Non-towered · Class G at the surface
Hillsboro Municipal (3H4) radio calls
Hillsboro, NDFAA identifier 3H4; no ICAO code assigned
Hillsboro Municipal is a non-towered airport in Hillsboro, ND. Nobody clears you to do anything: you self-announce on the CTAF, 122.9, as Hillsboro Municipal Traffic, with the airport name at the start and end of each call. The approach control for the area is Fargo Approach on 120.4, which is who you call for VFR flight following.
No Class B, C, D or E surface area is designated for this airport in the FAA data, so the airspace at the surface is Class G.
Frequencies
| CTAFHillsboro Municipal Traffic | 122.9 |
|---|---|
| Approach / DepartureFargo Approach | 120.4 |
Airport
- Runways
- 16 · 34
- Elevation
- 906 ft
- Position
- 47.359, -97.060
Non-towered airport: self-announce on the CTAF
Sample calls at 3H4
Hillsboro Municipal has no operating control tower. Every call below goes out on the CTAF, 122.9, to the other aircraft, not to a controller. The runway shown is 16; use whichever runway the wind and the traffic dictate on the day.
The aircraft is the AIM’s own example, Cessna Three One Six Zero Foxtrot; the squawk codes, altitudes and headings are illustrative. Frequencies, station names and runway numbers are this airport’s, from the FAA data.
- Tune 122.9. Nobody clears you; you announce and you listen. The airport name goes at the start and the end of every call, and the runway is always a number, never "the active" (AIM 4-1-9 g 8).
- YouHillsboro Municipal traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway one six, Hillsboro Municipal.
- YouHillsboro Municipal traffic, Cessna Six Zero Foxtrot, departing runway one six, departing the pattern to the north, Hillsboro Municipal.
- Announce until you are about 10 miles out; on the way back, start announcing at 10 miles (AIM 4-1-9 c 1, TBL 4-1-1).
- YouHillsboro Municipal traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Hillsboro Municipal, Hillsboro Municipal.
- YouHillsboro Municipal traffic, Cessna Six Zero Foxtrot, entering left downwind runway one six, full stop, Hillsboro Municipal.
- YouHillsboro Municipal traffic, Cessna Six Zero Foxtrot, left base runway one six, Hillsboro Municipal.
- YouHillsboro Municipal traffic, Cessna Six Zero Foxtrot, final runway one six, full stop, Hillsboro Municipal.
- YouHillsboro Municipal traffic, Cessna Six Zero Foxtrot, clear of runway one six, Hillsboro Municipal.
If things change. Want flight following after departure? Call Fargo Approach on 120.4 once clear of the pattern: identification, type, position, altitude, destination, "request VFR flight following" (AIM 4-1-18 a 3). Do not use "any traffic in the area, please advise"; the AIM says it is not to be used under any condition (AIM 4-1-9 g 1).
Phraseology from AIM 4-1-9 c 1, g 1, g 8, h; TBL 4-1-1; 4-3-3. What TowerTalk grades against →
The calls you will make here
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Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Sep 3, 2026. Training use only. Always verify against a current Chart Supplement and sectional chart before flight; frequencies change. TowerTalk is not affiliated with the FAA. Report a discrepancy.
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