My Garmin 430’s will not crossfill data?

The first thing to check is the Navigation data cards.  They have to be identical, or the cross fill function won’t work.  They used to write this on the card, but lately you have to read the expiration on the Garmin 430 screen on start up.

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Converter Testing Program

The Converter Testing Program allows the user to drive each channel to a specific voltage, to monitor switch and control functionality, and to monitor the effect of repositioning FTD controls for testing and calibration.

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