Air Traffic Control

Before any pedestrian, vehicle or aircraft is allowed to enter the aircraft movement area* (areas are designated on the map below), the tower must be contacted for permission. To contact the tower, you must use a VHF radio (frequency 119.12).

*An "aircraft movement area" is any area which is reserved for tower-controlled movement patterns.

 Any vehicle that seeks access to an Aircraft Movement Area must be equipped with a flashing yellow light and an Air Band Transceiver tuned to GT Ground at 119.12.

"Non-Movement Areas" - aprons, helipads, aircraft parking areas, and taxilanes NOT under the control of the control tower.

In order to reduce the number of frequencies pilots will be required to use and/or monitor, the AWOS VHF broadcast will be changed from 135.425 to the new: 

ATIS Frequency of  118.6            

Effective 10/24/07 

During the Tower operating hours, pilots will hear the Tower ATIS broadcast.  During the hours  the Tower is NOT operating the standard AWOS weather broadcast will be transmitted on:  118.6 

The standard AWOS weather announcement available by telephone at (512) 869-3430 will remain the same 24/7.