To set-up the MF/HF Transceiver for a voice call to a coast station, the operator must:

Correct Answer: Option D — Select J3E mode for proper voice operations.

Voice communications on MF/HF bands utilize J3E emission, which is Single Sideband suppressed carrier. This mode is the international standard for maritime radiotelephony. Selecting J3E ensures the transceiver is correctly configured to transmit and receive human speech, providing the necessary bandwidth and modulation for clear voice-based distress or routine traffic.