Subelement E: Survival Craft Equip & S.A.R.— Topic :
Question 34E6
Element 7R (GMDSS-RO)Passenger vessel “On Scene” communications should be conducted with aircraft on which of the following channels or frequencies?
Explanation
VHF 121.5 MHz is the international aeronautical emergency frequency. Aircraft, especially those involved in search and rescue (SAR) operations or responding to distress calls, are equipped to monitor and communicate on this frequency. Therefore, for "on scene" coordination between a vessel and aircraft during an emergency or SAR event, 121.5 MHz is the designated and most effective channel.
Conversely, 9 GHz is in the microwave band and primarily used for radar, not voice communications. VHF Channel 13 is designated for bridge-to-bridge navigation safety communications between vessels, not for communication with aircraft. VHF Channel 26 is a public correspondence (ship-to-shore telephone) channel and is not monitored by aircraft for emergencies.
Related Questions
34E4 On Scene communications are usually initiated using what equipment?34E5 On Scene communications should be conducted on which of the following channels?35E1 Which action should the GMDSS radio operator take in a Distress situation when embarking in survival craft?35E2 Which of these would be vital to a GMDSS SAR situation in polar regions?35E3 Which statement is NOT true regarding the COSPAS-SARSAT system?