7-A-084: MF-HF: Voice Operations: Calling a Coast Station
7-84J1:
When placing a SSB MF/HF call to a Coast Station, you should always:
Make sure the frequency is not occupied.
Choose the closest station to ensure a quick connection.
Tune the transmitter on another frequency.
Wait until the coast station sends his traffic list.
7-84J2:
How are high seas (HF) radiotelephone communications initially established between a vessel and a public correspondence station?
The vessel calls and establishes voice contact with the public correspondence station on a channel that the station is known to monitor, and the two stations then proceed with their business.
The vessel listens for "free signals" and calls the public correspondence station on the NBDP calling channel with the strongest marker signal.
The vessel calls the public correspondence station on VHF Channel 16, and the two stations then switch to the working channel.
Public Correspondence Stations operate NBDP only.
7-84J3:
What is the best procedure for calling another ship station using HF radiotelephone when the signals are weak but readable?
On a properly selected ITU channel, give the call sign of the ship being called three times using the ICAO alphabet, then "this is" followed by the call sign of the ship initiating the call three times, using the ICAO alphabet, and ending with "over."
Give the name of the ship being called three times, and the words "this is" followed by the name of the ship initiating the call three times, and ending with "over."
Instruct the nearest public correspondence station to add the desired ship's call sign to the station's traffic list.
Notify the local vessel traffic service control station of your intention to contact a specific vessel, and request the VTS operator place the call on channel 22A.
7-84J4:
What is the correct procedure for calling a coast radio station using HF radiotelephone?
On a correct ITU channel, give the call sign of the coast radio station three times using the ICAO alphabet, the words "this is", followed by the ship’s call sign three times using the ICAO alphabet and ending with "over".
On a properly selected ITU channel, give the name of the coast radio station being called three times, and the words "this is" followed by the name of the ship initiating the call three times, and ending with "over".
Contact the nearest U.S.C.G. station to add the desired ship's call sign to the station's traffic list.
Request the VTS operator place the call on channel 22A.
7-84J5:
Through which coast radio station(s) may a U.S.-flag merchant vessel communicate?
Any coast radio station in the world that is licensed to provide such communications.
Any coast radio station in the world that is licensed to provide such communications, but prior authorization must be obtained for a U.S.-flag merchant vessel to communicate through a non-U.S. station.
The U.S. Coast Guard coordinates the communications and assigns the working channel.
U.S. flag ships are licensed to communicate only with U.S. coast radio stations.
7-84J6:
What is the best source of information to find changes or additions to the routine communications frequencies of a Commercial Radio Station?
ITU List of Coast Stations Part IV.
GMDSS Master Plan of Shore-Based Facilities.
FCC Part 80
ITU List of Ship Stations Part VII.
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Color key:
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● = Unseen
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● = Weak
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● = Review
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● = Learned
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● = Incorrect answer
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