The Garmin gsd 26 professional sonar module uses spread spectrum technology to scan on multiple frequencies at one time, returning vast amounts of data to the receiver. As a result, you can expect precise, shallow-water-like target separation at much greater depths – up to 10, 000 ft (3, 000 M). the gsd 26’s dual-transceiver design allows for simultaneous and independent transducer operation.
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Spread spectrum technology