data collectors are capable of interfacing to any of these receivers as well as to conventional Total Stations.
GPS is used on our projects as an economical solution for accurate and repeatable positioning of the various sensor technologies we employ.
CSI MBX-3 DGPS
CSI Wireless is an industry leader in the development and manufacture of differential radiobeacon receivers. The MBX -3S differential beacon receiver employs CSI Wireless' proven technology to receive free differential beacon signals available throughout the world. 
CSI MBX-4 DGPS
The MBX-4 receives and demodulates RTCM SC-104 differential correction data transmitted by 300 kHz DGPS radiobeacons. The MBX-4 house the Hemisphere GPS dual channel SBX-4 beacon receiver engine that features high-performance beacon search algorithms and a highly sensitive, adaptive architecture. 
CSI Vector
The CSI Vector GPS system delivers accurate 2D GPS heading data (heading and roll or pitch) with better than 0.1 degree rms accuracy. 
Leica GPS1200+
The Leica GPS1200+ is capable of fast satellite acquisition, high accuracy measurements and tracking to low elevations. It has the world’s first phase multipath mitigation technology, is jamming resistant, with high up-date rate, low latency, and fast, reliable, long-range RTK. The GPS1200+ can be used as a reference… 
Trimble 4000
The 4000MSK DGPS Reference Station receiver combines Trimble's GPS receiver and marine band Minimum Shift Keying (MSK) modulator technologies into one unit. The 4000MSK DGPS Reference Station, combined with the 4000IM MSK Integrity Monitor and the Beacon Control System Software (BCS), provides the most straightforward … 
Trimble 5700
The Trimble 5700 is a 24-channel dual-frequency RTK GPS receiver for the tracking of GPS satellites. WAAS and EGNOS capability lets you perform real-time differential surveys to GIS grade without a base station. 
Trimble 7400
The Trimble 7400 is a dedicated RTK GPS receiver system that seamlessly transitions between centimeter level accuracy, based on RTK/OTF carrier phase data, and sub-meter accuracy, based on L1 C/A code data. The 7400 is ideal for optimal marine application solutions. 
Trimble DSM212 DGPS
The DSM12/212 is used by marine professionals for sub-meter positioning during applications such as precise positioning, dredging, hydrographic surveying, and high speed vessel positioning. 
Trimble SPS880 (R8)
The Trimble R8 is a 24-channel, dual-frequency GPS receiver, GPS antenna, and data-link radio combined in one compact unit and weighing just 1.3 kg. (2.9 lb).