IFD with Dynon HDX and external backup CDI

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   For redundancy in case of a HDX screen or ADAHRS failure, I'm looking into keeping my GI-106A external CDI that is connected now via the main indicator interconnect (not 429) and connecting a new HDX via ARINC 429 and RS232. I'm worried about the IFD getting CDI VLOC selected course mixed signals due to getting this from multiple sources (resolver from GI-106A and 429 from HDX). 
Does anyone have experience with this configuration?  Is there a priority for the VHF selected course sources?

Edited by brou0040 - 07 Dec 2024 at 9:10pm

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
brou0040 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 13 Dec 2012 Location: KIYK Status: Offline Points: 722	Post Options Post Reply Quote brou0040 Report Post Thanks(0) Quote Reply Topic: IFD with Dynon HDX and external backup CDI Posted: 28 Nov 2024 at 10:24pm
	For redundancy in case of a HDX screen or ADAHRS failure, I'm looking into keeping my GI-106A external CDI that is connected now via the main indicator interconnect (not 429) and connecting a new HDX via ARINC 429 and RS232. I'm worried about the IFD getting CDI VLOC selected course mixed signals due to getting this from multiple sources (resolver from GI-106A and 429 from HDX). Does anyone have experience with this configuration? Is there a priority for the VHF selected course sources? Edited by brou0040 - 07 Dec 2024 at 9:10pm