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  1. R

    EFIS Installation - Garmin 496 connection

    I recently bought an airplane equipped with a Garmin GTX330, Garmin 496, Dynon HS34, Dynon D100 EFIS and Trutrak autopilot. The RS-232 output from the GTX 330 and the serial output from the Dynon HS34 are both connected to the data-in wire for the Garmin 496. With this configuration I get...
  2. R

    Software Update - D100, D120, HS34

    I plan to update the software in my D100, D120 and HS34.  Instructions call for updating each unit separtely with the other two powered down.  Is disconnecting the connector  on the back of the HS34 the only way to power it down?
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