Safe-Fly GPS Post-Installation Checkout Procedure
When used to provide position to an ADS-B out device, an ADS-B receiver can be used to verify
position data is being received by referring to the documentation for the ADS-B out device. An ADS-B
performance report should also be requested from the FAA after the airplane has been flown, to further
validate the installation.
When connected to a display unit, see the “Status Reporting” section, and verify the GPS is
communicating (this also verifies serial communication to the display unit), and verify the power inputs
used are showing voltage on these inputs. If this page is grayed out, no communication is being
received from the GPS module.
Use the Set Menu, Display Unit Maintenance, and GPS Status (select this GPS if more than one is
connected to the EFIS), and verify satellite reception. Typically, at least 7 satellites will show up on the
GPS status page. If no, or poor reception, check the antenna connection and verify the antenna has a
clear view of the sky.
Data to and from serial ports used on the module combiner are verified by any means that validates
serial communication. The technique will vary depending on the device.
Status Reporting
When a serial port has been configured for this module, the status of the module may be observed on
the Set Menu, Display Unit Maintenance. In the GRT Safe-Fly GPS/SPC menu, the following data is
provided:
Name Description
Module Software Version Software version of the GPS module
GPS Communicating Yes/No – Indicates if data has been received from
the RAIM GPS within the module. Should always
show “Yes” when the module is powered.
Load Module Software Select to update the software into the module from
a GSPCUp*.dat file.
Power Input 1 Voltage present on this power input
Power Input 2 Voltage present on this power input
Power Input 3 Voltage present on this power input
Temperature Internal temperature of processor
__________________________________________________________________________________
Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc
11