GMDSS FCC Element 7 Practice Test

These questions are part of the practice quiz. Start practicing

• What advantage does a vertical whip have over a long wire?
• Which of the following is a characteristic of ship station identifiers?
• To transmit a SITOR (NBDP) message "live" to a shore office, which sequence should be dialed by the GMDSS operator?
• Which of the following provides a unique automated system capable of addressing messages to pre-determined groups of ships?
• A manual ship-ship ARQ message typically begins with which sequence of ARQ procedures?
• It is possible to transmit all of the following via Inmarsat-C from a vessel except?
• What should a GMDSS Radio Operator do if a NAVTEX warning message is received but contains too many errors to be usable?
• What interpretation does ITU duplex channel 1604 imply?
• Which type of station communicates using a 9-digit MMSI number?
• Which of the following statements is true?
• When using SafetyNETTM for MSI receipt, what is true about Urgency and Distress messages?
• What is the primary function of a LES?
• What is an important safety feature of the GMDSS communications protocols?
• Which statement regarding bandwidth and channel spacing is correct?
• Which channel serves as the VHF follow-on communications channel required in portable survival craft equipment?
• Which Inmarsat Earth stations would be available for Inmarsat-C traffic if the vessel is off the Pacific Coast of the United States but logged-in to the AOR-W satellite?
• How many SITOR (NBDP) signals can occupy the space of one voice signal?
• What is the purpose of using distinct phases like "PAN PAN"?
• What is the correctly formatted Inmarsat-C address book entry for sending messages to a shoreside terminal in New Jersey?
• If the Inmarsat-C terminal is inoperative but the vessel remains within NAVTEX coverage, which message categories should not be disabled?
• Which of the following represents the correct Inmarsat-C entry for a fax machine number in the United Kingdom?
• What statement best describes demodulation?
• What must GMDSS Radio Logs contain according to federal regulations?
• Which emission mode occupies the most bandwidth?
• Which option correctly describes the type of signals in SITOR transmissions?
• Which scenario would typically use the Safety priority?
• Aboard ship, SafetyNETTM messages can be received by which method?
• Which of the following would indicate an Inmarsat-B terminal?
• What type of digital code system is used in SITOR (NBDP) communications?
• What is the main purpose of NAVAREAs?
• A vessel on a voyage between Miami and Los Angeles via the Panama Canal would be operating in which NAVAREAS?
• Which frequency can NOT be used for receiving SafetyNETTM messages?
• During SITOR (NBDP) ARQ operations, what should the GMDSS operator do during the automatic exchange of answerbacks?
• Which statement about ARQ transmissions is true in SITOR (NBDP) communications?
• How should DSC relays of distress alerts be handled if the original DSC call is not acknowledged?
• Which ARQ code sequence is used for sending synoptic weather, switching control from one station to another, and terminating phasing with a coast station?
• What is the primary purpose of using error correction techniques in digital communications?
• What frequency range is typically used for Distress communications?
• Which statement concerning Inmarsat-B and Inmarsat-C terminals is correct?
• Which of the following is a DSC watch frequency?
• Which sequence best describes a complete ARQ TELEX exchange with a coast station?
• Which NAVAREA is associated with the western North Atlantic and the Caribbean Sea?
• What is the correct Inmarsat-C address format for sending TELEX to a vessel in the IOR?
• Where should the GMDSS radio log be maintained aboard a ship?
• The best way to test the MF-HF SITOR (NBDP) system is to:
• Which of the following is a correctly formatted address for sending TELEX messages from an Inmarsat-C terminal to an Inmarsat-C vessel in the AOR-W?
• What does duplex "ITU channel" refer to?
• The relay of DSC Distress alerts can quickly burden GMDSS systems in what way?
• Which of the following is NOT part of the GMDSS operator's responsibilities during SITOR communications?
• What channel is designated for GMDSS Digital Selective Calling?
• What additional information should be included in a detailed satellite distress message?
• Which mode occupies the least bandwidth?
• What is the primary purpose of imposing radio silence?
• What is the primary use of paired SSB frequencies?
• What is the effect of having five periods in the text of a TELEX transmission on an Inmarsat-B SES?
• Which of the following MMSI numbers indicates a U.S. flag ship station?
• Which statement about the COSPAS-SARSAT system is NOT true?
• How can reception of certain NAVTEX broadcasts be prevented?
• Which frequency is designated for On-scene Distress and Safety communications?
• Which functions may the holder of a GMDSS Radio Operator License NOT perform on the Inmarsat-C equipment?
• The U.S. Coast Guard communications station providing HF MSI broadcast coverage for NAVAREA XII is:
• Which method of communication is primarily used for distress alerts in GMDSS?
• What is the signal transmitted in J2B mode?
• What does GMDSS stand for in the context of maritime communication?
