[marfish]

long story short, my understand of Ultrasound is:
If there is a big enough hold or gap, I can "see" through it (up to 50m radius, of cause).

The opposing side believe that:
Ultrasound ruquired "LOS". If something is is the middle between you (with ultrasound) and the object, you can't "see" it.

Just want to know, which one is corrent?

[PiXeL01]

Unless it’s an extremely powerful Ultrasound then the opposition wins. All you get to see is a wall or cover

[SunRunner]

Ultra sound is not Daredevil vision which is a common misconception. Daredevil is using something way beyond Ultrasound. Ultrasound gives you standard vision that just lets you ignore lighting mods with in 50 meters(after that your as blind as everyone else) and reduces some other mods 1 column. If the PCs want Dare devil vision the closest they are gonna get is the Ultra wide band Radar cyber ware. That sees through things and has rules for what and how much it can see through. And when the use baby ultra sound and such point out all of those methods involve the emitter and receiver being in DIRECT contact with what ever they are seeing through. If ultrasound saw through things it would have rules like the Radar cyber ware does for seeing through stuff. It also does not see around corners, the sound waves propagate around corners but the return baths are scrambled which makes resolving them into usable data impossible.

[marfish]

what a shame  but thanks