MF-HF Equip. and Comms:
MF-HF FEC Operation-2:
If the vessel is within range of NAVTEX broadcasts and both the Inmarsat-C and the NAVTEX receiver are inoperative the GMDSS operator should:
-
Select 518 kHz ARQ TELEX on the MF/HF console to receive MSI.
-
Request repairs of the Sat-C system and wait until within range of NAVTEX.
-
Correct AnswerSelect 518 kHz FEC TELEX on the MF/HF console to receive MSI.
-
Select an HF MSI frequency and ARQ TELEX mode to receive MSI.
Tags: none
If the vessel is beyond range of NAVTEX broadcasts and the Inmarsat-C system fails, the GMDSS operator must:
-
Select 518 kHz ARQ TELEX on the MF/HF console to receive MSI.
-
Request repairs of the Sat-C system and wait until within range of NAVTEX.
-
Select 518 kHz FEC TELEX on the MF/HF console to receive MSI.
-
Correct AnswerSelect an HF MSI frequency and FEC TELEX mode to receive MSI.
Tags: none
If the vessel is experiencing atmospheric interference with NAVTEX broadcasts, especially in the tropics, the GMDSS operator should:
-
Correct AnswerSelect one of the 8 HF MSI frequencies and set-up the transceiver in FEC TELEX mode.
-
Select one of the 6 HF MSI frequencies and set-up the transceiver in ARQ TELEX mode.
-
Select one of the 6 MF MSI frequencies and set-up the transceiver in FEC TELEX mode.
-
Select the MF MSI frequency dedicated to tropical MSI and set-up the transceiver in FEC TELEX mode.
Tags: none
Why must the GMDSS operator be able to set-up FEC & ARQ modes and differentiate between them?
-
The proper mode of SFEC must be selected for reception of HF MSI and ARQ selected for initial follow-on TELEX communications in a Distress situation
-
Correct AnswerThe proper mode must be selected for follow-on TELEX communications in a Distress situation and for the reception of HF MSI.
-
The ARQ TELEX mode must be selected for follow-on TELEX communications in a Distress situation and the BFEC TELEX mode selected for reception of HF MSI.
-
The BFEC TELEX mode must be selected for follow-on TELEX communications in a Distress situation and the ARQ TELEX mode selected for reception of HF MSI.
Tags: none
BFEC SITOR (NBDP) transmissions might be used to?
-
Receive Coast station traffic lists, NAVTEX and VHF MSI broadcasts.
-
Correct AnswerSend and receive Distress TELEX communications and receive HF MSI or NAVTEX.
-
Receive weather messages or download ARQ Coast Station traffic lists.
-
Receive weather messages and send vessel weather OBS messages.
Tags: none
FEC SITOR (NBDP) transmissions are normally used to?
-
Receive Coast station traffic lists, NAVTEX and VHF MSI broadcasts.
-
Receive weather messages, Coast Station traffic lists and company messages.
-
Correct AnswerReceive HF MSI and NAVTEX.
-
Receive company communications sent through coast stations.
Tags: none
View Privacy Policy | Get help with HamStudy.org™