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Unable to track GPS signal

Posted: 28 Dec 2017, 19:41
by Ifikratis
Hi all,

I am facing an annoying problem with my A2A airplanes. This is not related to the Piper Cherokee only, but also the Piper Comanche. I haven't tried the Cessnas yet.

I use the Flight1 GTN 750.

So, what happening is that I get the INOP/NAV switch and having selected the 'GPS' option in the GTN CDI option, I still can't get the autopilot to track the GPS.

To better demonstrate it I attach three pictures, where I select a DCT with a small offset from my course.Before this problem appeared (I don't recall when started) it would normally turn and track the GPS.

Image

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I tried to uninstall and reinstall both A2A and GTN, but the problem persists. Do I do something wrong?

Looking forward for your reply! :)

Re: Unable to track GPS signal

Posted: 30 Dec 2017, 08:25
by Ifikratis
How can I get support over this? any ideas? :/

Re: Unable to track GPS signal

Posted: 30 Dec 2017, 08:37
by LZ-WIL
Hi,

Do you have the GPS/Nav switch also "inop" with the standard GNS 400? Have you tried to run the Aircraft configuration tool as a system administrator?

Happy holidays,
Will

Re: Unable to track GPS signal

Posted: 30 Dec 2017, 09:51
by Ifikratis
LZ-WIL wrote:Hi,

Do you have the GPS/Nav switch also "inop" with the standard GNS 400? Have you tried to run the Aircraft configuration tool as a system administrator?

Happy holidays,
Will
Hi, thanks for the reply!

Yes, I have tried also to set the switch to "Inop". The result is the same. Also, I always start the aicraft configuration tool as administrator.. :/

Happy holidays,
Ifikratis

Re: Unable to track GPS signal

Posted: 30 Dec 2017, 10:02
by Bbeach80
Had the same issue , cherokee will not track the GTN750 but will track GTN 650 with no issue!

Re: Unable to track GPS signal

Posted: 30 Dec 2017, 10:23
by Ifikratis
Bbeach80 wrote:Had the same issue , cherokee will not track the GTN750 but will track GTN 650 with no issue!
Then could it be a problem with Flight1? I have the same issue with the Comanche..I run the latest update from Flight1.

Re: Unable to track GPS signal

Posted: 30 Dec 2017, 21:58
by Ifikratis
Ok, I believe I fixed it. After reading on Flight1 forums, I saw that people had the same problem and some suggested to re-download and install the latest version. Could be some bug on the initial F1 installer I guess.. Now it follows the GPS track. The roll rate is very small though, so the plane does not follow the magenta line precicly in turns, but it gets there after some left and right banks. I suppose that's the normal function of this autopilot?

Re: Unable to track GPS signal

Posted: 31 Dec 2017, 10:55
by Lewis - A2A
Yes that sounds about right, remember to use the relevant AP mode for your GPS course, but for sure its not a fly by wire and forget airliner, theres a yoke in front of you, you will want to use it.

thanks,
Lewis - A2A

Re: Unable to track GPS signal

Posted: 31 Dec 2017, 11:02
by Ifikratis
Yes of course..thanks for the confirmation Lewis. I really enjoy hand flying my A2A fleet. :)

Wishes for a happy and creative new year : )