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Non-towered · Class G at the surface

Berkeley County (KMKS) radio calls

Moncks Corner, SCICAO KMKS · FAA MKS

Berkeley County is a non-towered airport in Moncks Corner, SC. Nobody clears you to do anything: you self-announce on the CTAF, 123.05, as Berkeley County Traffic, with the airport name at the start and end of each call. The approach control for the area is Charleston Approach on 121.275, 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

CTAFBerkeley County Traffic123.05
Approach / DepartureCharleston Approach121.275

Airport

Runways
05 · 23
Elevation
74 ft
Position
33.185, -80.037

Non-towered airport: self-announce on the CTAF

Sample calls at KMKS

Berkeley County has no operating control tower. Every call below goes out on the CTAF, 123.05, to the other aircraft, not to a controller. The runway shown is 05; 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.

  1. Tune 123.05. 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).
  2. YouBerkeley County traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway zero five, Berkeley County.
  3. YouBerkeley County traffic, Cessna Six Zero Foxtrot, departing runway zero five, departing the pattern to the north, Berkeley County.
  4. 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).
  5. YouBerkeley County traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Berkeley County, Berkeley County.
  6. YouBerkeley County UNICOM, Cessna Six Zero Foxtrot, one zero miles south, request wind and runway information, Berkeley County.
  7. A UNICOM operator, if one is on, answers with the wind and the runway in use (AIM 4-1-9 h). If nobody answers, choose the runway from the wind and the pattern traffic you can hear.
  8. YouBerkeley County traffic, Cessna Six Zero Foxtrot, entering left downwind runway zero five, full stop, Berkeley County.
  9. YouBerkeley County traffic, Cessna Six Zero Foxtrot, left base runway zero five, Berkeley County.
  10. YouBerkeley County traffic, Cessna Six Zero Foxtrot, final runway zero five, full stop, Berkeley County.
  11. YouBerkeley County traffic, Cessna Six Zero Foxtrot, clear of runway zero five, Berkeley County.

If things change. Want flight following after departure? Call Charleston Approach on 121.275 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

Nearby in South Carolina

Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Oct 29, 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.