What is the international distress and calling frequency in kilohertz?

What is the international distress and calling frequency in kilohertz?

• A. 2182
• B. 156.8
• C. 425
• D. 999

Answer: (A)

Distress and calling frequencies are fixed channels used to initiate contact in emergencies or to start conversations with coast stations or other ships. For long-range voice communications on MF/HF, the international distress and calling frequency is 2.182 MHz, which in kilohertz is 2182 kHz. This frequency is globally monitored and reserved specifically for Mayday calls and establishing initial contact when vessels are outside VHF range. The other numbers correspond to different bands or are not the standard maritime distress calling frequency: the VHF distress channel is 156.800 MHz (which would be 156,800 kHz, not 156.8), and 425 kHz or 999 kHz are not internationally recognized distress calling frequencies for maritime use.

Distress and calling frequencies are fixed channels used to initiate contact in emergencies or to start conversations with coast stations or other ships. For long-range voice communications on MF/HF, the international distress and calling frequency is 2.182 MHz, which in kilohertz is 2182 kHz. This frequency is globally monitored and reserved specifically for Mayday calls and establishing initial contact when vessels are outside VHF range. The other numbers correspond to different bands or are not the standard maritime distress calling frequency: the VHF distress channel is 156.800 MHz (which would be 156,800 kHz, not 156.8), and 425 kHz or 999 kHz are not internationally recognized distress calling frequencies for maritime use.