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Subelement B: F.C.C. Rules & Regulations— Topic :

Question 12B2

Element 7R (GMDSS-RO)

What is the meaning of “Reserve Source of Energy”?

Explanation
In the context of radio regulations, particularly those governing maritime safety (like GMDSS), a "Reserve Source of Energy" refers to a dedicated power supply, typically a bank of batteries. Its purpose is to ensure the vessel's radio installation can operate and conduct critical Distress and Safety communications even if both the main and emergency sources of electrical power fail. This provides a crucial last line of defense for broadcasting distress signals and receiving aid. A) This describes survival rations, unrelated to radio power. B) This refers to fuel for lifeboat propulsion, not an electrical power source for radio equipment. D) This describes an "Emergency Source of Energy," which is usually the first backup after the main power fails. The "Reserve Source" is a subsequent, dedicated backup specifically for essential radio functions.

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