When an aircraft station is unable to establish communication due to receiver failure, the following procedure should be undertaken:4
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The frequency used for the first transmission of a 'MAYDAY' call shall be:4
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An aircraft in state of emergency shall squawk:4
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An urgency message shall be preceded by the radiotelephony urgency signal:4
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Which phenomena will normally influence the reception of VHF transmission ?4
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Select the correct phoenetic letter code for HB-FRO:4
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What does the term 'blind transmission' mean?4
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What does the abbreviation 'FIR' mean?4
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What is the Q-code for 'magnetic heading to the station (no wind)?4
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What does QDR mean?4
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