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Location broadcast by a remote identification broadcast module

Remote Pilot (Part 107) practice question 6 of 8 on Regulations / Remote Identification. ACS element UA.I.F.K6 · difficulty: applied. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONA remote pilot launches an unmanned aircraft fitted with a remote identification broadcast module and then walks about 300 feet away from the launch point while flying. Under § 89.315, which location's latitude and longitude does the broadcast module include in its message elements in addition to the position of the unmanned aircraft itself?

  1. AThe current position of the control station
  2. BThe mailing address shown on the aircraft registration
  3. CThe take-off location of the unmanned aircraft
Show the answer and explanation

Correct answer: C. The take-off location of the unmanned aircraft

  • A — incorrect Control station latitude, longitude and altitude are message elements of a standard remote identification unmanned aircraft under § 89.305(b) and (c), not of a broadcast module under § 89.315.
  • B — incorrect No message element in § 89.315 refers to a mailing or registration address; the module broadcasts positions, altitude, velocity, a time mark and the module serial number.
  • C — correct § 89.315(e) and (f) require a remote identification broadcast module to broadcast the latitude, longitude and geometric altitude of the take-off location of the unmanned aircraft; no element in § 89.315 reports where the pilot walks afterward.

BACKGROUND

Part 89 defines two different minimum message sets. Under § 89.305, a standard remote identification unmanned aircraft broadcasts the aircraft identity (serial number or session ID), the latitude, longitude and geometric altitude of the control station, the latitude, longitude, geometric altitude and velocity of the unmanned aircraft, a Coordinated Universal Time (UTC) time mark, and an emergency status indication. Under § 89.315, a remote identification broadcast module broadcasts the module serial number, the latitude, longitude, geometric altitude and velocity of the unmanned aircraft, the latitude, longitude and geometric altitude of the take-off location, and a UTC time mark. The key difference is that the module reports the take-off location rather than the moving control station. Separately, § 89.115(a)(2)(ii) requires the person manipulating the flight controls of a module-equipped aircraft to be able to see the aircraft at all times throughout the operation.

STUDY TIP

Remember the swap: standard remote identification reports the control station position; a broadcast module reports the take-off location. The broadcast module set also has no session ID and no emergency status element.

KEY POINTS

  • A remote identification broadcast module must broadcast the take-off location's latitude, longitude and geometric altitude.
  • A standard remote identification unmanned aircraft broadcasts the control station's position instead of the take-off location.
  • Both message sets include the unmanned aircraft's position, geometric altitude, velocity and a UTC time mark.

SOURCES

  • 14 CFR 89.315
  • 14 CFR 89.305
  • 14 CFR 89.115(a)(2)(ii)
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MORE ON REGULATIONS / REMOTE IDENTIFICATION

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.