Larson frequencies

Larson (5WI4) in Marinette, WI has no control tower, so nobody is sequencing traffic here — you announce your own position on 122.8. Every frequency below is in the order you tune it. · Open on the map

All of Larson — runways, frequencies, charts and live weather

Taxi & takeoff

UNICOM 122.8
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 122.8

Nobody is sequencing traffic at 5WI4, 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 — 122.8 is not unique to Larson.

  • Inbound, 10 miles out Larson traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 18, Larson.
  • Entering the pattern Larson traffic, Skyhawk one two three four five, entering left downwind runway 18, Larson.
  • Before taking the runway Larson traffic, Skyhawk one two three four five, departing runway 18, Larson.

Pattern direction is not always left here — check the 5WI4 traffic pattern before you announce a leg. The Chart Supplement is authoritative if 5WI4 publishes a call name that differs from the airport's. Full guidance →

Every 5WI4 frequency, as one table
UNICOM122.8

Frequently asked

What is the CTAF at 5WI4?

Larson is non towered. The common traffic advisory frequency is 122.8 — announce your position and intentions on entry and on each leg of the pattern.