A. When receiving DSC messages other than a distress, urgency and safety call, the control unit is able to provide for an automatic transmission acknowledging the call received. B. The information contained in the DSC message is decoded and displayed on the from panel. C. The information may be stored in an internal memory. D. All of the above.
A. 2. 177 kHz. Both 2, 177 kHz and 156, 525 MHz. C. 156. 525 MHz. D. 2, 177 kHz and 2, 189. 5 kHz used in pairs.
A. F3C. B. J2B. C. G3E. D. J1B.
A. 156, 300 MHz. B. 156. 525 MHz. C. 156. 650 MHz. D. 156. 800 MHz.
A. should be tested daily with radiation of signals B. should be tested weekly with radiation of signals C. should be tested monthly with radiation of signals D. should be tested without radiation of signals
A. transmit and receive distress and safety alerts to and from other ships and shore stations via radio B. receive weather warnings, navigational notices and other marine safety information C. Provide routine communications with the shipowner D. report ships position to search and-rescue authorities via satellite
A. DSC equipment, on the frequency concerned B. VHF RT equipment, on the frequency concerned C. SSB equipment, on the frequency concerned D. all of the above are likely
A. 2,174.5 kHz. B. 4,177.5 kHz. C. 6,312 kHz. D. 8,376.5 kHz.
A. FEC requests are first acknowledged by the vessel, s transmitter before broadcasts can be received. B. FEC mode broadcasts can be received without the transmitter being turned on. C. Weather broadcasts are always made in ARQ mode. D. None of the above.
A. Two sidebands, upper and lower. B. A reduced carrier and the lower sideband. C. A full carrier and the upper sideband. D. A full carrier and both upper and lower sidebands.
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