St Joseph Medical Center frequencies

St Joseph Medical Center (MO21) in Kansas City, MO has no control tower, so nobody is sequencing traffic here — you announce your own position on 123.05. Every frequency below is in the order you tune it. · Open on the map

All of St Joseph Medical Center — runways, frequencies, charts and live weather

Taxi & takeoff

UNICOM 123.05
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 123.05

Nobody is sequencing traffic at MO21, 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 — 123.05 is not unique to St Joseph Medical Center.

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

Pattern direction is not always left here — check the MO21 traffic pattern before you announce a leg. The Chart Supplement is authoritative if MO21 publishes a call name that differs from the airport's. Full guidance →

Every MO21 frequency, as one table
UNICOM123.05

Frequently asked

What is the CTAF at MO21?

St Joseph Medical Center is non towered. The common traffic advisory frequency is 123.05 — announce your position and intentions on entry and on each leg of the pattern.