Which frequency is NOT a SOLAS monitoring frequency?

Which frequency is NOT a SOLAS monitoring frequency?

• A. 156.8 MHz
• B. 2182 International (MF)
• C. 156.525 MHz
• D. 123.45 MHz

Answer: (D)

Frequencies used for SOLAS monitoring are the ones designated for distress and safety communications under the Global Maritime Distress and Safety System. On VHF, the main distress channel is 156.8 MHz (Channel 16) and the DSC channel for safety calls is 156.525 MHz (Channel 70). On MF, 2182 kHz is the international distress frequency for radiotelephony. The frequency 123.45 MHz is not part of SOLAS monitoring allocations, so it isn’t used for distress or safety communications. That makes 123.45 MHz the frequency that is not a SOLAS monitoring frequency.

Frequencies used for SOLAS monitoring are the ones designated for distress and safety communications under the Global Maritime Distress and Safety System. On VHF, the main distress channel is 156.8 MHz (Channel 16) and the DSC channel for safety calls is 156.525 MHz (Channel 70). On MF, 2182 kHz is the international distress frequency for radiotelephony. The frequency 123.45 MHz is not part of SOLAS monitoring allocations, so it isn’t used for distress or safety communications. That makes 123.45 MHz the frequency that is not a SOLAS monitoring frequency.