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138. What is the minimum power of the SCT
Survival craft transceivers (SCTs) require a minimum transmit power of 1 watt to ensure reliable short-range distress communications while conserving battery power. This value balances sufficient range with extended battery life, and is consistent with USCG exam and training materials. Options A and C are too high and low respectively, and option D is incorrect because a defined minimum power exists.
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