lml@lancaironline.net Mailing List Archive

Russell,

I had the same issue with mine. My problem was not with either the autopilot/settings or the G900 electronics and you are correct that the new software does work well .

The newer Sorcerer software enables communication with the 900 through the previously unused AIRINC bus. This new data path is used for baro/etc. functions which are working properly per your description. If the Sorcerer display shows "NO GPS" it means the 232 bus is not functioning. Look for problems there. The 232 connection is between the 900 GIA2 and the Sorcerer. The 232 is the path that is used for all of the altitude,heading information which the 900 supplies. In my case the 232 bus had an intermittent short eventually traced to some contamination (suspect a tiny carbon fibre) which when cleaned up allowed everything to work fine. If the Sorcerer display says anything other than "NO GPS" then the 232 path is OK and all should be OK.

Send me an email offline with your phone number if your issue is different and you think I can help.

Jack Morgan

On Apr 5, 2012, at 6:01 AM, Lancair Mailing List wrote:

From: "Russell" <n2aa@att.net>
Subject: G900 software V10 autopilot communications
Date: April 4, 2012 4:08:27 PM EDT
To: lml@lancaironline.net

Okay, I've upgraded my Saucer autopilot the latest software and the Garmin G900 software to version 10. I'm able to get barometric pressure to change but unable to get heading and altitude settings from the G900. I have tried every setting in the GIA page in the G900 with no success. Garmin & Tru Trac has tried to help me through this, unfortunately no resolution at the moment.

I have heard that it does work but unable to reproduce it on my system.

Has any of you done the upgrade to your systems and is it working? If so what is your settings and what did you do to make it work?

Thank you for your help
Russell Steiner
N2AA legacy