> 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/topside-rov-locator-floatation-and-mounting-considerations.md).

# Topside ROV Locator Floatation and Mounting Considerations

Whatever system you use to mount the Omnitrack, the following basic operational requirements must be adhered to:

* The GNSS compass requires about 160 degrees of unobstructed sky view, so it must operated away from the GPS/GNSS shadow of your boat, wharf, pier, piling, buoy, dock, raft or mountain. If it's on a boat it must be high enough to make sure it is not obstructed by anything on the boat's superstructure.
* The ROVL transceiver or receiver needs to be at least 1 meter below the surface, and it must be operated away from the sonar shadow or multipath reflection of of your boat's hull, wharf, pier, piling, buoy, dock, raft or vegetation. If it's on a boat it must be deep enough to make sure it is not obstructed by anything on the boat's underside.
* The GNSS compass and ROVL transceiver need to be connected together so they move in the same orientation. The coordinate frames must be rigidly locked.

To accommodate the system requirements, the Omnitrack topside elements are designed to be placed on a floating platform away from the boat and/or other topside obstructions to both the sonar system and the GNSS compass. Cerulean Sonar has two complete options for floatation as seen in the following sections, and it is possible for users to provide their own solutions as well.


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