IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM

Print Page | Close Window

IFD 540 Aural Alert

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
URL: http://forums.avidyne.com/forum_posts.asp?TID=1234
Printed Date: 18 May 2024 at 7:42am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com

Topic: IFD 540 Aural Alert

Posted By: FEisert
Subject: IFD 540 Aural Alert
Date Posted: 28 Feb 2017 at 4:09pm

I assume that the IFD 540 should be giving me aural alerts during different conditions such as a 500' altitude during an approach. Mine is not doing that. Is this a functionality that comes with 10.2? Or perhaps the unit is not wired correctly. Any help would be appreciated.

Replies:

Posted By: AviSimpson
Date Posted: 28 Feb 2017 at 4:21pm

First step would be to verify the wiring to the audio panel. The current release supports the 500' call out.

-------------
Simpson Bennett
Avidyne Corporation
Product Manager

Posted By: oskrypuch
Date Posted: 28 Feb 2017 at 4:27pm

You can go to the audio volume page. Changing the volume will result in aural annunciations of the level. If you don't hear them, you very likely have a wiring issue, or some other similar issue.

(Pilot Guide, pp. 4-1 - 4.2)

* Orest

Posted By: FEisert
Date Posted: 28 Feb 2017 at 4:27pm

Ok, it sounds like the wiring to the panel would not be the same as the typical coms wiring. Could you lead me to correct section in the install manual?

Posted By: oskrypuch
Date Posted: 28 Feb 2017 at 5:42pm

You need one additional wire pair from the IFD to an unswitched (or switched) audio input on your audio panel.

There are are two audio output ports on the IFD, clearly outlined in the docs. They both have an identical audio data output. One mirrors the electrical audio output of a full GNS unit TAWS setup, the other is unique to the IFD. Doesn't seem to matter which you use, they just have slightly different impedance levels.

* Orest

Posted By: ddgates
Date Posted: 28 Feb 2017 at 6:32pm

Order:

Could that choice be causing a very echo-like audible I'm getting on the airspace and 500 ft alert annuciations? I'm thinking impedance mismatch?

-------------
David Gates