> 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/omnitrack/gnss-compass-mounting-dimensions.md).

# GNSS Compass Mounting Dimensions

The GNSS compass antennae should be spaced as far apart as practical. Heading is measured from the BASE antenna toward the ROVER antenna.

<figure><img src="/files/eZBy75iBKOGXqJYRAzBl" alt=""><figcaption><p>SIDE VIEW</p></figcaption></figure>

<figure><img src="/files/o601Sd50kSmKudxZCgvZ" alt=""><figcaption><p>BOTTOM VIEW SHOWING MOUNTING SCREW HOLES</p></figcaption></figure>

<figure><img src="/files/Wm0nuHS8EiQClDkDkWvz" alt=""><figcaption><p>TOP VIEW</p></figcaption></figure>

<figure><img src="/files/lSTwBjUILePvLVCx9pgT" alt=""><figcaption><p>BOTTOM VIEW SHOWING O-RING GROOVE</p></figcaption></figure>