Hot Springs County Airport frequencies

Hot Springs County Airport (HSG · KHSG · THP) in Thermopolis, WY 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 Hot Springs County Airport — runways, frequencies, charts and live weather

Before taxi

ASOS/AWOS 121.125
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.

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.

Also

Flight service 133.25 (LOW/HIGH)
Flight Service handles briefings, flight plans and en route advisories, reached here through a remote outlet. Open and close VFR flight plans, and get updated weather in the air. 1-800-WX-BRIEF reaches the same specialists from the ground.

What to say on 122.8

Nobody is sequencing traffic at KHSG, 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 Hot Springs County Airport.

  • Inbound, 10 miles out Hot Springs traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 05, Hot Springs.
  • Entering the pattern Hot Springs traffic, Skyhawk one two three four five, entering left downwind runway 05, Hot Springs.
  • Before taking the runway Hot Springs traffic, Skyhawk one two three four five, departing runway 05, Hot Springs.

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

By procedure & sector (1 more)
285.6JACKSON RCAG (LOW/HIGH)
Every KHSG frequency, as one table
ASOS/AWOS121.125
CTAF122.8
UNICOM122.8
Flight service133.25 (LOW/HIGH)

Frequently asked

What is the CTAF at KHSG?

Hot Springs County Airport 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 KHSG?

ASOS/AWOS at Hot Springs County Airport is 121.125. It is an automated broadcast, so there is no letter to report — just take the altimeter setting and wind.