IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM - IFD440 swapping active/standby freqs on its own

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IFD440 swapping active/standby freqs on its own

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=1336
Printed Date: 27 Apr 2024 at 2:10am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com

Topic: IFD440 swapping active/standby freqs on its own

Posted By: vcollazo
Subject: IFD440 swapping active/standby freqs on its own
Date Posted: 23 Jun 2017 at 4:23pm

3 timesover 2 flights on separate days into/out of KALB IFD changed my standby freq into the active on its own. IFD 100 was not in use. Has anyone else ever seen this? Logs have been downloaded and sen to Avidyne. In looking at events log, when the freq change was intentional the keystroke sequence was L6L press and release, but unintentional was L3L press L6L press L6L release L3L release. I've figured out L6L is the freq swap line select key, but have no idea what L3L could be. In 7 months of using the IFD I have never seen this before.

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vcollazo

Replies:

Posted By: oskrypuch
Date Posted: 23 Jun 2017 at 5:26pm

Do you have a single unit, or two IFDs?

Was your iPad connected, even if the IFD100 was not running?

* Orest

Posted By: vcollazo
Date Posted: 23 Jun 2017 at 10:07pm

It is single unit. Can't remember if at that time Ipad was connected to the 440 or to the stratus. It was probably connected to Stratus for Nexrad, but can't be sure.

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vcollazo

Posted By: bobcain
Date Posted: 24 Jun 2017 at 5:12pm

I haven't looked for sure, but there is probably a remote input to switch them. Could this be an errant wire or contact unknown to you? Just a thought....

Posted By: oskrypuch
Date Posted: 24 Jun 2017 at 5:21pm

Yes, there is a remote freq flip input, as I have it wired in my plane.

* Orest