Towered · Class D surface area

North Texas Regional/Perrin Field (KGYI) radio calls

Sherman/Denison, TXICAO KGYI · FAA GYI

North Texas Regional/Perrin Field is a towered airport in Sherman/Denison, TX. You will taxi with Ground on 124.125 and work North Texas Tower on 120.575, after listening to the ATIS on 118.775. The tower operates 0700-1900 local.

The airport has a Class D surface area: two-way radio communication with the tower must be established before entering. Published hours: CLASS D SVC 0700-1900; OTHER TIMES CLASS G.

Frequencies

ATIS118.775
GroundNorth Texas Ground124.125
TowerNorth Texas Tower120.575
CTAF120.575

Airport

Runways
18L · 36R · 18R · 36L
Elevation
749 ft
Tower hours
0700-1900 local
Position
33.714, -96.674

Towered airport with a Class D surface area

Sample calls at KGYI

North Texas Regional/Perrin Field has a Class D surface area: establish two-way communication with the tower before entering (AIM 3-2-5 b 3). A reply that uses your call sign, even "standby", establishes it; "aircraft calling, standby" does not. The calls below use runway 18L; the tower assigns the runway in use 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. Listen to the ATIS on 118.775 first and note the letter; "with Information (letter)" on your first call lets the controller skip the weather (JO 7110.65 3-10-1).
  2. YouNorth Texas Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
  3. ATCCessna Six Zero Foxtrot, North Texas Ground, runway one eight left, taxi via Alpha, hold short of runway one eight left.
  4. YouRunway one eight left, taxi via Alpha, hold short of runway one eight left, Cessna Six Zero Foxtrot.
  5. The runway, any clearance onto a runway and every hold-short instruction are read back (AIM 4-3-18 a 9). Stay on Ground through the run-up and switch to Tower when ready (AIM 4-3-14 a).
  6. YouNorth Texas Tower, Cessna Six Zero Foxtrot, holding short runway one eight left, ready for departure, northbound.
  7. ATCCessna Six Zero Foxtrot, North Texas Tower, runway one eight left, cleared for takeoff.
  8. YouRunway one eight left, cleared for takeoff, Cessna Six Zero Foxtrot.
  9. Inbound: call the tower about 15 miles out, before the Class D boundary (AIM 4-3-2 a).
  10. YouNorth Texas Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing North Texas.
  11. ATCCessna Six Zero Foxtrot, North Texas Tower, enter left downwind runway one eight left, report midfield downwind.
  12. YouEnter left downwind runway one eight left, report midfield, Cessna Six Zero Foxtrot.
  13. YouNorth Texas Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one eight left.
  14. ATCCessna Six Zero Foxtrot, runway one eight left, cleared to land, wind two seven zero at eight.
  15. YouRunway one eight left, cleared to land, Cessna Six Zero Foxtrot.
  16. The wind is information: acknowledged, not read back. Exit at the first available taxiway or as told, taxi clear of the hold-short markings, and change to Ground only when the tower says (AIM 4-3-21).
  17. ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact North Texas Ground one two four point one two five.
  18. YouExit next taxiway, one two four point one two five, Cessna Six Zero Foxtrot.
  19. YouNorth Texas Ground, Cessna Six Zero Foxtrot, clear of runway one eight left, taxi to the ramp.

If things change. The tower operates 0700-1900 local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 120.575 with the airport name first and last, and the surface area reverts to Class E or Class G as published in the Chart Supplement.

Phraseology from AIM 4-2-3; 4-3-18 a 9; 4-3-14; 4-3-21; 4-4-7 b; 4-1-18 a 3; 3-2-5 b 3; 4-3-2 a. What TowerTalk grades against →

The calls you will make here

Nearby in Texas

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.