Section 17 Gsu 73 (Sensor Unit) Installation; Equipment Description - Garmin G3X Installation Manual

17 GSU 73 (SENSOR UNIT) INSTALLATION
The GSU 73 can be installed as part of the G3X system. This section contains general information as well
as installation information for the GSU 73. Use this section to mount the GSU 73 unit.

17.1 Equipment Description

NOTE
There is no TSO/ETSO applicable to the GSU 73.
The GSU 73 is intended for the experimental aircraft and LSA (light sport aircraft) markets. The Garmin
GSU 73 Sensor Unit is not a TSO-certified product and has received no FAA approval or endorsement.
The GSU 73 is intended to be used as a part of the G3X system and it is not suitable for installation in type-
certificated aircraft.
The GSU 73 is an LRU that provides AHRS and Air Data information as well as an interface to Engine/
Airframe sensors in a single mechanical package. The GSU 73 interfaces to a remote mounted GMU 22
for heading information and also computes OAT and TAS from inputs provided by the GTP 59.
NOTE
In installations using more than one ADAHRS, the GSU 73 will always be designated as
ADAHRS 1 and the GSU 25 units will be designated as ADAHRS 2,ADAHRS 3 etc.
190-01115-01
Rev. AA
Figure 17-1 GSU 73 Unit View
G3X/G3X Touch Installation Manual - GSU 73 Installation
Page 17-1