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1. 10:38 PM - GNS430 Communication Voltage- 14v or 28v? (Jared Yates)
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| Subject: | GNS430 Communication Voltage- 14v or 28v? |
I'm wiring my 14-volt panel, which includes a Garmin GNS430, non-WAAS
"legacy" version, and I am looking for advice from someone who is familiar
with the development timeline. I have an older hard copy of an installation
manual that says that the aircraft power on the P4002 (Communications)
connector must be at 28 volts. I noticed in the more recent 430W
installation manual that only the "A" high power units have this 28-volt
requirement. Does anyone know when the change happened? For instance, do
all of the old non-waas units have this 28-volt communication requirement,
or is there a mod that makes some of the non-w units (hopefully mine)
14-volt capable? The placard on the unit says that it is up to mod level 5,
and I have a list of all of the various service bulletins that have been
applied to it, in case any of that might help.
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