• What sequence of ARQ codes is used for manual over, end of message text, and end of connection to land destination terminal?
• What is the emission designation for VHF-FM?
• What immediate remedy can be used to correct shadowing of the satellite signal by a shipboard obstruction?
• What signal follows the use of "Securite" in urgency transmissions?
• In what context is "Seelonce Feenee" used?
• How is a Distress alert primarily acknowledged by the receiver?
• Which of the following correctly describes an Inmarsat-C address book entry for fax communications in general?
• To call another vessel for voice communications regarding important business, the GMDSS operator should:
• The U.S. Coast Guard communications station providing HF MSI broadcast coverage for NAVAREA IV is:
• With an Inmarsat-C LES, how are messages routed to receiving stations?
• Which system is used for transmitting Maritime Safety Information via satellite?
• What is the normal voltage of a single lead acid battery cell?
• How is an ITU simplex channel frequency assignment defined?
• Messages are transmitted by an Inmarsat LES according to what criteria?
• Which channel is designated for "On-scene" communications in GMDSS?
• Which statement is correct regarding a method for a vessel experiencing problems with shadowing of an Inmarsat-B SES antenna?
• What number would place an automatic TELEX call to the subscriber number of 123456 using an Inmarsat-B SES in the Western Atlantic?
• What frequency should be monitored for distress calls in Sea Area A3?
• What must be included when sending TELEX to a shoreside terminal in Japan?
• What channel should a false distress alert be canceled on VHF?
• Which modes could be selected to receive vessel traffic lists from high seas coast radio stations?
• What should you do after sending a false distress alert on MF?
• What are the directional characteristics of the Inmarsat-C SES antenna?
• What is the average length of time required for a TELEX sent by Inmarsat-C to be delivered to the addressee?
• Which Inmarsat Earth stations would be used for Inmarsat-B traffic if the vessel is off the Atlantic Coast of the United States and tracking the AOR-E satellite?
• Which statement related to SITOR (NBDP) communications is true?
• Which organization's regulations govern the assignment of call signs for maritime stations?
• A vessel operating in the Eastern Pacific would be operating in which NAVAREA?
• How is mutual interference on 518 kHz among NAVTEX stations avoided?
• What are Maritime Identification Digits commonly used for?
• Which of the following frequency bands would most likely provide reliable communications between two stations that are 100 miles (160 km) apart?
• Which of the following best describes Inmarsat-C operation?
• Which statement regarding GMDSS MF/HF Transceiver frequency set-up is true?
• Which action must be taken to ensure that incoming message traffic of all priority levels will be received through Inmarsat-C?
• What is the typical procedure to follow for receiving SafetyNETTM messages onboard?
• How many HF DSC Distress watch channels must a compulsory vessel maintain when underway?
• Which of the following systems is least susceptible to fading or static interference?
• Which of these can take place on an Inmarsat-C terminal that has synch with the NCS CC but has not yet performed a successful login?
• What defines the operational area designated as Sea Area A1 in GMDSS?
• At what point should the DIRTLX command be given to a coast station?
• What can be the visual observation of a condition whereby it may be possible to initiate a reliable Inmarsat TELEX transmission but a voice transmission may not be possible?
• What services are available through Enhanced Group Calls?
• Which Inmarsat Earth stations could a GMDSS Radio Operator select for routine Inmarsat-C traffic if the vessel is in the Sea of Japan and logged-in to the POR satellite?
• How many total frequencies are designated for DSC Distress alerting?
• What would be the best frequency choice for communicating with a shore station 75 miles away during mid-day?
• Which of the following would be a valid SELCAL for ARQ communications?
• When requesting a direct TELEX connection to an Inmarsat-B terminal, which command must be issued by the GMDSS operator?
• What does MID stand for in the context of MMSI?
• Which of the following best describes the elements of proper watchkeeping?
• How are paired SITOR (NBDP) frequencies typically utilized?
• For RF communications, "bandwidth" is best defined as?
• How should a detailed satellite distress message be transmitted to a RCC?
• What does a multi-frequency DSC alert ensure?
• Which of the following is not part of the GMDSS framework?
• What unique transmission characteristic does FEC rely on in SITOR communications?
• What is the primary purpose of the MF/HF DSC controller's scanning watch receiver?
• What is the correct formatting for sending communications to a fax machine number 516-229-4339 in Long Beach, CA?
• Which of the following would indicate an Inmarsat-B terminal?
• What does the first letter of the NAVTEX message header indicate?
• What is the emission designation for MF-HF voice signals?
• What is the correctly formatted Inmarsat-C address entry for sending communications to a shoreside TELEX terminal in the UK?
• Which Inmarsat Earth Stations could a vessel utilize for Inmarsat-B traffic if operating off the Pacific Coast of the United States and tracking the POR satellite?
• What is the swiftest way to notify a RCC of a distress situation aboard your vessel?
