Subelement D: Other Equipment— Topic 23: Survival Craft VHF
Question 1-23D1
Element 1 (MROP)Which statement is NOT true regarding the requirements of survival craft portable two-way VHF radiotelephone equipment?
Explanation
Survival craft portable VHF radios are designed for critical voice communication in emergency situations. Statement C is incorrect because Channel 70 is exclusively designated for Digital Selective Calling (DSC), which is a digital signaling system, not for simplex voice communication. These portable survival radios operate simplex on Channel 16 (the international distress, safety, and calling frequency) and other voice working channels.
The other statements are true requirements:
A) These radios must be watertight to ensure functionality after immersion.
B) A minimum effective radiated power of 0.25 watts ensures a usable signal range.
D) A fixed, non-removable antenna prevents loss or damage in an emergency.
Related Questions
1-22D5 At what point does a SART begin transmitting?1-22D6 How can a SART’s effective range be maximized?1-23D2 Which statement is NOT true regarding the requirements of survival craft portable two-way VHF radiotelephone equipment?1-23D3 With what other stations may portable survival craft transceivers communicate?1-23D4 Equipment for radiotelephony use in survival craft stations under GMDSS must have what capability?