re http://www.sara.com/ISR/UAV_payloads/OCA.html

Interesting.
“Only consumes 1 watt of power.
Passively monitors 122º x 10º field of regard.”

If it’s in a drone, and flies much faster than gliders, it should pick most of us up.

But not so good for glider to glider. Many of our collisions involve one behind the other so only one (same as “see and be seen” has the chance to initiate avoidance.

Chris N