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QKP
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Which pattern of search is being followed?
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The search pattern is …
1) parallel sweep.
2) square search.
3) creeping line ahead.
4) track crawl.
5) contour search.
6) combined search by aircraft and ship.
7) ... (specify).
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Aeronautical Code signals
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QLB
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Will you monitor ... station and report regarding range, quality, etc.?
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I have monitored ... station and report (briefly) as follows ...
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Aeronautical Code signals
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QLH
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Will you use simultaneous keying on ... frequency and ... frequency?
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I will now key simultaneously on ... frequency and ... frequency.
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Aeronautical Code signals
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QLV
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Is the ... radio facility still required?
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The ... radio facility is still required.
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Aeronautical Code signals
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QMH
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Shift to transmit and receive on ... kHz (or ... MHz.); if communication is not established within 5 minutes, revert to present frequency.
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Aeronautical Code signals
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QMI
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Report the vertical distribution of cloud [at ... (position or zone)] as observed from your aircraft.
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The vertical distribution of cloud as observed from my aircraft at ... hours at ... (position or zone) is :
lowest layer observed* ... eights (... type) with base of ... (figures and units) and tops of ... (figures and units)
[*and similarly in sequence for each of the layers observed.]
height above ... (datum).
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Aeronautical Code signals
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QMU
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What is the surface temperature at ... (place) and what is the dew point temperature at that place?
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The surface temperature at ... (place) at ... hours is ... degrees and the dew point temperature at that time and place is ... degrees.
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Aeronautical Code signals
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QMW
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At ... (position or zone) what is (are) the flight level(s)/altitude(s) ... of the zero Celsius isotherm(s)?
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At ... (position or zone) the zero Celsius isotherm(s) is (are) at flight level(s)/altitude(s) ...
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Aeronautical Code signals
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QMZ
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Have you any amendments to the flight forecast in respect of section of route yet to be traversed?
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The following amendment(s) should be made to the flight forecast …
[If no amendments, signal QMZ NIL]
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Aeronautical Code signals
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QNH
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What should I set on the subscale of my altimeter so that the instrument would indicate its elevation if my aircraft were on the ground at your station?
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If you set the subscale of your altimeter to read ... millibars, the instrument would indicate its elevation if your aircraft were on the ground at my station at ... hours.
Note.- When the setting is given in hundredths of inch the AbbreviationINS is used to identify the units.
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Aeronautical Code signals
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