SMART and Ultrasonic NMEA 0183 / 2000 kHz Transducers
Airmar 'Smart' transducers contain active circuitry that converts the sensor data into a standard NMEA format.
NMEA 0183 versions output standard NMEA 0183 sentences for connection to a display or multiplexer. These transducers must be connected to a 12v power supply.
NMEA 2000 versions output standard NMEA 2000 data formats and have an NMEA 2000 drop cable attached, ready to plug into a T-connector on a network backbone. These transducers are powered by the network.
Smart depth transducers use the 235kHz frequency so as not to interfere with fishfinder transducers.
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