riffelj
Joined: 20 Apr 2009
Posts: 14
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 Posted: Tue Dec 07, 2010 8:27 am Post subject: Help: ADI II to GNS430 |
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I've got a TruTrak ADI II connected to a GNS430 (non-WAAS). Normally they
communicate fine.
But I’m having occasional trouble switching the ADI II between the TRACK and
NAV modes. Because the non-waas 430 does not fly the holds and procedure
turns, I need to switch to TRACK to fly those … and then back to NAV when I
head inbound.
After using the NAV to fly to the intial fix, I switch to TRACK to fly the
hold. When I tell the 430 that we’re going to the runway (and I get a
magenta line), sometimes I can switch back to NAV … and sometimes I cannot.
I’ve checked for a bad connection on the ground. I brought up the 430 to the
Instrument Panel Self-Test page (pressing ENT only once). I pushed the ADI
right button twice and got the NAV to come on. Then I wiggled the RS232 wire
between the 430 and the ADI - and the NAV light was rock-solid. So it
doesn't look like I've got a short.
When I call both TruTrak and Garmin, they are suspicious of the others box
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