> 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/ethernet-rov-locator/rovl-coordinate-systems-and-angles/receiver-transceiver-orientation-frames.md).

# Receiver/Transceiver Orientation Frames

![View of Standard (one penetrator) top of Mk II Transmitter or Mk III Transceiver](https://content.gitbook.com/content/lN2lfY7yE0hWlcn6W1BS/blobs/qsqix4Osyvu1SqtCMv6E/image.png)

![Mk II package receiver angles. Mk III angles correspond to this.](https://content.gitbook.com/content/lN2lfY7yE0hWlcn6W1BS/blobs/X1ySnxzfIRWtf2yNo4vw/image.png)

<figure><img src="https://2814148991-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlN2lfY7yE0hWlcn6W1BS%2Fuploads%2FDPTAmNrrRWIn387d2ykP%2Fimage.png?alt=media&amp;token=8c4e46c0-1543-41ef-9892-0a438c462153" alt=""><figcaption><p>Omnitrack (three penetrator) Top</p></figcaption></figure>