• The best way to test the Inmarsat-C terminal is:
• What must the operator select to set up the MF/HF Transceiver for a voice call?
• Which EGC messages require immediate action from the GMDSS Radio Operator?
• What is a defining characteristic of an ITU duplex channel frequency?
• What should the indicator lamps do when an Inmarsat-C system powers up?
• What should the watch officer do if they detect an unacknowledged DSC Distress alert?
• When placing a SSB MF/HF call to a Coast Station, what is the first step to ensure proper communication?
• What is the purpose of "parity" in SITOR (NBDP) communications?
• MF/HF Transceiver power levels should be set to which of the following?
• You receive a TELEX with the sender's I.D. of 436640927. What type of terminal sent this message to your vessel?
• What should a vessel ensure to receive MSI effectively through SafetyNETTM?
• Which statement is accurate regarding maintenance requirements for A3 ships under GMDSS?
• What is a valid automatic TELEX code for requesting a real-time connection to a shore-based TELEX terminal?
• Which of the following are properly formatted entries for two fax machines on vessels in the AOR-W?
• Which statement concerning GMDSS maintenance requirements is true?
• Which statement about GMDSS-equipped ships is false?
• A vessel operating in the Western Atlantic or along the East coast of North America would be located in which NAVAREA?
• Which of the following is a correctly formatted Inmarsat-B address for sending communications to a shoreside TELEX terminal number 440122 in the United Kingdom?
• What action should be taken upon receipt of a Distress alert transmitted by Digital Selective Calling (DSC)?
• At what point does a SART begin transmitting?
• What type of distress information is essential for SAR operations?
• Which statement is true regarding the process of Distress alerting under GMDSS?
• What type of station would be assigned the call sign WAB2174?
• Which frequency should a cancellation announcement follow a false distress alert on MF?
• Which dialing sequence is valid for initiating an operator assisted ship-to-shore contact through a European Earth Station while tracking the AOR-E satellite?
• Which of the following systems is most susceptible to fading or static interference?
• What periodic inspection is required for compliance with GMDSS regulations?
• Which of the following is the call sign for a U.S. Coast Guard coast station?
• Which statement about logkeeping requirements is false?
• What action should be taken before powering down an Inmarsat-C terminal?
• A vertical (whip) antenna has a radiation pattern best described by?
• What is the correct Radiotelephone Urgency signal?
• How is maximum coverage provided by satellites in the maritime satellite service?
• During an annual GMDSS station inspection, what may be required?
• Maritime Safety Information is promulgated via satellite through which system?
• Which statement regarding channel spacing and bandwidth is true?
• Which of the following statements concerning MMSI is false?
• When the GMDSS Radio Operator on watch hears "Securite" spoken three times, what type of information can he expect to receive?
• Which of the following statements concerning MMSI is true?
• Which of the following represents a valid 22-MHz ITU Channel?
• What does the acronym "DSC" stand for?
• How is a signal radiated from an Inmarsat-C system's antenna?
• A ship operating in Sea Area A-3 must meet which of the following maintenance provisions?
• What maintenance function may the holder of a GMDSS Radio Operator license perform, or supervise the performance of, on an Inmarsat-C SES?
• What is essential to include when composing a fax message for Inmarsat-C?
• You receive a TELEX with the sender's I.D. of 433863491. What type of terminal sent this message to your vessel?
• What best represents "On-scene" communications?
• How can rescue personnel detect that a SART is transmitting in the immediate vicinity?
• What statement is true regarding the control the operator can exercise over the NAVTEX receiver's operation?
• Which one of the following is a valid ship station SELCAL?
• What occurs immediately after phasing with a Coast Station on an available channel?
• What is the primary danger of improperly logging out?
• A MMSI 030346239 indicates what?
• What maintenance function may the holder of a GMDSS Radio Operator license perform, or supervise the performance of, on an Inmarsat-C SES?
• Which statement concerning Inmarsat-B and Inmarsat-C terminals is correct?
• If frequency listings end in either .0 or .5 kHz, what kind of emission is used?
• What does the term "Seelonce Mayday" refer to in distress communications?
• What is the correct process for sending text communications to an Internet destination using an Inmarsat-C unit?
• What service allows terrestrial information providers to send general messages to predefined groups of subscribers?
• How many MF frequencies are available for DSC Distress-related calls?
• Which of the following best describes a shipboard Inmarsat-C system?
• What constitutes proper watchkeeping in terms of distress alerts?
• What is the normal specific gravity of a fully charged lead acid battery cell?
• In ARQ communications, which action is least likely to cause a coast station to break the radio connection?
• A "Distress Hot Key" MF/HF DSC Distress alert will be transmitted on which frequency?
• What must a GMDSS Radio Operator ensure before initiating a TELEX call?
• What is GMDSS primarily concerned with?
