What is the international voice on-scene frequency?

What is the international voice on-scene frequency?

• A. 5680 kHz
• B. 3024.4 kHz
• C. 2670 kHz
• D. 4000 kHz

Answer: (A)

The key fact is that there is one internationally recognized voice channel used for coordinating responders on scene in search-and-rescue operations. This channel is designated to be widely accessible and easy to monitor by ships, aircraft, and ground teams working together in different countries. 5680 kHz sits in the 5 MHz region and has been established as the international voice on-scene frequency because it offers reliable HF propagation for on-scene coordination across long distances and under varying conditions. Using this single, standard frequency helps prevent miscommunication and ensures all involved units can establish contact quickly when they arrive at a scene. The other frequencies listed are not the standardized on-scene voice channel; they may serve other purposes or be used in different contexts, but they aren’t the universally agreed-on on-scene channel.

The key fact is that there is one internationally recognized voice channel used for coordinating responders on scene in search-and-rescue operations. This channel is designated to be widely accessible and easy to monitor by ships, aircraft, and ground teams working together in different countries.

5680 kHz sits in the 5 MHz region and has been established as the international voice on-scene frequency because it offers reliable HF propagation for on-scene coordination across long distances and under varying conditions. Using this single, standard frequency helps prevent miscommunication and ensures all involved units can establish contact quickly when they arrive at a scene.

The other frequencies listed are not the standardized on-scene voice channel; they may serve other purposes or be used in different contexts, but they aren’t the universally agreed-on on-scene channel.