Adahrs Calibration Page - Garmin G3X Touch Installation Manual

34.4.5 ADAHRS (Air Data Attitude/Heading Reference System) Calibration Page
The ADAHRS Calibration Page is used to perform post-installation calibration for both the GSU 25 and/or
GSU 73 (as applicable).
1. To access the ADAHRS Calibration Page, power on PFD1 in configuration mode
(this step can be skipped if PFD1 is already in configuration mode)
2. Use the Touch Panel or a Move Selector Knob to select the ADAHRS Calibration Page.
3. The GSU 25, Air Data, and GPS Data checkboxes
LRUs with a green check, no green check indicates no communication with LRU.
4. Press the Back key to return to the Configuration Mode page when finished (if desired).
See Section 34.3 (SW loading procedure) and the following sections (Post Installation Calibration
Procedures) for further information regarding the ADAHRS Calibration Page.
After mechanical and electrical installation of the GSU 25/GSU 73 ADAHRS have been completed, prior
to operation, a set of post-installation calibration procedures must be carried out.
The calibration procedures
Calibration Page (configuration mode) indicate a positive state (green check marks) before starting the
procedure. Table 34-2 and
190-01115-01 G3X/G3X Touch Install Manual - GDU 4XX Config and Post Install Checkout
Rev. AC
(34.4.5.1 – 34.4.5.4) may require that certain status boxes on the ADAHRS
Table 34-3 list the status box requirements for each calibration procedure.
(Section ) confirm operational status of these
(Section 34.2).
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