What is the VHF voice calling and distress frequency used with DSC?

What is the VHF voice calling and distress frequency used with DSC?

• A. 156.8 MHz
• B. 156.525 MHz
• C. 2182 kHz
• D. 2187.5 kHz

Answer: (A)

VHF voice calling and distress on ships is done on Channel 16, which is 156.800 MHz. When DSC is involved, you initiate the contact digitally on the DSC frequency 156.525 MHz (Channel 70) to send a call and identify the vessel. Once the DSC exchange is established, the actual voice communication takes place on Channel 16 to carry the conversation or relay distress traffic. The other frequencies are not the VHF voice channel: 156.525 MHz is for DSC digital calls, not voice; 2182 kHz is a MF distress frequency; 2187.5 kHz is an HF DSC calling frequency. So the VHF voice calling and distress frequency used with DSC is 156.800 MHz.

VHF voice calling and distress on ships is done on Channel 16, which is 156.800 MHz. When DSC is involved, you initiate the contact digitally on the DSC frequency 156.525 MHz (Channel 70) to send a call and identify the vessel. Once the DSC exchange is established, the actual voice communication takes place on Channel 16 to carry the conversation or relay distress traffic. The other frequencies are not the VHF voice channel: 156.525 MHz is for DSC digital calls, not voice; 2182 kHz is a MF distress frequency; 2187.5 kHz is an HF DSC calling frequency. So the VHF voice calling and distress frequency used with DSC is 156.800 MHz.