1. Adjust the ELC to have an on/off switch for steady pulse instead of having to manually input your command every time you want to use it. Echolocation is one of the most fascinating natural phenomena ever, but we learned to emulate it in 1915. Giving it an auto setting just makes sense.
2. IRL echolocation presents advantages over night vision and infrared. It would be great to see some of these implemented ICly.
2a. Did you know dolphins can use sound to tell the difference between a golf ball and ping pong ball by density? What if your ELC could tell you what density and size that shrouded iron slinger is shooting at you? Or from the block over? Or detect a sniper's round in transit? This could be applied across all sorts of items/vehicles/etc.
2b. Echolocating bats can guage distance with sub-centimetre accuracy. Apply that to the ELC, and enjoy a boost to perception. In this way, it could fill a niche that cyberware/nanos currently don't.
3. Ping the room ahead of you? How about asocket upgrade for 360° pulse. The upgrade takes up another socket, but you get to see what's going on in EVERY adjacent room at once.
4. Detecting sneaks in a unique way? Could pose a higher lvl skill check to trick sonar when ducking through a crowd. Similar to another piece of chrome.
Any thoughts or other ideas? Catches or drawbacks? Floor is open.