erm, actually, it's called the SONAR. RADAR stands for Radio Detection and Ranging, while SONAR stands for SOUND NAVIGATION And Ranging.
They're distinct concepts, buddy.
(please tell me I didn't get the acronyms wrong, that'd be horrifyingly humiliating.)

![the look of [U T T E R] derangement. the look of [U T T E R] derangement.](https://img.itch.zone/aW1nLzI0NDM0MTEwLnBuZw==/original/N6rBBZ.png)
