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Finding a non-towered airport's frequency

Remote Pilot (Part 107) practice question 11 of 22 on Operations / Airport Operations. ACS element UA.V.B.K5 · difficulty: standard. 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 wants to monitor the common frequency used by manned aircraft at a nearby non-towered airport. Where does the study guide say to look for the correct frequency?

  1. AThe FAA Flight Standards District Office for the area
  2. BThe Pilot/Controller Glossary in the AIM
  3. CThe sectional chart or the Chart Supplement U.S.
Show the answer and explanation

Correct answer: C. The sectional chart or the Chart Supplement U.S.

  • A — incorrect The study guide does not direct pilots to a district office for frequencies; it points to the sectional chart and the Chart Supplement U.S.
  • B — incorrect The study guide recommends the Pilot/Controller Glossary for understanding standard radio terminology, not for looking up an airport's frequency.
  • C — correct The study guide says these frequencies can be found on a sectional chart by the airport or in the Chart Supplement publication from the FAA, and warns to always check because the frequency can vary.

BACKGROUND

When a remote pilot plans to operate close to a non-towered airport, the study guide says the first step in radio procedures is to identify the appropriate frequencies. Most non-towered airports have a UNICOM frequency, usually 122.8, but the frequency can vary when there are many non-towered airports in an area, so the pilot should always check the Chart Supplement U.S. or the sectional chart. Non-towered airports with no UNICOM or other listed frequency use the MULTICOM frequency of 122.9. The Common Traffic Advisory Frequency (CTAF) may be a UNICOM, MULTICOM, FSS, or tower frequency and is identified in the appropriate aeronautical publications.

STUDY TIP

Never assume 122.8. The test rewards the habit of checking the sectional chart or Chart Supplement for the specific airport.

KEY POINTS

  • Frequencies are printed on the sectional chart by the airport and in the Chart Supplement U.S.
  • UNICOM is usually 122.8 but can vary.
  • With no listed frequency, MULTICOM 122.9 is used.

SOURCES

  • remote_pilot_study_guide.txt ch7 "Recommended Traffic Advisory Practices"
  • remote_pilot_study_guide.txt ch11 "Non-towered Airport"
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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.