Practice Test Geeks(GROL) General Radiotelephone Operator License Practice Test
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Radio Law and Regulations Flashcards

7 cards from real GROL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Radio Law and Regulations flashcards as text

  1. What is the primary purpose of the Global Maritime Distress and Safety System (GMDSS)?

    Answer: To ensure automated distress alerting and SAR coordination independent of dedicated watchkeeping

    GMDSS is designed so that distress alerts and search-and-rescue coordination can occur automatically without requiring a dedicated radio operator on continuous watch.

  2. In the GMDSS framework, what does Sea Area A1 designate?

    Answer: Areas within VHF DSC range (approximately 20–30 nm) of at least one designated coast station

    GMDSS Sea Area A1 is defined as an area within VHF radiotelephone range of at least one VHF DSC-equipped coast station.

  3. Which GMDSS equipment is required on all SOLAS vessels regardless of the sea area in which they operate?

    Answer: VHF radio with DSC capability on Channel 70

    All SOLAS-convention vessels must carry VHF radio with DSC capability as the baseline GMDSS equipment requirement applicable in every sea area.

  4. Which VHF channel is internationally designated for Digital Selective Calling (DSC) distress alerts?

    Answer: Channel 70 (156.525 MHz)

    VHF Channel 70 (156.525 MHz) is the internationally designated DSC calling and distress frequency, separate from the voice distress channel.

  5. With which agency must an EPIRB be registered to be fully effective in search and rescue operations?

    Answer: NOAA (National Oceanic and Atmospheric Administration)

    EPIRBs must be registered with NOAA so that rescue coordination centers can identify the vessel and contact next-of-kin when an alert is received.

  6. What is the function of a Search and Rescue Transponder (SART)?

    Answer: To respond to 9 GHz radar pulses and create a visible pattern on a rescuer's radar display

    A SART responds to 9 GHz X-band radar pulses from searching vessels or aircraft, generating a distinctive series of dots on the radar screen to pinpoint a survival craft's position.

  7. Under GMDSS procedures, what is the correct immediate action when a ship receives a DSC distress alert?

    Answer: Acknowledge the alert via DSC and then switch to Channel 16 for voice coordination

    Upon receiving a DSC distress alert, ships should acknowledge receipt via DSC and then switch to VHF Channel 16 to establish voice communication with the distressed vessel and coordinate assistance.