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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.
PROGRAMMABLE INDICATOR DATA PROCESSOR−
The PIDP is a modification to the
AN/TPX-42 interrogator system currently installed
in fixed RAPCONs. The PIDP detects, tracks, and
predicts secondary radar aircraft targets. These are
displayed by means of computer-generated symbols
and alphanumeric characters depicting flight identification,
aircraft altitude, ground speed, and flight plan
data. Although primary radar targets are not tracked,
they are displayed coincident with the secondary
radar targets as well as with the other symbols and
alphanumerics. The system has the capability of
interfacing with ARTCCs.
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 TIME−
Each 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.
8/5/04 Pilot/Controller Glossary
PCG Q−1
Q
Q ROUTE− ‘Q’ is the designator assigned to
published RNAV routes used by the United States.
QUEUING−
(See STAGING/QUEUING.)
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.
QUICK LOOK− A feature of NAS Stage A and
ARTS which provides the controller the capability to
display full data blocks of tracked aircraft from other
control positions.

2/19/04 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.)
　
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