Instruction Manual

Page 3-44 G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 4 190-00716-01
NOTE
Depending on the computer’s security settings, Windows may prompt the
installer to allow the installation software to make changes to the computer.
The installer will need access to install hardware drivers, program files, and
shortcuts. The application may be uninstalled at any time through the
Windows Control Panel.
3.28.3 GRA 5500 Calibration
The following actions must be performed after initial installation of the Garmin GRA 5500:
1. Connect a PC (that has the GRA 5500 Retrofit Installation Tool installed) to the GRA 5500 via a
USB cable to the installed USB Pigtail located near the GRA 5500.
2. Start the GRA 5500 Retrofit Installation Tool from the “Start Menu” shortcut, or launch the
application from its program folder.
3. Power-up the GRA 5500 by applying aircraft power.
4. The connection status in the lower, right-hand corner of the GRA 5500 Retrofit Installation Tool
will transition from “Not Connected,” to “Connecting,” and finally to “Connected” once the
GRA 5500 is powered.
5. In the GRA 5500 Retrofit Installation Tool, click on Tools Æ Preferences Æ Advanced Tab Æ
Select Allow Airframe Options.
6. Airframe Options window will be visible under the configuration tab. Select Option 1 and
Option 2.
Note: Aircraft option 1: 4 dB cables
Aircraft option 2: NCD curve adjusted for 3 foot installs
7. Click “Save Configuration to Unit”
8. On the Status Tab, click “Initiate Calibration Procedure”
9. Verify that the GRA 5500 Retrofit Installation Tool display a progress dialog during the
calibration procedure and automatically close once the calibration procedure is completed.
10. Verify that the information displayed in the status bar indicates “0 ft” and “Normal”.