# 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="https://1968122395-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiGep5P4JoGKQtExRT40W%2Fuploads%2FsIPwPj8rrpbUGe4YjkPb%2Fimage.png?alt=media&#x26;token=59441b19-2b7b-403c-8c0f-b1dacf32e29e" alt=""><figcaption><p>SIDE VIEW</p></figcaption></figure>

<figure><img src="https://1968122395-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiGep5P4JoGKQtExRT40W%2Fuploads%2FgpYBkJXbBwnfv0RCG2yr%2Fimage.png?alt=media&#x26;token=6fed41ae-509f-4edd-8fb2-a2edbc3ff8ea" alt=""><figcaption><p>BOTTOM VIEW SHOWING MOUNTING SCREW HOLES</p></figcaption></figure>

<figure><img src="https://1968122395-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiGep5P4JoGKQtExRT40W%2Fuploads%2Fi8ENPuCNLH9EMt6vJuwU%2Fimage.png?alt=media&#x26;token=87991629-3d15-42c3-8c8f-63fa58a61285" alt=""><figcaption><p>TOP VIEW</p></figcaption></figure>

<figure><img src="https://1968122395-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiGep5P4JoGKQtExRT40W%2Fuploads%2FMgDHHgMZ8lxysCS0EhzH%2Fimage.png?alt=media&#x26;token=eb02da53-685e-4f0e-8899-049a7ae1b4c3" alt=""><figcaption><p>BOTTOM VIEW SHOWING O-RING GROOVE</p></figcaption></figure>