Harmon Memorial Hospital frequencies
Harmon Memorial Hospital (OL50) in Hollis, OK 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
All of Harmon Memorial Hospital — runways, frequencies, charts and live weatherTaxi & 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 OL50, 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 Harmon Memorial Hospital.
- Inbound, 10 miles out
Harmon Hospital traffic, Skyhawk one two three four five, one zero miles south, inbound landing, Harmon Hospital.
- Entering the pattern
Harmon Hospital traffic, Skyhawk one two three four five, entering left downwind , Harmon Hospital.
- Before taking the runway
Harmon Hospital traffic, Skyhawk one two three four five, departing , Harmon Hospital.
Pattern direction is not always left here — check the OL50 traffic pattern before you announce a leg. The Chart Supplement is authoritative if OL50 publishes a call name that differs from the airport's. Full guidance →
Every OL50 frequency, as one table
| CTAF | 122.9 |
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Frequently asked
What is the CTAF at OL50?
Harmon Memorial Hospital 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.
More about OL50
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Something here wrong or out of date?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.