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

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Gps reset week

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=1723
Printed Date: 18 Apr 2024 at 6:03pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com

Topic: Gps reset week

Posted By: Rvdave
Subject: Gps reset week
Date Posted: 08 Apr 2019 at 9:39pm

I’ve heard recently about gps rollover week sort of like the y2k scare years ago, but this one must be different, my ifd550 master clock just reset to August 1999. How do I get it reset ?

Replies:

Posted By: HenryM
Date Posted: 08 Apr 2019 at 10:17pm

Get the GPS rollover patch at https://lz314.infusionsoft.com/app/form/gpsrolloverupdate?fbclid=IwAR0uw678fDuGEsL9nv4LXUZ_13tNWl3ed1L5eKAPe-wN4S09Z5iQBnhZbwo" rel="nofollow - https://lz314.infusionsoft.com/app/form/gpsrolloverupdate . Your avionics shop can also get it for you.

Posted By: rpostmo
Date Posted: 10 Apr 2019 at 10:49am

I just did the rollover patch on my IFD-540.

I have a ~5yo battery kept on a maintainer.

I have a cigarette lighter voltmeter.

I turned all of the avionics off except the 540.

The uptdate took only about 10 minutes to complete, but

I had the master and avionics master and 540 on for 30 minutes

to complete going through the verification of files etc. It would have

been less had I not forgotten to open the PDF file on my laptop

with the service bulletin and had to re-download on my phone to go

through the verification procedure.

Through the 30 minutes my bus voltage actually increased on the voltmeter

from 11.1V to 11.2V. When I turned all of my avionics back on the voltage

decreased to 10.9 volts almost immediately.

So:

Start with a good battery in the airplane.

Keep the battery maintainer plugged in and all unnecessary current draws turned off.

Have the Service Bulletin open on your laptop or phone before you start.

Follow the procedure...quite simple actually.

In my case I didn't need an external power source.

BUT: This is just recounting my experience. Do not consider it instructions

for your airplane. Follow the Avidyne procedure!!!!

Posted By: cvela90
Date Posted: 15 Apr 2019 at 6:59pm

I updated April 12th. I saw no difference before/after (meaning no problems). Saw an UTC mismatch message after update but I had seen it about a month ago also.