The Ohio State University Airport - Don Scott Field frequencies
The Ohio State University Airport - Don Scott Field (OSU · KOSU) in Columbus, OH is a towered field, staffed 0700-2300. Every frequency below is in the order you tune it, from the first call to the handoff on climb out. · Open on the map
All of The Ohio State University Airport - Don Scott Field — runways, frequencies, charts and live weatherWhen the KOSU tower is closed
The tower is staffed 0700-2300. Outside those hours The Ohio State University Airport - Don Scott Field has no operating control tower: it becomes a self announce field on 118.8, and separation from other traffic is yours, not a controller's. Report your position and intentions on entry and on each leg of the pattern.
Runway lighting is often pilot controlled once the tower closes — check the KOSU airport page for the click sequence, and what to say on the radio.
Before taxi State
- ATIS 121.35
- A recorded loop of the field's weather, active runway and any notices, updated hourly or whenever conditions change. Listen before your first call, and tell the controller which letter you have so they do not read it to you again.
- ASOS/AWOS 121.35
- An automated weather station reading the field conditions aloud — wind, visibility, ceiling, temperature and altimeter. It replaces ATIS at a field with no controller to record one. Get the altimeter setting before you descend below the transition altitude.
- Clearance 121.7
- Clearance delivery issues your IFR clearance, and at busier fields your VFR departure instructions and squawk code. Call before you request taxi, with the ATIS letter and your intended direction of flight.
Taxi & takeoff State
- Ground 121.7
- Ground control owns every taxiway and inactive runway on the field. Call for taxi with your position and destination on the field. You need an explicit clearance to cross any runway, including one that is not in use.
- Tower 118.8
- Tower owns the active runways and the surrounding surface area. Call before entering the surface area inbound, and hold short until you are cleared to take off or to cross.
Departure & arrival Columbus
- App/Dep 125.95 (CBUSS · DUBLN arrivals)
- One radar controller working both arrivals and departures — normal at a smaller TRACON. The same frequency takes your climb out and your inbound call.
Also
- CTAF 118.8
- 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 122.95
- 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.
By procedure & sector (6 more)
| 46.8 | NG OPS |
|---|---|
| 123.075 | NG OPS |
| 125.95 | CBUSS STAR, DUBLN STAR |
| 254.325 | LCL/P |
| 317.775 | APCH/P DEP/P IC |
| 371.975 | CBUSS STAR, DUBLN STAR |
Every KOSU frequency, as one table
| ATIS | 121.35 |
|---|---|
| ASOS/AWOS | 121.35 |
| Clearance | 121.7 |
| Ground | 121.7 |
| Tower | 118.8 |
| CTAF | 118.8 |
| UNICOM | 122.95 |
| App/Dep | 125.95 · CBUSS · DUBLN arrivals |
Frequently asked
What is the tower frequency at KOSU?
The Ohio State University Airport - Don Scott Field tower is 118.8, calling "State Tower". The tower is staffed 0700-2300.
What frequency do I use at KOSU when the tower is closed?
Outside 0700-2300, The Ohio State University Airport - Don Scott Field has no operating control tower and becomes a self announce field. Use 118.8 as the CTAF and report your position and intentions — there is nobody to clear you, so separation is yours.
What is the ground frequency at KOSU?
Ground control at The Ohio State University Airport - Don Scott Field is 121.7. You need an explicit clearance from ground to cross any runway while taxiing, including one that is not in use.
What is the ATIS frequency at KOSU?
ATIS at The Ohio State University Airport - Don Scott Field is 121.35. Listen before your first call and report the letter you have.
What is the approach frequency for KOSU?
App/Dep for The Ohio State University Airport - Don Scott Field is 125.95, working as "Columbus" (CBUSS · DUBLN arrivals). Call inbound for flight following or to begin an instrument approach.
Where do I get my clearance at KOSU?
Clearance delivery at The Ohio State University Airport - Don Scott Field is 121.7. Call before requesting taxi, with the current ATIS letter and your direction of flight.
More about KOSU
Frequencies from FAA NASR. For planning and education only; always verify against official sources.