005E D
 If operating within Ocean Area A1, and outside of NAVTEX coverage, a GMDSS-equipped vessel must carry?
a) An Inmarsat-B terminal 
b) A GPS receiver
c) Equipment capable of maintaining a continuous DSC watch on 2187.5 kHz.
d) Equipment capable of reception of Maritime Safety Information by the Inmarsat enhanced group call system, or HF NBDP.
