What is the calling frequency for Mobile VHF radio telephone for international distress?

The calling frequency for Mobile VHF radio telephone for international distress is 156.8 MHz. This frequency is recognized globally for distress communications and is specifically designated as the United Nations International Maritime Organization (IMO) distress and calling frequency.

In maritime communications, 156.8 MHz is used primarily for the Global Maritime Distress and Safety System (GMDSS). It serves the critical function of allowing vessels in distress to communicate their situation and needs effectively, enabling rescue efforts to be coordinated quickly and efficiently.

This frequency is vital for maintaining safety at sea and is monitored by vessels and coastal stations to ensure prompt responses to emergencies. Knowing this frequency is essential for anyone involved in maritime operations or safety protocols.