Leica Viva GS25 Waterborne GNSS Receiver
The Leica Viva GS25 GNSS receiver has the best performance and is capable of measuring in harsh environments. The GS25 has a PPS output port, which can output NMEA data through the RS232 serial port, which can provide time and location information for the multi-beam sounding system at the same time, making the GS25 an ideal product for water surveying. The Leica Viva GS25 has a battery compartment, which can be powered by a large-capacity replaceable lithium battery, and can also charge the battery when connected to an external power source. The GS25 can be connected to a base station or reference station network using a replaceable built-in UHF radio, GSM / GPRS / UMTS communication module, etc.
Proven technology, trustworthy. <br /> Leica Geosystems' years of technical experience in measuring GNSS have laid the foundation for Leica Viva GNSS. High reliability and precision have become the hallmarks of Leica GNSS. You can count on Leica Viva GS25 to help you complete demanding tasks.
High reliability <br /> Leica Viva GS25 is the highest standard instrument for the most demanding field environments. Its large-capacity built-in battery gives you complete peace of mind to perform tasks in remote areas.
Great flexibility <br /> Leica Viva GS25 has great flexibility, PPS timing, event input, replaceable communication module and a variety of storage devices, providing you with a completely modular solution.
Smart operating software <br /> The Leica SmartWorx Viva's ease of use has been improved to a new level and can be controlled using SmartWorxViva and the onboard Web Server.
Leica Viva GS25 water measurement solution
Water surveys can be divided into underwater topographic map surveys and water engineering construction positioning surveys according to their properties. Water surveys generally use combined instruments for indirect surveys, such as GPS and depth sounders. RTK technology is applied to water measurement, which has the advantages of high measurement accuracy, no need for tide test data, and low labor intensity. It has gradually become the main method of water measurement. The Leica Viva GS25 maritime surveying receiver is designed for maritime surveying applications. It has a series of advantages for maritime surveying, making maritime surveying easier.
GS25 provides 13 commonly used data messages based on the NMEA 0183 V4.00 international standard, such as GGA, GGK, GLL, LLK, etc., which can provide position information, accuracy information, time information, etc. for equipment such as multi-beam depth sounders, which fully meet Demand for various sounding equipment.
PPS function <br /> Time synchronization between multi-beam sounding data and motion sensor data is the key to obtaining high-quality sounding data. The GS25 has a PPS output function. The PPS signal is used to achieve precise synchronization of the positioning data and the multi-beam system to ensure the accuracy of real-time sounding data in the wild.
Dust and waterproof IP68
The working environment on the water has the characteristics of high humidity and possible contact with water at any time, the instrument is not well sealed, the use cycle is greatly shortened, resulting in increased costs. GS25 adheres to the consistent high quality of Leica products, has a strong seal, is durable, and has a dustproof and waterproof rating of IP68.
The GNSS antenna and the GS25 receiver adopt a split design. The GNSS antenna can be easily placed where it is needed, and the receiver is placed in the cabin. This not only facilitates the alignment of the antenna phase center with the measurement center of other equipment, but also protects Receiver.
GS25 has SBAS function, which can receive satellite signals such as WAAS, EGNOS, GAGAN, MSAS and get sub-meter positioning results. When the water measurement work is far from the land and cannot receive the base station data, the SBAS function can assist you to complete the measurement work.
20Hz update rate <br /> When measuring on the water, the dynamic nature of the measurement vessel requires a higher update rate for positioning. The GS25 maritime surveying receiver is equipped with a sampling rate of up to 20Hz, which fully meets your requirements for high dynamic recording of points and high frequency recording on board.
Extremely long working distance
Waterborne operations, especially inland lakes or offshore surveys, place higher requirements on RTK distances. Leica ’s base station radio uses the Satel 35W radio from Finland, which has a large coverage area and satisfies the transmission of differential correction numbers for waterborne measurements Harsh requirements for distance.
Navigation sounding software
According to the actual needs of users and the characteristics of Leica instruments, Leica Shanghai Technology Center has developed a powerful navigation sounding software to implement functions such as coordinate conversion, design of measurement circuits, and data acquisition.