I have a dual screen G3X, non touch system with a GTN 650 and the GX auto pilot.
I recently upgraded the GDU37X screens from software version V11.70 to V11.80. am running V6.41 in the GTN 650. It seems that since the upgraded software in the GDU's my altitude hold will not remain steady, wants to vary +- 100'. The altitude hold has always been rock solid prior to the software change.
Is it possible that the new software is the cause of the auto pilot's vnav issues?
Should upgrading the GTN SW. resolve the issues?? Can I go back to V11.70.
Dick
I recently upgraded the GDU37X screens from software version V11.70 to V11.80. am running V6.41 in the GTN 650. It seems that since the upgraded software in the GDU's my altitude hold will not remain steady, wants to vary +- 100'. The altitude hold has always been rock solid prior to the software change.
Is it possible that the new software is the cause of the auto pilot's vnav issues?
Should upgrading the GTN SW. resolve the issues?? Can I go back to V11.70.
Dick