• All country codes transmitted by MF/HF SITOR (NBDP) are preceded by which character(s)?
• Which number is appropriate for an Inmarsat-B terminal placing a TELEX call via Southbury to another ship logged-in to the AOR-E?
• What statement is true regarding the exchange between two parties engaged in SITOR (NBDP) communications?
• Which problem is least likely to cause issues tracking the satellite in an Inmarsat-C SES while at sea?
• Which situation typically uses the Voice designation "Securite"?
• What is a typical call sign for a large container ship under U.S. flag?
• If you are sending communications to a fax machine on a vessel's Inmarsat-B terminal in the AOR-E, which entry is formatted correctly?
• What type of watch must a compulsory Sea Area A1 vessel maintain?
• Which acronym refers to a communications system that does not use ARQ?
• Which frequency is often associated with maritime distress communications?
• Which situation is least likely to result in an inspection by foreign authorities?
• What frequency range is classified as Ultra High Frequency?
• Which of the following would indicate an Inmarsat-B terminal?
• What is your vessel’s obligation upon receiving a distress priority EGC message?
• What is one of the main purposes of GMDSS?
• Which address format is used for sending communications to a shoreside TELEX terminal in Canada?
• What does the SITOR (NBDP) acronym "BFEC" refer to?
• What keyboard entry would you use on an Inmarsat-B terminal to obtain a TELEX connection via Santa Paula to another ship that is located 300 miles west of San Francisco?
• In which mode is the lower sideband emphasized while transmitting?
• When engaging in voice communications via an Inmarsat-B or F77 terminal, what procedures are used?
• What should be done once the vessel is berthed and will not leave port for several weeks?
• When should an "ALL STATIONS" call be made after sending a false alert on 8 MHz?
• Through which coast radio station(s) may a U.S.-flag merchant vessel communicate?
• If you are tracking the POR satellite and want to communicate by voice using LES Santa Paula with another ship tracking the AOR-E satellite, what is the correct procedure?
• Which automatic TELEX command should a ship station use to address a weather report to the national weather authority?
• During the "Automatic Exchange of Answerbacks," what is the GMDSS operator's primary action?
• Over what system are Enhanced Group Calls transmitted?
• What is the transmitting range of most NAVTEX stations?
• Which of the following terms is defined as a back-up power source that provides power to radio installations for conducting Distress and Safety communications?
• Which frequencies are designated for "On-scene" communications in the Global Maritime Distress and Safety System?
• Which frequencies are designated as MF/HF DSC Distress watch frequencies?
• Which element is essential for a vessel using SafetyNETTM?
• What does the MID (Maritime Identification Digits) signify?
• What is the channel spacing for authorized F1B/J2B frequencies?
• Frequencies for receiving HF MSI (Maritime Safety Information) are:
• Which information determines if a NAVTEX message is to be rejected?
• What is the best procedure for calling another ship station using HF radiotelephone when signals are weak but readable?
• What should a GMDSS radio operator do in a distress situation when embarking in survival craft?
• Which sequence is associated with the 5 new Arctic Ocean NAVAREAs?
• Once ARQ communication with a coast station has been established, what typically happens next?
• Which mode of communication is possible through an Inmarsat-C SES?
• After power-up, what indicates a successful login on an Inmarsat-C terminal?
• What source provides updates on changes or additions to routine communications frequencies of a Commercial Radio Station?
• What does SafetyNETTM not provide?
• Which situation would most likely use the Safety priority?
• What is the recommended action after sending a false distress alert on VHF?
• Which statement is true regarding Distress communications under GMDSS?
• Which equipment maximizes the availability of receiving SafetyNETTM broadcasts?
• What step should be taken if a vessel must be abandoned due to a Distress situation?
• What is not an advantage of an AIS SART signal when compared to a radar-based SART signal?
• Which scenario is least likely to cause a coast station to break the phased radio connection during ARQ communications?
• What messages originate from registered information providers broadcast to the appropriate ocean region via a LES?
• Which reference should be consulted for proper GMDSS equipment setup?
• When Inmarsat-B and Inmarsat-C terminals are compared?
• Which satellite should be selected when operating in the Eastern Gulf of Mexico?
• How many digits are in the MID (Maritime Identification Digits)?
• Which HF SITOR (NBDP) mode would be selected to receive MSI broadcasts from high seas shore stations?
• What sequence of ARQ codes is used to request establishment of a landline, end radio link after traffic, and request connection for AMVER messages?
• Who is responsible for imposing "radio silence" during distress communications?
• Which of the following modes of communications are available when using Inmarsat-C?
• Which command signifies the end of a TELEX transmission in ARQ communications?
• Which number indicates a U.S. flag ship station?
• Which statement is true regarding the GMDSS operations?
• What is the correct response after a false distress alert is sent an 8 MHz frequency?
• When comparing Inmarsat-B and Inmarsat-C terminals, which statement is accurate?
