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Radio Operator Licensing · Written Element 7

FCC Written Element 7 Examination — GMDSS Radio Operating Practices Practice Test

FCC Written Element 7 practice covers GMDSS radio operating practices used to communicate distress, urgency, safety, and routine traffic at sea. The question bank includes equipment and procedures such as DSC calls, EPIRBs, SARTs, NAVTEX, and Inmarsat-C, along with safe handling of transmission errors and position information.

Exam overview

Exam providerFederal Communications Commission
Exam codeWritten Element 7
CategoryRadio Operator Licensing

About the FCC Written Element 7 Examination — GMDSS Radio Operating Practices Exam

GMDSS operators must distinguish the purpose and handling of different communications and alerting systems. Practice scenarios include deciding what to do with a route-relevant NAVTEX warning, checking whether position data is current before including it in a DSC call, and understanding what a routine-call acknowledgment conveys. Other questions address the roles of EPIRBs and SARTs in distress and survival-craft situations, selecting the correct destination and message mode for Inmarsat-C traffic, and responding after a false distress alert or an unintended transmission. These tasks draw on clear message handling, equipment awareness, and judgment about the consequences of inaccurate or misdirected radio traffic.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

What is the main function of a Search and Rescue Transponder (SART) in a survival craft?

  1. ATo help rescuers locate the craft by responding to suitable search radar signals
  2. BTo send routine weather charts to nearby ships
  3. CTo replace the vessel’s EPIRB for satellite distress alerting
  4. DTo provide two-way voice communication with a rescue center
Show answerCorrect answer: A

A radar SART responds to radar signals from searching units, producing indications that help rescuers home in on the survival craft. It is a locating aid, not a voice radio or a substitute for an EPIRB.

Question 2

What is the purpose of a DSC routine call on a VHF marine radio?

  1. ATo send a digitally addressed call that can identify the station and request contact on a selected channel
  2. BTo broadcast a distress alert to every vessel within range
  3. CTo replace all subsequent voice communication
  4. DTo automatically determine the receiving vessel’s position
Show answerCorrect answer: A

A routine DSC call can address a particular station or group, identify the calling station, and indicate a channel for follow-up communication. It does not itself replace the ensuing voice exchange.

Question 3

A ship’s DSC controller displays a position that is several hours old. What is the best action before sending a non-distress DSC call that includes position?

  1. ATransmit the old position because DSC automatically corrects it
  2. BUpdate or verify the position input and confirm the displayed position is current
  3. CEnter the receiving station’s position instead
  4. DDisable the position field permanently
Show answerCorrect answer: B

Position information sent in a call should be accurate and current. The operator should verify the source and update the equipment’s position input rather than relying on stale data.

Question 4

What is the purpose of a marine EPIRB in a distress situation?

  1. ATo transmit an alert for satellite or other distress-alerting reception and support location of the casualty
  2. BTo provide continuous ship-to-ship telephone service
  3. CTo receive navigational warnings without transmitting
  4. DTo measure water depth around the vessel
Show answerCorrect answer: A

An EPIRB is a distress beacon intended to alert search-and-rescue authorities through its supported alerting system and assist in locating the casualty. Its exact capabilities depend on beacon type and service configuration.

Question 5

A ship receives a NAVTEX warning that is relevant to its intended route. What is a sound operational practice?

  1. AIgnore it unless it is repeated by voice
  2. BRecord or pass the information to the appropriate watchkeeping personnel for voyage-safety consideration
  3. CDelete it immediately to keep the receiver memory clear
  4. DReply to the NAVTEX transmitter with an acknowledgment
Show answerCorrect answer: B

Relevant navigational and meteorological information should be brought to the attention of personnel responsible for the voyage. NAVTEX is a one-way broadcast service, so routine acknowledgment to the transmitter is not the expected response.

Question 6

What does the term simplex mean in radio communications?

  1. ABoth stations transmit at the same time on separate frequencies
  2. BStations take turns transmitting and receiving on the same frequency
  3. CA station automatically relays a message to shore
  4. DA transmission is encrypted before it is sent
Show answerCorrect answer: B

In simplex operation, stations share one frequency and normally alternate between transmitting and receiving.

Question 7

What does a DSC acknowledgment of a routine call generally indicate?

  1. AThe receiving station has accepted the call and the stations can proceed as directed by the equipment and procedures
  2. BThe calling station has been granted exclusive use of the distress channel
  3. CThe receiving station has verified the caller’s identity and position independently
  4. DThe call has been relayed to a coast station automatically
Show answerCorrect answer: A

A routine-call acknowledgment confirms receipt of the DSC call. Operators then follow the radio’s indications and applicable procedures to establish the intended communication; it does not independently verify identity or position.

How to use this practice test

The free US Practice Tests practice bank contains 50 questions; a session presents up to 20 selected at random. Complete a session to see your results, then use missed or uncertain items to identify procedures and equipment functions that need another pass.

Preparation tips

  • Compare the purposes of EPIRBs and SARTs, including how each contributes to locating a vessel or survival craft in distress.
  • Practice distinguishing DSC routine calls from distress alerts, and note what a routine-call acknowledgment communicates.
  • Work through scenarios involving stale position data, checking the call destination and message mode, and correcting transmission mistakes.
  • For NAVTEX scenarios, connect the warning’s relevance to the intended route with the operator’s next practical action.
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