GDL 90 System ICA, Helicopter STC
Garmin AT
2345 Turner Rd SE
21 December 2005
Salem, OR 97302
Part #: 560-0255-00 Rev A
©
Copyright 2005 Garmin AT All Rights Reserved
Page 6 of 13
2.2
Description of Alteration
Installation of the Garmin GDL 90 Data Link Sensor with UAT antenna, GPS/WAAS antenna,
and other system interfaces. The GDL 90 can interface to the pilot through optional existing
equipment, such as the Garmin MX20 Multi-Function Display. Altitude data can be provided
directly to the GDL 90 as shown in Figure 1, or through other compatible interfaced equipment,
such as the MX20. The GDL 90 UAT may also interface to the pilot through the optional GSL
71 UAT Control Panel, which may be installed under this STC.
Figure 1 – Sample GDL 90 System
