Non-towered · Class G at the surface
Grundy Center Municipal (6K7) radio calls
Grundy Center, IAFAA identifier 6K7; no ICAO code assigned
Grundy Center Municipal is a non-towered airport in Grundy Center, IA. Nobody clears you to do anything: you self-announce on the CTAF, 122.9, as Grundy Center Municipal Traffic, with the airport name at the start and end of each call.
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
| CTAFGrundy Center Municipal Traffic | 122.9 |
|---|
Airport
- Runways
- 17 · 35
- Elevation
- 1,075 ft
- Position
- 42.351, -92.842
Non-towered airport: self-announce on the CTAF
Sample calls at 6K7
Grundy Center 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 17; 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).
- YouGrundy Center Municipal traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway one seven, Grundy Center Municipal.
- YouGrundy Center Municipal traffic, Cessna Six Zero Foxtrot, departing runway one seven, departing the pattern to the north, Grundy Center 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).
- YouGrundy Center Municipal traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Grundy Center Municipal, Grundy Center Municipal.
- YouGrundy Center Municipal traffic, Cessna Six Zero Foxtrot, entering left downwind runway one seven, full stop, Grundy Center Municipal.
- YouGrundy Center Municipal traffic, Cessna Six Zero Foxtrot, left base runway one seven, Grundy Center Municipal.
- YouGrundy Center Municipal traffic, Cessna Six Zero Foxtrot, final runway one seven, full stop, Grundy Center Municipal.
- YouGrundy Center Municipal traffic, Cessna Six Zero Foxtrot, clear of runway one seven, Grundy Center Municipal.
If things change. 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). Listen for ten miles before you arrive; most of what you want to know has already been said.
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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