The MicronNav 200 system is the latest generation of UltraShort Base Line (USBL) positioning system from Tritech. Designed for small vehicles and diver supporting applications, the system benefits from a number of new features including  data transfer interleaved with USBL positioning, software integration into Google Maps™, smaller, more accurate USBL head and compatibility with the new MicronBattery Modem.

The system comprises a subsea MicronModem or Battery MicronModem, a surface USBL transducer with integral magnetic compass and pitch/roll sensors, a surface MicronNav 200 interface hub and bespoke operating software under control of a topside PC/laptop.

The MicronNav 200 uses spread spectrum acoustic technology. This provides a robust method for communication between the dunking transducers and the vehicle MicronModem/MicronBattery Modem. The USBL transducer can provide 180 degree hemispherical coverage below the transducer, which allows vehicle tracking in very shallow water. Omni-directional coverage is provided by the MicronModem and MicronBattery Modem.

The MicronModem is a stand-alone device which either responds to acoustic interrogation from the USBL head (transponder mode), or is triggered by RS232 / RS485 (responder mode) through the main port. The responder trigger can come either from the auxiliary port on a Tritech MicronSonar, or directly from the MicronNav 200 interface hub.