Subelement D: Other GMDSS Equipment— Topic :
Question 35D5
Element 9 (GMDSS Maintainer)Which statement is NOT true regarding the requirements of survival craft portable two-way VHF radiotelephone equipment?
Explanation
Survival craft portable VHF radiotelephones are designed for emergency voice communication. While they must operate simplex, the statement that they operate on Channel 70 is incorrect. Channel 70 (156.525 MHz) is exclusively reserved for Digital Selective Calling (DSC) distress alerts and routine calls. Survival craft radios transmit voice on distress and safety channels like Channel 16 (156.8 MHz) and other working channels (e.g., Ch-06 for intership).
The other statements are true requirements:
A) Watertightness (1 meter for 5 minutes) is a crucial safety standard for marine equipment.
C) A minimum effective radiated power of 0.25 Watts ensures sufficient range for short-distance communications.
D) A fixed, non-removable antenna prevents loss and ensures immediate operational readiness in an emergency.
Related Questions
35D3 What is the minimum required effective radiated power?35D4 Equipment for radiotelephony use in survival craft stations under GMDSS must have what capability?35D6 Equipment for radiotelephony use in survival craft stations under GMDSS must have what characteristics?36D2 The NAVTEX is powering on and appears to be functioning normally except there have been no new messages for an extended period. The station settings are correct. What is the most likely source of the problem?36D3 How is a NAVTEX receiver programmed to reject certain messages?