24 (Refer to FAA-CT-8080-2G, Figure 22, area 2.) At Coeur D`Alene which frequency should be used as a Common Traffic Advisory Frequency (CTAF) to monitor airport traffic?
A. 122.05 MHz.
This is not the correct answer.
RCO's (Remote Communication Outlet) are primarily for use by aircraft on the ground or at too low an altitude to establish direct radio contact with the Flight Service Station (FSS).  In this example, 122.05 MHz is the frequency that a pilot can communicate with the Biose FSS from the Coeur D' Alene, Idaho airport.
Click here to learn more about the Communications Boxes on the Sectional Chart.
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