• An incoming Distress call requesting J3E emission may automatically switch to which frequency?
• NAVAREAs referred to in NAVTEX are the same as used in:
• What is the correct format for sending TELEX communications to two vessels in the POR, with the first being Inmarsat-C and the second Inmarsat-B?
• Which channel is used for general traffic communications in GMDSS?
• Which statement regarding a multi-frequency MF/HF DSC Distress alert is false?
• How is normal working conditions restored on a SITOR (NBDP) frequency after radio silence?
• Which of these is not a primary purpose of the MF/HF DSC controller?
• Which is the correct format for sending TELEX communications to a shoreside TELEX terminal number 45992 in Taiwan?
• Which mechanism is employed in SITOR (NBDP) for error detection and correction?
• Which keystroke or character is necessary for requesting a direct TELEX call to a shore-based location during ARQ communications?
• What does the acronym SITOR (NBDP) stand for?
• Communications with an emission of F1B/J2B would typically have a channel spacing of?
• In radiotelephone communications, what is the correct sequence for SSB-Voice without carrier, USB-Voice with carrier, FM-Voice, and SITOR (NBDP) TELEX?
• Under which condition would you not relay a DSC Distress alert?
• Which of the following would indicate an Inmarsat-C terminal?
• What are the mandatory DSC watchkeeping bands/channels?
• What determines whether a NAVTEX receiver prints a particular type of message content?
• What type of information does the DSC MMSI number provide?
• Which LES should a GMDSS Radio Operator select to update a Distress alert message if the vessel is in the southern Pacific Ocean near the Dateline?
• What is the correct sequence of emissions for AM-Voice DSB, SSB-Voice without carrier, USB-Voice with carrier, and FM-Voice?
• Which satellite system is responsible for promulgating Maritime Safety Information?
• Which scenario is appropriate for using the Urgency priority?
• A vessel certified for service in Sea Area A-2 is required to maintain watch on:
• A vertical quarter wave antenna with a good ground connection will:
• Which system has the least effective radius of operation?
• What is the purpose of the second I.D. in an Inmarsat-B or F77 SES?
• What is the correct action to take after sending a distress alert via Inmarsat-C by mistake?
• Upon receipt of SafetyNETTM messages of the distress category, what action is required by the GMDSS Radio Operator?
• What signal is detected as originating from an AIS SART and how is the signal displayed?
• Which method provides the best indication for a GMDSS Radio Operator about establishing ARQ communication with a coast radio station?
• Which of the following describes a priority level less than Distress for radio communications?
• What type of emergency would prompt the use of the "Pan Pan" signal?
• Which of the following is correctly formatted for sending TELEX to an Inmarsat-B terminal in the AOR-W?
• What does a successful "SYNC" indication signify after power-up on an Inmarsat-C system?
• Which situation does not properly warrant Urgency priority?
• Which statement regarding SITOR (NBDP) communications is true?
• Which of the following describes a Group MMSI?
• Which frequency/mode is authorized for use internationally for Maritime Safety Information transmissions?
• What is a potential danger of automatic transceiver switching during a DSC call?
• What would not be a negative outcome of an Urgency DSC call that causes the transceiver to switch?
• DSC is primarily used to?
• Which address is correctly formatted for sending TELEX communications to a vessel in the POR?
• Where NAVTEX cannot be feasibly established, what system can be implemented for automated service to receive Maritime Safety Information (MSI)?
• Which of the following would indicate an F77 terminal?
• What is the correctly formatted Inmarsat-C address book entry for sending communications to a vessel in the AOR-E?
• What is the correct Inmarsat-C address book entry format for sending communications to a shoreside TELEX terminal number 776424 in Canada?
• Which of the following is NOT true regarding the COSPAS-SARSAT system?
• What is the frequency range for Super High Frequency?
• Which shipboard equipment can receive SafetyNETTM messages?
• Which statement concerning the testing of a compulsory radiotelephone station is false?
• How many frequencies are assigned specifically for HF MSI broadcasts?
• What is required for GMDSS vessels in Sea Areas A2, A3, or A4?
• Why is an antenna tuner required for MF-HF transmissions?
• The proper sequence of channel spacing from narrow to widest is?
• To set up the MF/HF Transceiver for a TELEX call, the operator must?
• What does the acronym "ECC" mean in a DSC message?
• What is the primary reason a ship would need to set a watch on VHF-FM Channel 16?
• Which of the following statements describes the carrier?
• What longitude corresponds to the IOR satellite location for Inmarsat-B/C communications?
• To send message traffic to an Internet address from an Inmarsat-C terminal, what action is necessary?
• What is the importance of maintaining a proper GMDSS radio station log?
• Which system is utilized for transmitting Enhanced Group Calls?
• Which of the following statements is true?
• What is a key factor in the decision-making process for urgency communications?
