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IFD440 and two G5’s integration

Printed From: Avidyne
Category: Avidyne General
Forum Name: IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
Forum Description: Topics on Avidyne's IFD 5 Series and IFD 4 Series Touch Screen GPS/NAV/COM
Printed Date: 19 Jun 2018 at 6:49am
Software Version: Web Wiz Forums 12.01 -

Topic: IFD440 and two G5’s integration
Posted By: Flyer
Subject: IFD440 and two G5’s integration
Date Posted: 12 Jun 2018 at 4:19pm
hi there - I am trying to complete the wiring and IFD440 setup for the following:
Two G5’s (AI and HSI with magnetometer and A/P interface)
Ps Engineering 8000bti

I am sure the two G5’s and IFD combination is becoming rather common. I was hoping to find the correct mapping of the wiring and the IFD440 setup to get everything working correctly.

Any thoughts? Did any of you have done this before?

Posted By: Gring
Date Posted: 12 Jun 2018 at 5:39pm
There was a Beechtalk thread recently on using the G5 as an ADI where a GPS signal deficiency and turbulence resulted in erroneous reading. Further diagnosis of the data from the G5 (with Garmin's help) determined that the G5 (in this instance) needed an external GPS antenna.

This raises a further question of whether or not the G5 can properly function without valid GPS data. This was never answered sufficiently by Garmin.

You may want to better understand this before relying on the G5 as your primary ADI.

Posted By: Flyer
Date Posted: 14 Jun 2018 at 7:28pm
Interesting... do you happen to have the link for that thread?

Posted By: Gring
Date Posted: 14 Jun 2018 at 8:16pm
Here is the thread with the original problem identified." rel="nofollow -

Here is the follow up once they did some diagnosis" rel="nofollow -

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