ATC 3-2 Radar Questions with Detailed Verified Answers
safety alert Ans: ✓ ✓ ✓ issue this to an a/c if you are aware the a/c is in a position/altitude that
places it in unsafe proximity to obstructions, terrain, and other a/c
Terrain/obstruction alert Ans: ✓ ✓ ✓ Immediately issue to a/c if you are aware it is at an altitude
that places it in unsafe proximity to terrain or obstructions
Terrain/obstruction alert Ans: ✓ ✓ ✓ "Low altitude alert (c/s), check your altitude immediately.
The MEA in your area is (alt)"
aircraft conflict/Mode C intruder alert Ans: ✓ ✓ ✓ immediately issue if you are aware another a/c
at that altitude is in close proximity
aircraft conflict/Mode C intruder alert Ans: ✓ ✓ ✓ "Traffic alert (c/s), climb/descend/advise you
turn left immediately"
all IFR/VFR aircraft Ans: ✓ ✓ ✓ issue traffic to _________ on your frequency
CMDTA (clock, miles, direction, type of a/c, altitude) Ans: ✓ ✓ ✓ traffic advisory for radar ID
Traffic Ans: ✓ ✓ ✓ Issue _______ to aircraft when
1. when their proximity may diminish to less than the applicable separation
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2. VFR outside of B, C, TRSA, or where no minima applies, issue to those on your frequency that
warrant it.
Radar ID traffic Ans: ✓ ✓ ✓ "Traffic, 6 o clock, east 5 miles westbound, F18, 12,000 or altitude
unknown"
Triple D, T, A (distance from fix, direction from fix, direction traffic proceeding, type, altitude, ETA
over fix) Ans: ✓ ✓ ✓ traffic advisory for non radar ID
Non radar ID traffic Ans: ✓ ✓ ✓ "Traffic, one zero miles east of VOR, southbound, F18, 8000 or
altitude unknown, estimated Joliet VOR 2035"
personally satisfied Ans: ✓ ✓ ✓ provide radar service only if you are _________it is adequate
not equipped, DTAS Ans: ✓ ✓ ✓ Conduct alignment accuracy check at locations (equipped/not
equipped) with _______
Digital terminal automation systems Ans: ✓ ✓ ✓ what is DTAS?
alignment accuracy checks Ans: ✓ ✓ ✓ Conduct ________ when
1. during relief briefing
2. ASAP after assuming responsibility on position
3. periodically throughout watch
alignment, azimuth, range Ans: ✓ ✓ ✓ check _______ by assuring that the video/digital map or
overlay is properly aligned with a permanent target of known ________ and _______
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