What is the CTAF frequency at 40D?

Three Lakes Municipal Airport's CTAF frequency is 122.7.

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Three Lakes Municipal Airport frequencies

Radio frequencies for Three Lakes Municipal Airport (40D) in Three Lakes, WI — tower, ground, ATIS, CTAF, and approach/departure for your radio setup.

Tower & ground

CTAF	122.7
UNICOM	122.7

Frequencies from FAA NASR. For planning and education only; always verify against official sources.