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inbound” is normally used by ATC as a position
report for separation purposes.
(See FINAL APPROACH COURSE.)
(See PROCEDURE TURN.)
(See SEGMENTS OF AN INSTRUMENT
APPROACH PROCEDURE.)
PROFILE DESCENT- An uninterrupted descent
(except where level flight is required for speed
adjustment; e.g., 250 knots at 10,000 feet MSL) from
cruising altitude/level to interception of a glideslope
or to a minimum altitude specified for the initial or
intermediate approach segment of a nonprecision
instrument approach. The profile descent normally
terminates at the approach gate or where the
glideslope or other appropriate minimum altitude is
intercepted.
PROGRESS REPORT-
(See POSITION REPORT.)
PROGRESSIVE TAXI- Precise taxi instructions
given to a pilot unfamiliar with the airport or issued
in stages as the aircraft proceeds along the taxi route.
PROHIBITED AREA-
(See SPECIAL USE AIRSPACE.)
(See ICAO term PROHIBITED AREA.)
PROHIBITED AREA [ICAO]- An airspace of
defined dimensions, above the land areas or territorial
waters of a State, within which the flight of aircraft
is prohibited.
PROPOSED BOUNDARY CROSSING TIMEEach
center has a PBCT parameter for each internal
airport. Proposed internal flight plans are transmitted
to the adjacent center if the flight time along the
proposed route from the departure airport to the
center boundary is less than or equal to the value of
PBCT or if airport adaptation specifies transmission
regardless of PBCT.
PROPOSED DEPARTURE TIME- The time that the
aircraft expects to become airborne.
PROTECTED AIRSPACE- The airspace on either
side of an oceanic route/track that is equal to one‐half
the lateral separation minimum except where
reduction of protected airspace has been authorized.
PT-
(See PROCEDURE TURN.)
PTP-
(See POINT-TO-POINT.)
PTS-
(See POLAR TRACK STRUCTURE.)
PUBLISHED ROUTE- A route for which an IFR
altitude has been established and published; e.g.,
Federal Airways, Jet Routes, Area Navigation
Routes, Specified Direct Routes.
2/14/08 Pilot/Controller Glossary
PCG Q-1
Q
Q ROUTE- `Q' is the designator assigned to
published RNAV routes used by the United States.
QNE- The barometric pressure used for the standard
altimeter setting (29.92 inches Hg.).
QNH- The barometric pressure as reported by a
particular station.
QUADRANT- A quarter part of a circle, centered on
a NAVAID, oriented clockwise from magnetic north
as follows: NE quadrant 000‐089, SE quadrant
090‐179, SW quadrant 180‐269, NW quadrant
270‐359.
QUEUING-
(See STAGING/QUEUING.)
QUICK LOOK- A feature of the EAS and ARTS
which provides the controller the capability to
display full data blocks of tracked aircraft from other
control positions.

2/14/08 Pilot/Controller Glossary
PCG R-1
R
RAA-
(See REMOTE AIRPORT ADVISORY.)
RADAR- A device which, by measuring the time
interval between transmission and reception of radio
pulses and correlating the angular orientation of the
radiated antenna beam or beams in azimuth and/or
elevation, provides information on range, azimuth,
and/or elevation of objects in the path of the
transmitted pulses.
a. Primary Radar- A radar system in which a
minute portion of a radio pulse transmitted from a site
is reflected by an object and then received back at that
site for processing and display at an air traffic control
facility.
b. Secondary Radar/Radar Beacon (ATCRBS)- A
radar system in which the object to be detected is
fitted with cooperative equipment in the form of a
radio receiver/transmitter (transponder). Radar
pulses transmitted from the searching transmitter/receiver
(interrogator) site are received in the
cooperative equipment and used to trigger a
distinctive transmission from the transponder. This
reply transmission, rather than a reflected signal, is
then received back at the transmitter/receiver site for
processing and display at an air traffic control facility.
(See INTERROGATOR.)
(See TRANSPONDER.)
(See ICAO term RADAR.)
(Refer to AIM.)
RADAR [ICAO]- A radio detection device which
provides information on range, azimuth and/or
elevation of objects.
a. Primary Radar- Radar system which uses
reflected radio signals.
b. Secondary Radar- Radar system wherein a
radio signal transmitted from a radar station initiates
the transmission of a radio signal from another
station.
RADAR ADVISORY- The provision of advice and
information based on radar observations.
　
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