Airspace & ChartsQuestion 48 of 100
The airport data block on a sectional lists the frequency 122.9 followed by a solid circle containing the letter C. What does that symbol tell a remote pilot planning to monitor local traffic?
a.The listed frequency is the automated terminal information service broadcast
b.The listed frequency is the common traffic advisory frequency, or CTAF
c.The listed frequency is a control tower frequency staffed around the clock
d.The listed frequency is the air route traffic control center frequency for the area
Explanation
A solid circle enclosing the letter C marks the published CTAF, the frequency pilots use to self-announce position and intentions at a non-towered field or when a tower is closed. ATIS, tower, and center frequencies are each labeled separately in the data block or on the chart by name. Monitoring the CTAF helps a remote pilot build awareness of arriving and departing traffic, though listening does not replace the duty to yield the right of way.
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