THE GVC39 IS NOW PMA APPROVED. - The GVC39 system provides satellite
weather information to be displayed on existing Universal MFD640 and
EFI-890R displays. The GVC39 is designed to host the XM WX or WSI
Satellite Weather products. The GVC39 system provides the interface
between the satellite weather receiver and the cockpit display by
providing the computer to run the application software and the correct
video format. The GVC39 Video Control Panel is a Dzus mounted unit
providing the flight crew the equivalent of a three-button mouse to
control the operation of the weather delivery product. Further, the
GVC39 accepts ARINC 429 GPS data for input into the weather software,
allowing it to display position, track, and velocity data.