Subelement B: MF-HF-DSC-SITOR (NBDP) Equip. & Operations— Topic :
Question 20B6
Element 9 (GMDSS Maintainer)What are the characters that are transmitted to terminate a direct TELEX connection in SITOR (NBDP) operations?
Explanation
In SITOR (NBDP) operations, the specific characters transmitted to terminate a direct TELEX connection are "KKKK". This sequence is a standardized procedural signal within the SITOR protocol. It serves as an unambiguous command to the receiving station and the automated system to indicate that the transmission is complete and the communication link should be disconnected.
Other options are incorrect because they are not recognized as termination signals within the SITOR protocol. "...." is not a command, "END+" is not a standard SITOR sequence, and while "EOM" (End of Message) signifies the content's conclusion, "KKKK" is the specific instruction to actually tear down the technical connection. These defined procedural signals ensure reliable and orderly management of the radio link.
Related Questions
20B4 Which of the following keystrokes or characters follows most commands in ARQ communications when working an automated Coast Station?20B5 Which characters are sent by the ship station to indicate a desire to send a message via a direct connection to a shoreside TELEX subscriber?21B1 If a vessel is within range of NAVTEX broadcasts and both the Inmarsat-C and the NAVTEX receiver are inoperative the GMDSS operator should:21B2 The sequence ARQ, FEC, SFEC best corresponds to which of the following sequences?21B3 Selective FEC communications (SFEC) are employed when: