Question 66 RVR05 - Master of LT 100 GRT

The Correct Answer is A. **Explanation for Option A (PAN-PAN):** The VHF channel 16 (156.8 MHz) and 2182 kHz are international distress and calling frequencies. In maritime radio communications, "PAN-PAN" is the international urgency signal. It indicates that the calling station has a very important message concerning the safety of a ship, aircraft, or other vehicle, or the safety of a person, but does not require immediate assistance (i.e., it is not a grave and imminent danger). Since the scenario specifies that you "need help but are not in danger," PAN-PAN is the appropriate signal to signify urgency without distress. **Explanation of Incorrect Options:** * **B) "MAYDAY":** This is the international distress signal. It is used exclusively when a vessel or person is threatened by grave and imminent danger and requires immediate assistance. Since the scenario states you are **not** in danger, using MAYDAY would be inappropriate and misleading. * **C) "ASSISTANCE NEEDED":** While this phrase accurately describes the situation, it is not one of the internationally recognized radio telephony urgency or distress signals. Using this phrase alone would not receive the immediate priority or recognition afforded to PAN-PAN. * **D) "SECURITE":** This is the international safety signal. It is used to transmit messages concerning the safety of navigation or giving important meteorological warnings. It is a lower priority signal than urgency (PAN-PAN) and distress (MAYDAY), and is used for broadcasting general safety information, not for requesting specific help for the transmitting vessel.