Halliburton Field frequencies
Halliburton Field (DUC · KDUC) in Duncan, OK 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 Halliburton Field — runways, frequencies, charts and live weatherBefore taxi
- ASOS/AWOS 119.075
- 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 118.4
- 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
- CTAF 122.8
- 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 122.8
- 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.
Departure & arrival Fort Sill
- App/Dep 118.6
- One radar controller working both arrivals and departures — normal at a smaller TRACON. The same frequency takes your climb out and your inbound call.
What to say on 122.8
Nobody is sequencing traffic at KDUC, 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 Halliburton Field.
- Inbound, 10 miles out
Halliburton traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 17, Halliburton.
- Entering the pattern
Halliburton traffic, Skyhawk one two three four five, entering left downwind runway 17, Halliburton.
- Before taking the runway
Halliburton traffic, Skyhawk one two three four five, departing runway 17, Halliburton.
Pattern direction is not always left here — check the KDUC traffic pattern before you announce a leg. The Chart Supplement is authoritative if KDUC publishes a call name that differs from the airport's. Full guidance →
By procedure & sector (1 more)
| 290.375 | APCH/P DEP/P |
|---|
Every KDUC frequency, as one table
| ASOS/AWOS | 119.075 |
|---|---|
| Clearance | 118.4 |
| CTAF | 122.8 |
| UNICOM | 122.8 |
| App/Dep | 118.6 |
Frequently asked
What is the CTAF at KDUC?
Halliburton Field 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.
What is the ASOS/AWOS frequency at KDUC?
ASOS/AWOS at Halliburton Field is 119.075. It is an automated broadcast, so there is no letter to report — just take the altimeter setting and wind.
What is the approach frequency for KDUC?
App/Dep for Halliburton Field is 118.6, working as "Fort Sill". Call inbound for flight following or to begin an instrument approach.
Where do I get my clearance at KDUC?
Clearance delivery at Halliburton Field is 118.4. Call before requesting taxi, with the current ATIS letter and your direction of flight.
More about KDUC
Frequencies from FAA NASR. For planning and education only; always verify against official sources.