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Doppler Log Errors and Frequency Selection Quiz

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Doppler Log Errors and Frequency Selection Quiz

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Questions and Answers

What are the speed ranges indicated by the dual axis log for fore and aft axis?

Speed along the fore and aft axis is indicated from -20 to 50 knots.

What type of transducer assembly is utilized in the dual axis log?

A four-element electrostrictive transducer assembly is used.

What is the transmission frequency used by the display unit in the main navigation display?

Triple beam, 440 kHz pulsed transmission.

What additional functionality is enabled by electronic signal processing in the dual axis log?

Echo sounding function in bottom tracking speed mode. Signup and view all the answers

What principles is the Furuno Doppler Sonar DS-30 system based on?

Doppler speed measurement principles. Signup and view all the answers

What type of signal is used by the Furuno Doppler Sonar DS-30 system to calculate longitudinal and thwartship speeds?

Doppler shifted signal. Signup and view all the answers

What size is the LCD display in the Furuno Doppler Sonar DS-30 system?

Full-color 10-inch wide LCD display. Signup and view all the answers

What type of circuitry is utilized in the Furuno Doppler Sonar DS-30 system for data processing?

Advanced data processing circuitry. Signup and view all the answers

What functionality is enabled by the echo sounding function in the DS-30 system?

Bottom tracking speed mode. Signup and view all the answers

What technology is used in the signal processing of the DS-30 system to enhance data presentation?

Microtechnology. Signup and view all the answers