Three Lakes Municipal frequencies
Three Lakes Municipal (40D) in Three Lakes, WI has no control tower, so nobody is sequencing traffic here — you announce your own position on 122.7. Every frequency below is in the order you tune it. · Open on the map
All of Three Lakes Municipal — runways, frequencies, charts and live weatherTaxi & takeoff
- CTAF 122.7
- The common frequency pilots use to announce themselves to each other at a field with no operating control tower. Nobody is controlling traffic — you are self announcing. Report your position and intentions on entry and on each leg of the pattern, and listen well before you transmit.
- UNICOM 122.7
- A ground station run by the FBO rather than the FAA, for fuel, parking and airport services. Use it for services. Where the field has no separate CTAF, the same frequency doubles as the advisory frequency.
What to say on 122.7
Nobody is sequencing traffic at 40D, so every call is you telling other aircraft where you are. Open and close with the field name so a pilot tuned to a shared frequency knows which airport you mean — 122.7 is not unique to Three Lakes Municipal.
- Inbound, 10 miles out
Three Lakes traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 03, Three Lakes.
- Entering the pattern
Three Lakes traffic, Skyhawk one two three four five, entering left downwind runway 03, Three Lakes.
- Before taking the runway
Three Lakes traffic, Skyhawk one two three four five, departing runway 03, Three Lakes.
Pattern direction is not always left here — check the 40D traffic pattern before you announce a leg. The Chart Supplement is authoritative if 40D publishes a call name that differs from the airport's. Full guidance →
Every 40D frequency, as one table
| CTAF | 122.7 |
|---|---|
| UNICOM | 122.7 |
Frequently asked
What is the CTAF at 40D?
Three Lakes Municipal is non towered. The common traffic advisory frequency is 122.7 — announce your position and intentions on entry and on each leg of the pattern.
More about 40D
Frequencies from FAA NASR. For planning and education only; always verify against official sources.
Something here wrong or out of date? Report a data problem.