Butchering CBMs from zombies? turns classic mode off.
As for the sonar, great idea but why does it need to be bulky? Maybe if you make some kind of metal detector (give say, a 8x8 range to detect any traps with metal components, i.e bear traps, landmines etc.)
However how about this:
Directional microphone
Primary Skill: Electronics
Req. Skill: 5/6
Tools: Soldering iron, Screwdriver
Materials:
[ul][li]2x Antenna (or x4, ideally most of the space would be used by a fine-tuned antenna.)[/li]
[li]2x Amplifier circuit[/li]
[li]1x Signal reciever [/li]
[li]1x mp3 player (for the headphones, unless someone can think of a better idea to represent headphones/earplugs)[/li][/ul]
[li]10x copper wire (headphone leads, internal wiring)
[/li][/list]
As for how it would work ingame, I can see two options: Fire it like a silenced gun and represent anything moving around the shot terminus as ?s with a margin of error dictated by distance (increases exponentially after say, 15-20 tiles) or use it as a 1-tile wide ‘laser beam’ of hearing up to the same distance, but without much error margin.
Thing is, what is sound? sound is vibration. Directional or directional laser Mikes can pick up these vibrations, try to filter out the noise and boost the output. If you fire a laser mike at a window, you can actually tell what people inside that room are talking about due to the vibrations on the window.
