> For the complete documentation index, see [llms.txt](https://docs.ceruleansonar.com/c/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ceruleansonar.com/c/ethernet-rov-locator/configuring-the-rovle/omnitrack-configuration-options/gnss-antenna-mounting-rotation.md).

# GNSS Antenna Mounting Rotation

<figure><img src="https://2814148991-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlN2lfY7yE0hWlcn6W1BS%2Fuploads%2FjzIZRs1stABGJG0py6I7%2Fimage.png?alt=media&amp;token=9f0189eb-6a9e-4b55-aab4-c2ff0cb26085" alt=""><figcaption></figcaption></figure>

The GNSS Antenna Mounting Rotation is used if the X axis of the GNSS Compass orientation frame is not parallel to the X axis of the ROVLe orientation frame. See [here](https://docs.ceruleansonar.com/c/omnitrack/) for a diagram.