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Garmin 430W - Comm & Nav Power from Separate Busses

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Uncle

Joined: 04 Oct 2011
Posts: 10

Posted: Sat Jul 26, 2014 1:26 pm Post subject: Garmin 430W - Comm & Nav Power from Separate Busses

99,

Using the AeroElectric Z-11 schematic, I plan to supply the Nav side of the Garmin 430W from the Essential buss and the Comm side from the Main buss. The Garmin install manual shows the comm and nav functions of the 430W to be powered by separate wires with separate circuit breakers. With my equipment list I don't need the comm function of the 430W during battery only operations but I do need to power the nav side. In an alternator failed situation with the master switch off and the Essential buss alternate switch on, any reason why the 430W nav (GPS & VOR/LOC) will not work with the comm side receiving no power?



Thanks,

William Buckley

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William E. Buckley

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