• ITU Duplex channels are defined as what?
• Which address format is correct for sending TELEX to an Inmarsat-B terminal located in the AOR-E?
• What modulation type keeps the amplitude constant while changing the frequency?
• How are NAVTEX broadcasts transmitted?
• Which mode of communications is NOT possible through an Inmarsat-C SES?
• Which of the following is not a priority for Safety communications?
• To receive all mandatory MSI using SafetyNETTM, what must a vessel do?
• Which of the following is a primary action in a Distress alert?
• Which of the following is true about SITOR (NBDP) ARQ mode?
• What would be vital to a GMDSS SAR situation in polar regions?
• When can routine communications resume after radio silence has been imposed?
• How can a SART's detection and effective range be maximized?
• Which longitude corresponds to the POR satellite location for Inmarsat-B/C communications?
• If a false distress alert is sent on MF, what action is required?
• What should a GMDSS Radio Operator do when SafetyNETTM Distress or Urgency messages are received by the vessel's EGC receiver?
• What statement best describes modulation?
• What is the purpose of the antenna coupler?
• Which statement about SITOR (NBDP) ARQ mode is true?
• A Distress Priority DSC call can specify what information?
• While underway, how frequently is the DSC controller required to be tested?
• Which sequence is valid for requesting an automatically dialed ship-ship call to an F77 terminal on a vessel tracking the IOR satellite?
• What type of calls can overburden the GMDSS systems during a Distress situation?
• What does the 'DTMF' tone stand for and its relevance in Inmarsat-C communications?
• How should a fax machine number (045) 334-5678 in Japan be formatted for Inmarsat-C?
• On what frequencies would the J3E emission be used for GMDSS Distress communications?
• What should NOT be included in a DSC Distress alert?
• To initiate an automatic ship-to-shore telephone contact through Southbury Earth Station, which dialing sequence is correct if the vessel is tracking the AOR-W satellite?
• Which of the following statements concerning EGC configuration is false?
• Which statement regarding a GMDSS equipped ship is false?
• Which statement regarding maintenance options for compulsory vessels in Sea Areas A1 and A2 is false?
• Which of the following is characteristic of J2B mode?
• Which of the following is not an example of a failure to log-out properly?
• What indication do personnel in a survival craft receive from the approach of SAR craft?
• Under GMDSS, a compulsory VHF-DSC radiotelephone installation must be tested at what minimum intervals at sea?
• What is typically the first step for a GMDSS Radio Operator when sending a Distress priority message via Inmarsat?
• A vessel with an 18-hour ETA to the Panama Canal on a voyage from Miami loses the ability to communicate via Inmarsat. The most likely cause is?
• At sea, all required equipment must be proven operational by what method?
• For general communications purposes, paired frequencies are primarily used with?
• Which statement best describes frequency modulation?
• What happens upon receiving a DSC Distress alert on 8414.5 kHz?
• Which frequency range corresponds to Very High Frequency?
• What does the term FEC mean in SITOR communications?
• What action should be taken on changing from one ocean region to another?
• The Urgency Priority applies to messages that concern:
• Which channel is used to initiate a Distress alert transmission?
• How many HF frequencies are available for DSC Distress related calls?
• What is typically the purpose of "Safety" communications?
• What type of distress communication must always be logged?
• What is the correct procedure to request medical assistance from Inmarsat via voice using an Inmarsat-B SES?
• How is a MSI (Maritime Safety Information) broadcast received by an Inmarsat-C SES engaged in communications?
• Communications with an emission of J3E would typically have a channel spacing of?
• Which scenario is least likely to prevent a SART's signal from being detected?
• When logging into the Inmarsat system using Inmarsat-C, it is necessary to:
• Which statement about using key letters in GMDSS Radio Logbooks is true?
• When operating in coastal waters, a GMDSS-equipped vessel must maintain what type of watch?
• Which situation necessitates the use of Urgency priority?
• Which command initiates requesting a specific communication during SITOR operations?
• What might be a reason for using the term "Urgency" instead of "Distress"?
• For ARQ communications with a Public Correspondence Coast Station, what is the correct sequence to send TELEX communications?
• Why is the automatic answerback request (WRU) first used by the LES after an Inmarsat-B TELEX call has been placed from a ship?
• How does the ship station confirm successful receipt of characters during SITOR ARQ?
• What system is appropriate for local storm warnings where it is inappropriate to alert all ships in the satellite coverage area?
• What does the acronym ATOR indicate about a Coast Station?
• How does the searching vessel's radar interrogate a survival craft SART?
• SafetyNETTM promulgates what type of information?
• How many sidebands are present in the J3E mode?
• What is the best method for a vessel to ensure compliance with the GMDSS requirements for establishing communication?
• In SITOR (NBDP) communications, what is true about FEC transmissions?
