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QCB
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Delay is being caused by …
1) your transmitting out of turn.
2) your slowness in answering.
3) lack of your reply to my …
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Aeronautical Code signals
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QCE
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When may I expect approach clearance?
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Expect approach clearance at ... hours.
No delay expected.
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Aeronautical Code signals
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QCF
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Delay indefinite. Expect approach clearance not later than ... hours.
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Aeronautical Code signals
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QCH
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May I taxi to ... (place)?
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Cleared to taxi to ... (place).
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Aeronautical Code signals
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QCI
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Make a 360-degree turn immediately (turning to the ...).
I am making a 360-degree turn immediately (turning to the ...).
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Aeronautical Code signals
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QCS
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My reception on ... frequency has broken down.
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Aeronautical Code signals
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QCX
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What is your full call sign?
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My full call sign is …
Use your full call sign until further notice.
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Aeronautical Code signals
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QCY
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I am working on a trailing aerial.
Work on a trailing aerial.
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Aeronautical Code signals
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QDB
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Have you sent message ... to ... ?
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I have sent message ... to ...
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Aeronautical Code signals
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QDF
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What is your D-Value at ... (position)?
What is the D-Value at ... (place or position) (at ... hours) for the ... millibar level?
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My D-Value at ... (position) at ... (figures and units) height above the 1013.2 millibars datum is ... (D-Value figures and units) ... (specify plus or minus).
The D-Value at ... (place or position) at ... hours for the ... millibar level is (D-Value figures and units) ... (specify plus or minus).
Note.- When the true altitude (radio altitude) is greater than the pressure altitude PS (Plus) is used and when it is less MS (Minus) is used.
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Aeronautical Code signals
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