AHRS Troubleshooting


AHRS Troubleshooting

Table Of Contents



(Note: applies to the first two generations of the AHRS upgrade. Not applicable for the v3 upgrade sold starting 5/1/2018.) This is usually caused by the light pipes (small clear plastic tubes that go from the top to board). You will need to trim them. This can be done using a pair of sharp-edged wire cutters or toenail cutters. Cut off a very small amount (1/16″) from each pipe and check the fit. Repeat until the top fits properly.



Running The System With AHRS


The AHRS software update has not yet been installed on your system. Please update your FlightBox to the latest firmware release. (Note that the AHRS upgrade kit v3 does not include indicator LEDs and requires at least version 1.4r5.)








You may need to set the orientation to match the way your FlightBox is mounted. On the Settings page, tap the “Set AHRS Sensor Orientation” and follow the instructions. If the display continues to sag or otherwise not match the actual orientation, use the “Calibrate Gyros” button to force a recalibration.

6. The GPS on the AHRS board is not getting a lock, or the lock is intermittent. (Only applies to the first generation AHRS upgrade. The v2 and v3 AHRS upgrade kits use an internal or remote USB GPS.)




AHRS and EFB Applications



2. The synthetic vision display in ForeFlight is jittery.

Update to version 1.4r5 or later. This replaces the original approximated attitude value with a much more precise value and eliminates the jitter.