Pilot/Controller Glossary

4/3/14

PCG M−6

System (ATCRBS). Mode A (military Mode 3) and

Mode C (altitude reporting) are used in air traffic

control.

(See INTERROGATOR.)
(See RADAR.)
(See TRANSPONDER.)
(See ICAO term MODE.)
(Refer to AIM.)

MODE (SSR MODE) [ICAO]− The letter or number

assigned to a specific pulse spacing of the

interrogation signals transmitted by an interrogator.

There are 4 modes, A, B, C and D specified in Annex

10, corresponding to four different interrogation

pulse spacings.
MODE C INTRUDER ALERT− A function of

certain air traffic control automated systems designed

to alert radar controllers to existing or pending

situations between a tracked target (known IFR or

VFR aircraft) and an untracked target (unknown IFR

or VFR aircraft) that requires immediate attention/

action.

(See CONFLICT ALERT.)

MONITOR− (When used with communication

transfer) listen on a specific frequency and stand by

for instructions. Under normal circumstances do not

establish communications.
MONITOR ALERT (MA)− A function of the TFMS

that provides traffic management personnel with a

tool for predicting potential capacity problems in

individual operational sectors. The MA is an

indication that traffic management personnel need to

analyze a particular sector for actual activity and to

determine the required action(s), if any, needed to

control the demand.
MONITOR ALERT PARAMETER (MAP)− The

number designated for use in monitor alert

processing by the TFMS. The MAP is designated for

each operational sector for increments of 15 minutes.
MOSAIC/MULTI−SENSOR MODE− Accepts posi-

tional data from multiple radar or ADS−B sites.

Targets are displayed from a single source within a

radar sort box according to the hierarchy of the

sources assigned.
MOVEMENT AREA− The runways, taxiways, and

other areas of an airport/heliport which are utilized

for taxiing/hover taxiing, air taxiing, takeoff, and

landing of aircraft, exclusive of loading ramps and

parking areas. At those airports/heliports with a

tower, specific approval for entry onto the movement

area must be obtained from ATC.

(See ICAO term MOVEMENT AREA.)

MOVEMENT AREA [ICAO]− That part of an

aerodrome to be used for the takeoff, landing and

taxiing of aircraft, consisting of the maneuvering area

and the apron(s).
MOVING TARGET INDICATOR− An electronic

device which will permit radar scope presentation

only from targets which are in motion. A partial

remedy for ground clutter.
MRA−

(See MINIMUM RECEPTION ALTITUDE.)

MSA−

(See MINIMUM SAFE ALTITUDE.)

MSAW−

(See MINIMUM SAFE ALTITUDE WARNING.)

MTI−

(See MOVING TARGET INDICATOR.)

MTR−

(See MILITARY TRAINING ROUTES.)

MULTICOM− A mobile service not open to public

correspondence used to provide communications

essential to conduct the activities being performed by

or directed from private aircraft.
MULTIPLE RUNWAYS− The utilization  of a

dedicated arrival runway(s) for departures and a

dedicated departure runway(s) for arrivals when

feasible to reduce delays and enhance capacity.
MVA−

(See MINIMUM VECTORING ALTITUDE.)