Garmin G3X Installation Manual page 257

21.2.6 Rotorcraft Applications
Rotorcraft engine monitoring can be accomplished with a GDU 45X/46X system, using the engine sensor
application information in
used to monitor rotor RPM.
Sensor Type
Rotor RPM
Engine RPM
Other engine sensors
A GDU 45X/46X system using two GEA 24 units can be used to monitor engine information for a twin-
engine rotorcraft, as described in
190-01115-01
Rev. AA
Section 21.2.1 through
Table 21-12 Sensors for Rotorcraft Applications
Select "Custom" configuration for GEA 24 RPM1 input and enter frequency-
to-RPM calibration. A Sandia ST26 tachometer signal converter may be
required to provide proper digital signal conditioning.
Select appropriate configuration for GEA 24 RPM 2 input as described in
Section 21.2.1 through
Select appropriate sensors and configuration as described in
through Section 21.2.4.
.
Section 21.2.5
G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation
Section 21.2.4. Typically, the GEA 24 RPM 1 input is
Details
Section 21.2.4.
Section 21.2.1
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