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Subelement H
Maritime Safety Information (M.S.I.):
Section 52
Navtex-2: Programming:
How is a NAVTEX receiver programmed to reject certain messages?
  • The transmitting station's two-digit identification can be entered to de-select reception of its broadcasts.
  • Correct Answer
    By choosing a message category's single letter (A-Z) identifier and then deselecting or deactivating.
  • By entering the SELCAL of the NAVTEX transmitting station.
  • By pressing "00" in the transmitter's ID block.

How is a NAVTEX receiver programmed to reject certain messages?

(B). By choosing a message category's single letter (A-Z) identifier and then deselecting or deactivating.

NSR Marine User Manual in pdf format
NAVTEX RECEIVER NVX-3000

FCC id GMDSS Tri-Channel NAVTEX receiver user manual NAV-7 NAVTEX Receiver User Manual 35-821N Iss1 NAV-7 Orolia

FCC id AE1800 Dual Frequency Navtex Receiver User Manual AE-1800 REF Manual-Draft Morcom

Last edited by markadlerdallas. Register to edit

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How can reception of certain NAVTEX broadcasts be prevented?
  • Stations are limited to daytime operation only.
  • Coordinating reception with published broadcast schedules.
  • Correct Answer
    The receiver can be programmed to reject certain stations and message categories.
  • Automatic receiver desensitization during night hours.

How can reception of certain NAVTEX broadcasts be prevented?

(C). The receiver can be programmed to reject certain stations and message categories.

For review of NAVTEX operations manuals, please see:

NSR Marine User Manual in pdf format
NAVTEX RECEIVER NVX-3000

FCC id GMDSS Tri-Channel NAVTEX receiver user manual NAV-7 NAVTEX Receiver User Manual 35-821N Iss1 NAV-7 Orolia

FCC id AE1800 Dual Frequency Navtex Receiver User Manual AE-1800 REF Manual-Draft Morcom

Last edited by markadlerdallas. Register to edit

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Which of the following statements is true?
  • No NAVTEX receiver can be programmed to reject category A, B, D and L messages since they are mandatory to be received via NAVTEX.
  • Upon entering a new NAVTEX station's broadcast range, the GMDSS Radio Operator enters the station's SELCAL number.
  • The GMDSS Radio Operator can select the "None" option in the message category menu.
  • Correct Answer
    A GMDSS Radio Operator may choose to program certain NAVTEX receivers to reject category A, B, D and L messages if they are being received by another MSI system.

Which of the following statements is true?

(D). A GMDSS Radio Operator may choose to program certain NAVTEX receivers to reject category A, B, D and L messages if they are being received by another MSI system.

The wrong answers have one item that is wrong.

For review of NAVTEX operations manuals, please see:

NSR Marine User Manual in pdf format
NAVTEX RECEIVER NVX-3000

FCC id GMDSS Tri-Channel NAVTEX receiver user manual NAV-7 NAVTEX Receiver User Manual 35-821N Iss1 NAV-7 Orolia

FCC id AE1800 Dual Frequency Navtex Receiver User Manual AE-1800 REF Manual-Draft Morcom

Last edited by markadlerdallas. Register to edit

Tags: none

What means are used to prevent the reception of unwanted broadcasts by vessels utilizing the NAVTEX system?
  • Correct Answer
    Programming the receiver to reject certain stations and message categories.
  • Operating the receiver only during daytime hours.
  • Coordinating reception with published broadcast schedules.
  • Automatic receiver de-sensitization during night hours.

What means are used to prevent the reception of unwanted broadcasts by vessels utilizing the NAVTEX system?

(A). Programming the receiver to reject certain stations and message categories.

The wrong answers incorrectly use the fact that the radio propagation scope increases at night due to changes in the atmospheric layers.

For review of NAVTEX operations manuals, please see:

NSR Marine User Manual in pdf format
NAVTEX RECEIVER NVX-3000

FCC id GMDSS Tri-Channel NAVTEX receiver user manual NAV-7 NAVTEX Receiver User Manual 35-821N Iss1 NAV-7 Orolia

FCC id AE1800 Dual Frequency Navtex Receiver User Manual AE-1800 REF Manual-Draft Morcom

Last edited by markadlerdallas. Register to edit

Tags: none

What statement is true regarding the control the operator can exercise over the NAVTEX receiver's operation?
  • The operator can set the unit to automatically reject any and all categories of messages if the ship desires to not receive them.
  • Upon entering a coastal area for the first time, the operator enters code KK to indicate "ready to receive NAVTEX".
  • To reduce the number of messages, the operator can select code 00 to indicate "not in coastal passage".
  • Correct Answer
    The operator can set most units to reject all messages except navigation, meteorological warnings, and search and rescue messages. If the unit will reject such messages it may be unsafe to do so.

What statement is true regarding the control the operator can exercise over the NAVTEX receiver's operation?

(D). The operator can set most units to reject all messages except navigation, meteorological warnings, and search and rescue messages. If the unit will reject such messages it may be unsafe to do so.

For review of NAVTEX operations manuals, please see:

NSR Marine User Manual in pdf format
NAVTEX RECEIVER NVX-3000

FCC id GMDSS Tri-Channel NAVTEX receiver user manual NAV-7 NAVTEX Receiver User Manual 35-821N Iss1 NAV-7 Orolia

FCC id AE1800 Dual Frequency Navtex Receiver User Manual AE-1800 REF Manual-Draft Morcom

Last edited by markadlerdallas. Register to edit

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Which messages are mandatory to be received and should not typically be rejected or disabled by the operator of a NAVTEX receiver?
  • Correct Answer
    Navigational warnings, meteorological warnings, SAR information.
  • Meteorological warnings, SAR information, Pilot Service Messages.
  • Meteorological warnings, meteorological forecasts, navigational warnings.
  • SAR information, navigational warnings, ice reports.

Which messages are mandatory to be received and should not typically be rejected or disabled by the operator of a NAVTEX receiver?

(A). Navigational warnings, meteorological warnings, SAR information.

The wrong answers have one item that is wrong.

For review of NAVTEX operations manuals, please see:

NSR Marine User Manual in pdf format
NAVTEX RECEIVER NVX-3000

FCC id GMDSS Tri-Channel NAVTEX receiver user manual NAV-7 NAVTEX Receiver User Manual 35-821N Iss1 NAV-7 Orolia

FCC id AE1800 Dual Frequency Navtex Receiver User Manual AE-1800 REF Manual-Draft Morcom

Last edited by markadlerdallas. Register to edit

Tags: none

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