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5-3-2 Radar Identification
PHRASEOLOGYIDENT.
SQUAWK (code) AND IDENT.
b. Request the aircraft to change to a specific
discrete or nondiscrete code, as appropriate, and then
observe the target or code display change. If a code
change is required in accordance with Section 2,
Beacon Systems, of this chapter, use the codes
specified therein.
c. Request the aircraft to change transponder to
“standby.” After you observe the target disappear for
sufficient scans to assure that loss of target resulted
from placing the transponder in “standby” position,
request the aircraft to return transponder to normal
operation and then observe the reappearance of the
target.
PHRASEOLOGYSQUAWK
STANDBY,
then
SQUAWK NORMAL.
d. EN ROUTE. During narrowband operations,
an aircraft may be considered identified when the full
data block is automatically associated with the
beacon target symbol of an aircraft that is squawking
a discrete code assigned by the computer.
PHRASEOLOGYSQUAWK
(4 digit discrete code), AND IF YOUR
ALTITUDE REPORTING EQUIPMENT IS TURNED
OFF, SQUAWK ALTITUDE.
NOTEThe
AIM informs pilots to adjust Mode C transponders with
altitude reporting capability activated unless deactivation
is requested by ATC. Squawk altitude is included to provide
applicable phraseology.
REFERENCEFAAO
JO 7110.65, Para 3-1-9, Use of Tower Radar Displays.
FAAO JO 7110.65, Para 5-3-6, Position Information.
5-3-4. TERMINAL AUTOMATION SYSTEMS
IDENTIFICATION METHODS
TERMINAL
a. Consider an auto‐acquired aircraft as identified
when the data block is displayed and is visible to you,
and one of the following conditions exist:
1. The radar or beacon identification procedures
have been used to confirm the identity of the tagged
target.
2. The aircraft is being handed off using a NAS
automated system and one of the following does not
appear in the data block: “CST,” “NAT,” “NT,”
“AMB,” “OLD,” “NB,” “TU,” “AM,” or “OL”.
b. Use the data block to maintain target identity
unless it is in a coast status or displaced from the
appropriate target.
c. A displaced data block shall be updated at all
times.
REFERENCEFAAO
JO 7110.65, Para 3-1-9, Use of Tower Radar Displays.
5-3-5. QUESTIONABLE IDENTIFICATION
a. Use more than one method of identification
when proximity of targets, duplication of observed
action, or any other circumstances cause doubt as to
target identification.
b. If identification is questionable for any reason,
take immediate action to reidentify the aircraft or
terminate radar service. Identify the aircraft as
follows:
1. As described in para 5-3-2, Primary Radar
Identification Methods, or para 5-3-3, Beacon
Identification Methods.
2. En route. Ensure that all primary targets are
displayed when radar identification is lost or is
questionable.
REFERENCEFAAO
JO 7110.65, Para 5-4-3, Methods.
5-3-6. POSITION INFORMATION
Inform an aircraft of its position whenever radar
identification is established by means of identifying
turns or by any of the beacon identification methods
outlined in para 5-3-3, Beacon Identification
Methods. Position information need not be given
when identification is established by position
correlation or when a departing aircraft is identified
within 1 mile of the takeoff runway end.
2/14/08 JO 7110.65S
Radar Identification 5-3-3
5-3-7. IDENTIFICATION STATUS
a. Inform an aircraft of radar contact when:
1. Initial radar identification in the ATC system
is established.
2. Subsequent to loss of radar contact or
terminating radar service, radar identification is
reestablished.
PHRASEOLOGYRADAR
CONTACT (position if required).
b. Inform an aircraft when radar contact is lost.
PHRASEOLOGYRADAR
CONTACT LOST (alternative instructions when
required).
5-3-8. TARGET MARKERS
EN ROUTE
Retain data blocks that are associated with the
appropriate target symbol in order to maintain
continuous identity of aircraft. Retain the data block
until the aircraft has exited the sector or delegated
airspace, and all potential conflicts have been
resolved; including an aircraft that is a point out. The
data block shall display flight identification and
altitude information, as a minimum. The displayed
altitude may be assigned, interim, or reported.
5-3-9. TARGET MARKERS
TERMINAL
a. Retain data blocks that are associated with the
　
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