Deck : General Navigation - 513/2138
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| The principal advantage of NAVTEX radio warnings is that __________. |
| A) they cover a broad spectrum of the radio band allowing reception on almost any type of receiver |
| B) they can be used by mariners who do not know Morse code |
| C) information on a given topic is only broadcast at specified times |
| D) only an ordinary FM radio is necessary to receive these warnings |
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