• What is the correctly formatted Inmarsat-C address book entry for a fax machine on an F77 terminal in the IOR?
• For "On-scene" communications, vessels in distress and SAR aircraft should use?
• Where can regulations regarding U.S.-flag vessels' GMDSS be found?
• What does the frequency deviation in FM indicate?
• If your vessel is in the IOR, which is a correctly formatted Inmarsat-C address book entry for sending communications to a shoreside TELEX terminal number in the Philippines?
• What does the term "ARQ" mean in SITOR (NBDP) operations?
• When does an incoming EGC alarm sound on an Inmarsat-C system?
• Which of these cannot happen when a paper model NAVTEX receiver runs out of paper?
• What is a potential danger of using the manufacturer's database to set up for operations using MF-HF ITU frequency assignments?
• In VHF communication, what term is used for the primary method of wave propagation?
• What is the correct entry for TELEX communications to a terminal in Germany?
• Which of the following conditions does not typically impair Inmarsat-B communications?
• What is the Radiotelephone Safety signal?
• What process must be followed after radio silence is lifted?
• What is a characteristic of all MMSI numbers?
• Which is the best method for determining the SITOR (NBDP) station to contact for sending a chargeable message?
• What is the typical usage of simplex frequencies for general communications?
• How is a NAVTEX receiver programmed to reject certain messages?
• How can vessel personnel detect the operation of a SART in its vicinity?
• How should a GMDSS operator respond if they receive a DSC call requesting a frequency that is not the standard?
• When your ship receives a Distress relay from a coast station on DSC frequency 2187.5 kHz, what should the watch officer do?
• Which of the following best describes the full range of services provided by the Inmarsat-C Satellite system?
• After sending a false distress alert on 12577.0 kHz, what action is appropriate?
• What is the best description of the data blocks used in SITOR (NBDP) communications?
• What is the primary function of Digital Selective Calling in GMDSS?
• What radar display changes indicate the correct approach to a SART?
• For RF communications, "modulation" is best defined as?
• Where can detailed distress situation report message formats be found?
• When Inmarsat-B and Inmarsat-C terminals are compared?
• What type of information is promulgated by the international SafetyNETTM?
• Which of the following statements concerning MMSI is true?
• What number will a ship station use to identify itself using SITOR (NBDP)?
• Which SELCAL number type is typically used by a ship station?
• How should a ship respond if a Distress alert is received on the 12 MHz DSC frequency?
• What is the most common type of antenna for GMDSS MF-HF?
• What is the requirement regarding log archival by the station licensee if there are no distress entries?
• How many frequencies are available under GMDSS for DSC Distress-related calls?
• What is the requirement for emergency and reserve power in GMDSS radio installations?
• In an AM broadcast signal using voice, how is the carrier modified?
• If the Distress Alarm sounds and the screen no longer displays the distress particulars, what should be done?
• Which satellite is generally selected for use off the eastern shore of the United States?
• A vessel certified for service in Sea Area A3 is required to maintain a watch on:
• Which statement about GMDSS MF/HF Transceiver frequency set-up is accurate?
• In a Distress situation where immediate help is needed but the vessel is not sinking, what should a GMDSS operator do?
• When placing a TELEX call to a Coast Station, what is a critical step to follow?
• What is the initial procedure for establishing HF radiotelephone communications between a vessel and a public correspondence station?
• If a Distress relay is received from a coast station on DSC VHF channel 70, what action should be taken?
• Which statement best describes amplitude modulation?
• What is the correct dialing sequence for a vessel tracking the AOR-W satellite to send a FAX to a U.S. destination using Southbury LES with an Inmarsat-B terminal?
• Which statement concerning Inmarsat-B and Inmarsat-C terminals is correct?
• Upon receiving a Distress alert, what is the first action you should take?
• Which of the following systems is least susceptible to atmospheric disturbances?
• Which of the following would indicate an Inmarsat-C terminal?
• Which statement is true regarding LES codes in Inmarsat systems?
• In ARQ, what action is taken by the information sending station if the parity check fails?
• What message does the term "Securite" primarily convey?
• What should a vessel do if it receives a false DSC alarm?
• What longitude corresponds to the AOR-E satellite for Inmarsat-B/C communications?
• What is the primary purpose of a ship's call sign?
• Which element is NOT considered a part of the GMDSS distress alerting system?
• What kind of vessels are mandated to have GMDSS maintenance options?
• Which of the following is the primary frequency that is used exclusively for NAVTEX broadcasts internationally?
• NAVTEX broadcasts are sent:
• Which frequency should a ship use to monitor for DSC alerts?
• Which of the following has NOT been designated for GMDSS "On-scene" or SAR communications?
• What is the purpose of a Distress call in the GMDSS system?
• When do NAVTEX broadcasts typically achieve maximum transmitting range?
