> 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/tracker-650/technical-details/oem-kit/transducer-geometry.md).

# Transducer Geometry

Transducer geometry is crucial for device accuracy. The three traducers all face downward at 20 degrees off vertical. Transducer A is inclined toward the bow or +X direction. Transducer B is inclined to the starboard side at 120 degrees from Transducer A. Transducer B is inclined to the port side at 120 degrees from Transducer A. Note these are the neutral position — if your mounting is rotated in any axis you can set a mounting orientation, as described [here](/c/tracker-650/technical-details/coordinate-systems.md).

It is not required that the transducers be mounted in a circular pattern. They can be in tandem or abreast or in other patterns, as long as the angles are maintained.

<figure><img src="/files/jMAWolvPqWG7iaoIZpSb" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/3vNdpPSajCpmAXkXiRL5" alt=""><figcaption></figcaption></figure>