Subelement B: Communications Procedures— Topic 8: Operating Procedures-1
Question 1-8B2
Element 1 (MROP)Under what circumstances may a coast station using telephony transmit a general call to a group of vessels?
Explanation
Coast stations using telephony are permitted to transmit a general call (e.g., an "all stations" call) when the information is critical and intended for all vessels within range. This primarily includes announcing or preceding transmissions of Distress, Urgency, or Safety messages, such as navigation warnings, meteorological alerts, or other vital information affecting maritime safety. This practice ensures that all potentially affected vessels receive crucial information.
Option A is incorrect because general calls are indeed permitted under specific, important circumstances. Option C is incorrect; the 12-mile limit relates to territorial waters, but doesn't dictate the permissibility of a general call, which is based on the message's content. Option D is incorrect because for routine "identical traffic," specific calls to individual vessels or more targeted group calls are generally preferred to maintain efficient use of the airwaves, reserving general calls for universally important or urgent broadcasts.
Related Questions
1-7B6 The primary purpose of bridge-to-bridge communications is:1-8B1 What is the best way for a radio operator to minimize or prevent interference to other stations?1-8B3 Who determines when a ship station may transmit routine traffic destined for a coast or government station in the maritime mobile service?1-8B4 What is required of a ship station which has established initial contact with another station on 2182 kHz or Ch-16?1-8B5 How does a coast station notify a ship that it has a message for the ship?