• What sequence of ARQ codes indicates that a shore station is awaiting instructions from the vessel and the vessel requests a live connection to a land telex number?
• In which scenario should the GMDSS Radio Operator remain logged into the Inmarsat system?
• What is true regarding HF SITOR (NBDP) under GMDSS?
• How is information applied to the carrier in FM communications?
• Upon receiving a DSC Distress call, if the transceiver displays Transmit = 4207.5 kHz and Receive = 4207.5 kHz, what does this likely indicate?
• What is true regarding SITOR (NBDP) ARQ mode?
• Which of the following would indicate an Inmarsat-C terminal?
• Which statement is true regarding the use of Inmarsat-C for sending emails?
• Which of the following is correct regarding entries in the GMDSS Radio Log?
• Which situation would utilize the Safety priority?
• What is the primary frequency range for terrestrial communications using skywave propagation?
• Which kind of broadcasts are not available through SafetyNETTM?
• How can a GMDSS operator determine the best frequency band for a SITOR transmission?
• Which modulation technique uses frequency variations to encode information?
• Which messages are mandatory to be received and should not typically be rejected or disabled by the operator of a NAVTEX receiver?
• Which system is most likely to be affected by atmospheric disturbances?
• What best defines the SITOR (NBDP) acronym "ARQ"?
• What is the frequency range classified as Medium Frequency?
• Under what condition should a distress alert by a station on behalf of another vessel not occur?
• A valid MMSI number for a DSC call to a specific group of vessels is:
• If the Watch Officer hears "PAN PAN" spoken three times, what does it signify?
• What keyboard entry for an automatic TELEX connection to 882419 in Nebraska, USA, would you use if the TELEX country code is 230?
• What means are used to prevent the reception of unwanted broadcasts by vessels utilizing the NAVTEX system?
• What action should a vessel take upon receiving a Distress alert?
• What would the number 1090 indicate?
• How often must a compulsory vessel's GMDSS radio station be inspected?
• In SITOR (NBDP) communication, what is one aspect of how ARQ works?
• A vessel loses Inmarsat-B SES operation after a large course change. Which of the following could most likely cause this?
• Which requirement applies to all vessels over 300 gross tons operating within range of a MF-DSC equipped shore station?
• What statement is true regarding Inmarsat-C?
• What is the equipment arrangement that provides the maximum availability for reception of MSI broadcasts when using Inmarsat-C for TELEX communications?
• What frequency range is designated as High Frequency?
• In a DSC message, what does the acronym "EOS" stand for?
• Which frequencies and modes are allocated for Distress alerting in GMDSS?
• What must be done if a Distress alert is received?
• What is the requirement for maintaining a watch on VHF Ch-16?
• If your vessel is in the POR, what is the correct format for sending TELEX to terminal number 42267 in Ecuador?
• Which is the correct procedure for calling a coast radio station using HF radiotelephone?
• What is the channel spacing for MF-HF voice frequencies?
• Which functions may the holder of a GMDSS Radio Operator License not perform on Inmarsat-C equipment?
• Which of the following would indicate an F77 terminal?
• How frequently should LES codes be updated when the vessel is transiting different SAR jurisdictions?
• A Coast Station described as ATOR typically provides which type of service?
• The purpose of ITU channel spacing is?
• Which frequency band is generally used for international maritime communications?
• A vessel, before transiting the Panama Canal, on a voyage from San Diego to Miami, loses the ability to communicate via Inmarsat. The most likely cause is:
• Which Inmarsat Earth Stations could a vessel utilize for Inmarsat-C traffic if operating off the Atlantic Coast of the United States and synched to the AOR-W satellite?
• Which of the following would indicate an F77 terminal?
• What system can provide an automated service in coastal waters where it may not be feasible to establish NAVTEX?
• Which statement is NOT true regarding the SART?
• What is the signal transmitted in H3E mode?
• A DSC call is received from a station with a MMSI number of 003669991. What type of station made the call?
• A SART's signal cannot be detected:
• Which key is used to indicate the end of a selection in a TELEX call via an Inmarsat-B SES?
• What is the primary function of FEC in communication systems?
• What is true of SITOR (NBDP) Mode B (FEC) regarding static crashes?
• What longitude corresponds to the AOR-W satellite for Inmarsat-B/C communications?
• What does the term "ITU Channel 1216" define?
• Which of the following would indicate an Inmarsat-C terminal?
• What is the initial frequency for a MF/HF console DSC Distress alert transmission?
• In the context of satellite communication, what does LES stand for?
• A ship in Sea Area A-1 meets maintenance requirements by having which provision?
• To request TELEX communications with another vessel, the GMDSS operator should:
• How long must a radio log be kept on board before being sent to the shoreside licensee?
• What is the primary function of an NCS?
• In terms of SITOR (NBDP) operations, which is the most critical factor for successful communications?
• Which of the following numbers indicates a ship station MMSI?