On what frequency would a vessel normally call another ship station when using a radiotelephony emission?

When vessels use radiotelephony emissions to communicate with each other, they typically start their calls on a designated calling frequency. In this context, the appropriate frequencies are 2182 kHz and Channel 16 (Ch-16), which is specifically allocated for this purpose in maritime communication protocols.

These frequencies are recognized internationally for distress and calling purposes, enabling ships to make contact with one another. The practice is standardized to ensure that vessels can reliably reach one another, particularly when it comes to safety and emergency communications. The vessel attempting to call another ship would ordinarily initiate the conversation on one of these channels unless it has prior knowledge that the vessel it wishes to contact is monitoring a different working frequency. This allows for efficient communication and coordination among vessels in close proximity.

The mention of the other options clarifies why they are less appropriate: the reference to a unique working radio channel assigned by the FCC does not encompass the international conventions guiding maritime communication; therefore, it is not a universally applicable method for calling another vessel. The choice of calling at a specific time, such as 15 minutes past the hour, does not align with established maritime communication practices either, as calls are made as needed without a prescribed timing. Lastly, limiting the call to only 218