This app will only work with GDC64 devices that have firmware version -0050 or earlier.
For GDC64 versions -0050 and below use this "Legacy GDC64" App
For GDC64 versions -006A and above use the "GDC64 Utility" App
This free app allows the owners of the DAC International Model GDC64 accessory to setup and configure ARINC data for use.