5-3-3. BEACON IDENTIFICATION METHODS

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  • 5-3-3. BEACON IDENTIFICATION METHODS

    When using only Mode 3/A radar beacon to identify a target, use one of the following methods:

    1. Request the aircraft to activate the “IDENT” feature of the transponder and then observe the identification display.
      • NOTE:
      • 1. At facilities where the single-slash “IDENT” modification is installed or other decoder modifications have been made which increase the number of “blooming” target displays, it will be necessary to exercise additional care to preclude the possibility of misidentification.
      • 2. TERMINAL. When automated displays are operated in the analog mode, the “IDENT” return is displayed as a double slash and the emergency return as a single bloomer whenever the beacon control head is in the “fail” position.
      • PHRASEOLOGY
      • IDENT.
      • SQUAWK (code) AND IDENT.
    2. 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.
    3. 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.
      • PHRASEOLOGY
      • SQUAWK STANDBY,
      • then
      • SQUAWK NORMAL.
    4. EN ROUTE. 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.

      NOTE: Paired LDBs in ERAM do not display a beacon code.

      • PHRASEOLOGY
      • SQUAWK (4 digit discrete code), AND IF YOUR ALTITUDE REPORTING EQUIPMENT IS TURNED OFF, SQUAWK ALTITUDE.

      NOTE: The 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.

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