BendixKing KLX 135A - Pilots Guide - Manual (Page 96)

When you press E and view the APT 4 page for KAUS, you
see that the Class C airspace frequencies are sectorized. You
determine from the APT 4 page that the proper frequency to use
is 124.90 MHz since we are Northeast of Austin and 124.90 MHz
is the appropriate frequency to use from 3 degrees to 170
degrees. You turn to the NAV 5 page so that we can see the
outer boundary of the Austin Class C airspace relative to our
location and route.
3. After you call Austin approach control for clearance into the Class
C airspace, you view the rest of the APT pages for KAUS to
determine the field elevation and available runways.
4. After landing, the KLX 135A is turned off either by rotating the
KLX 135A power knob counterclockwise (to OFF), or with the
avionics master switch if one is installed.
KLX 135A Pilot’s Guide Basic GPS Operation
3-67 Effective Date 5/95 006-08789-0000 Rev 0
Basic GPS Operation
Chapter 3