> 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/dvl-75/mounting-the-dvl-components/all-in-one-and-most-in-one-mounting-considerations.md).

# All-in-One and Most-in-One Mounting Considerations

The All-in-One and Most-in-One configurations have mounting constraints based on visibility of the sensor to the bottom, and the GPS (if referring to the All-in-One) to the sky when surfaced. See the next four figures for examples.

![Side view of an all-in-one DVL mounted on the thruster guard of a BlueROV2 Heavy. The all-in-one DVL can be challenging to mount; the GPS needs to be emergent when the ROV is surfaced; the unit needs to be positioned away from magnetic fields; and the sonar beam cones need to be unobstructed.](/files/RYWuaz79J4JueNE4qHTH)

![Front view of the all-in-one DVL mounted on the thruster guard of a BlueROV2 Heavy. The sonar cones are accurate to scale for the minimum fly altitude of 30 cm from sensor to bottom. The port-side sonar beam clears the side and bottom panel of the ROV housing. See also next figure.](/files/HKHySWBQ4QesNT8AuBXK)

![A bottom view of the all-in-one DVL mounted on the thruster guard of a BlueROV2 Heavy, showing the port sonar cone clearing the ROV housing. In real life the sonar beams are not nicely hard-edged like the illustration. You may need to experiment to find the current mounting location.](/files/RexkwvptbfThRBdRl1yI)

![View looking straight up the port sonar beam. This configuration also shoots through the payload sled, if there is no payload in the beam path.](/files/sSZzA4SKnVgN146cRWhA)