Marine Radio Practice Test & Exam Prep | United Kingdom

What happens when an Automatic Tuning Unit (ATU) is activated?

It increases the output power of the transmitter to maximum It matches the impedance of the antenna to the transmitter for optimal power transfer It automatically selects the best frequency based on ionospheric conditions It decrypts incoming digital signals

Correct Answer:

It matches the impedance of the antenna to the transmitter for optimal power transfer

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