[kryogen1c]

> big moving parts (e.g. the rotor)

The shaft and screw are confined to the end of the sub. A navigation instrument like this would not be in the engineroom.

[otikik]

It is still way closer to the instrument than the deep end of the sea, most of the time. Square of distance is a very potent thing.

I am reminded of this:

https://www.theguardian.com/science/2015/may/05/microwave-ov...

[RobotToaster]

Imagine spending 17 years to find the source of interference, and it's just Kyle with his chicken tenders.