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General Information
1.2 E
QUIPMENT
The Garmin GDL 90 is a remote-mounted product that contains a GPS/WAAS engine and a Universal
Access Transceiver. The GDL 90 will transmit ownship data via the UAT data link. It will receive data
from other UAT-equipped aircraft, as well as FIS-B weather – the received data may be output to an
appropriate display.
1.2.1
F
EATURES
The features of the GDL 90 UAT Data Link Sensor include:
10-40 VDC Power Capability
978 MHz Universal Access Transceiver data link radio designed to support ADS-B, TIS-B and FIS-B
airborne and ground applications
GPS/WAAS engine for state-of-the-art fast, accurate navigation and precision approach (15-channel,
3 WAAS decoders, 5 Hz update of position, time, and velocity)
Interface to Altitude Encoder via RS232 bus
Interface to Garmin MX20 Multi-function Display
1.2.2
S
YSTEM
The interfaces for a typical GDL 90 are shown in Figure 1-1. The available interfaces are further
described in the following sections.
1-2
D
ESCRIPTION
I
NTERFACES
560-1049-00 Rev B
GDL 90 Installation Manual
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