How do I remove the obstacle database from the device?

Obstacle databases have an expiration date, after which the device starts to issue errors at startup. The errors are not permanent, so the device is functioning normally afterward, but this can still be annoying if the database is not needed in the first place. Removing the database also increases capacity for (IGC) flight recording on Classic devices.

The process for removing the database for good is slightly different for either Classic or PowerFLARM-based devices. If you are unsure about which technology your device contains, our Product Selector may be of help.

Both cases require the application of a configuration file. You can use our online Configuration Tool, or download a pre-built file from below. Applying the configuration file may be a bit different depending on your device, please check the manuals.

Classic FLARM

In Classic, memory is shared between the obstacle database and flight recording. Removing the database hence roughly doubles the space that is available for flight recording. However, clearing the obstacle database also deletes all flight records! So make sure to download the logs before proceeding.

In the configuration tool, the following item must be set to "Yes". The checkbox "Show advanced settings" must be enabled for this to be visible.

Alternatively, you can simply use the dedicated file below which only clears the memory, but leaves other configuration items intact.

PowerFLARM

On PowerFLARM devices, it is possible to erase the obstacles independently of the IGC flight records. The item to enable in the web configurator is shown below. Again, the "Show advanced settings" checkbox needs to be checked for this to be visible.

We have also prepared a dedicated configuration file below that deletes the database, not modifying anything else.

Files