How many HF frequencies are available for DSC Distress related calls?

The correct answer indicates that there are five HF frequencies available for DSC (Digital Selective Calling) distress-related calls. In the context of maritime communication and safety, the use of these specific HF frequencies is crucial for ensuring that vessels can reliably send distress alerts and receive assistance.

These frequencies are designated to enhance global maritime safety and allow for effective communication during emergencies across different regions of the world. The International Telecommunication Union (ITU) has nominated these five frequencies for distress calls to provide coverage for a variety of situations and geographical conditions.

This setup allows vessels equipped with suitable DSC equipment to quickly initiate distress calls, which are vital in situations where immediate assistance is needed at sea. The proper identification and utilization of these frequencies are essential for mariners to understand, as they directly relate to the safety protocols established for maritime operations.