DFC90/DFC100 Digital Autopilot

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DFC90 and GTN650

Printed From: Avidyne
Category: Avidyne General
Forum Name: DFC90/DFC100 Digital Autopilot
Forum Description: Topics on the Avidyne DFC Digital Autopilots
URL: https://avidynelive.com/forum_posts.asp?TID=239
Printed Date: 26 Mar 2026 at 2:11pm
Software Version: Web Wiz Forums 12.07 - https://www.webwizforums.com

Topic: DFC90 and GTN650

Posted By: jecuk
Subject: DFC90 and GTN650
Date Posted: 22 Oct 2012 at 12:21pm

Given that the newer G systems can output VNAV enroute, is it possible for the DFC90 to fly those crossing altitudes or waypoints?

Replies:

Posted By: AviJake
Date Posted: 22 Oct 2012 at 2:28pm

I'm afraid we have no idea. We don't have any access to the message protocol. However, the vertical data for the DFC90 to follow comes from the PFD so even if we had the protocol data from Garmin, and if it were somehow compatible, there would be quite a bit of work required.

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Steve Jacobson
sjacobson@avidyne.com

Posted By: jecuk
Date Posted: 22 Oct 2012 at 2:42pm

OK thanks. So the vertical data is handled differently from the NAV data which I presume comes straight to the DFC from the 430ws etc now.