Part 107 sectional chart question: 2026-10-16

Daily sectional drill archive. Answer it, then read the worked explanation.

Today's chart question for Friday, Oct 16, 2026

FAA sectional chart excerpt for this question — Sectional: Las Vegas, edition effective Sep 3, 2026 (next edition Oct 29, 2026). Source: FAA (public domain).

Refer to the marked airport. Which frequency should a remote pilot monitor as the Common Traffic Advisory Frequency (CTAF) at SANPETE COUNTY RGNL (41U)?

A. 122.8
B. 122.725
C. 120.025

Answer: A. Find Sanpete County Rgnl on the chart and read its airport data block. The frequency followed by a solid magenta circle with a C in it is the Common Traffic Advisory Frequency (CTAF): 122.8. Here the UNICOM and the CTAF are the same frequency (122.8), which is common at non-towered fields. A remote pilot is not required to talk on the radio, but monitoring the CTAF is how you learn where manned traffic is in the pattern (AC 107-2; Remote Pilot Study Guide, Ch. 5). 120.025 is the automated weather (AWOS/ASOS) frequency, not the CTAF.

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