Black River Ranch frequencies

Black River Ranch (1MI3) in Onaway, MI has no control tower, so nobody is sequencing traffic here — you announce your own position on 122.9. Every frequency below is in the order you tune it. · Open on the map

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Taxi & takeoff

CTAF 122.9
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.

What to say on 122.9

Nobody is sequencing traffic at 1MI3, 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 — 122.9 is not unique to Black River Ranch.

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

Pattern direction is not always left here — check the 1MI3 traffic pattern before you announce a leg. The Chart Supplement is authoritative if 1MI3 publishes a call name that differs from the airport's. Full guidance →

Every 1MI3 frequency, as one table
CTAF122.9

Frequently asked

What is the CTAF at 1MI3?

Black River Ranch is non towered. The common traffic advisory frequency is 122.9 — announce your position and intentions on entry and on each leg of the pattern.