San Geronimo Airpark frequencies

San Geronimo Airpark (8T8) in San Antonio, TX has no control tower, so nobody is sequencing traffic here — you announce your own position on 122.9. Every frequency below is in the order you tune it. · Open on the map

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Taxi & takeoff

CTAF 122.9
The common frequency pilots use to announce themselves to each other at a field with no operating control tower. Nobody is controlling traffic — you are self announcing. Report your position and intentions on entry and on each leg of the pattern, and listen well before you transmit.

What to say on 122.9

Nobody is sequencing traffic at 8T8, so every call is you telling other aircraft where you are. Open and close with the field name so a pilot tuned to a shared frequency knows which airport you mean — 122.9 is not unique to San Geronimo Airpark.

  • Inbound, 10 miles out San Geronimo traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 17L, San Geronimo.
  • Entering the pattern San Geronimo traffic, Skyhawk one two three four five, entering left downwind runway 17L, San Geronimo.
  • Before taking the runway San Geronimo traffic, Skyhawk one two three four five, departing runway 17L, San Geronimo.

Pattern direction is not always left here — check the 8T8 traffic pattern before you announce a leg. The Chart Supplement is authoritative if 8T8 publishes a call name that differs from the airport's. Full guidance →

Every 8T8 frequency, as one table
CTAF122.9

Frequently asked

What is the CTAF at 8T8?

San Geronimo Airpark is non towered. The common traffic advisory frequency is 122.9 — announce your position and intentions on entry and on each leg of the pattern.