Which frequencies are designated as MF/HF DSC Distress watch frequencies?

The frequencies designated for MF/HF DSC (Digital Selective Calling) distress watch are specifically chosen to optimize the transmission and reception of distress signals. The correct frequencies, which include 2187.5 kHz and 4207.5 kHz, are part of the allocated bands that facilitate direct and immediate communication during emergencies, enhancing the chances of being heard by vessels in the vicinity as well as coast stations that monitor these frequencies constantly.

The frequency 2187.5 kHz is significant as it is the primary distress frequency for DSC in the MF band, while 4207.5 kHz is one of the designated frequencies in the HF band for distress purposes. This careful selection is meant to ensure reliable communication in distress situations, as these frequencies are monitored by multiple stations.

Other options do not list the correct frequencies recognized internationally for distress alerts. For example, while 2182.0 kHz is indeed a standard distress frequency, it is traditionally used for voice communication and not specifically categorized under DSC for distress watch. Understanding these specifics is crucial for all mariners to ensure compliance with maritime safety regulations and effective emergency communication.