Question 33E5

VHF Survival Craft Transceivers are specialized equipment for distress and safety communications. * **A) Operation on Ch-13 is mandatory.** This statement is **NOT true**. Channel 13 (156.650 MHz) is designated for bridge-to-bridge navigation and maneuvering. While standard marine VHF radios include it, it is not a mandatory channel for a survival craft transceiver, which prioritizes distress and safety channels. * **B) Effective radiated power should be a minimum of 0.25 Watts.** This statement is true. A minimum ERP of 0.25 Watts is required to ensure sufficient range for local communications (e.g., with a rescue vessel) while conserving battery power for extended use in a survival situation. * **C) Simplex (single frequency) voice communications only.** This statement is true. Survival craft transceivers operate in simplex mode, meaning transmit and receive occur on the same frequency. This simplifies operation and equipment design, and is efficient for battery power in an emergency. * **D) Operation on Ch-16 is mandatory.** This statement is true. Channel 16 (156.800 MHz) is the international distress, safety, and calling frequency. Operation on Ch-16 is absolutely essential for any marine VHF radio, especially a survival craft transceiver, to establish contact in an emergency.