Authorities have released the names of four Alaskans and a Montana man who were killed in a midair collision of two small planes over a remote area of western Alaska. The collision happened Wednesdaymorning.

On one plane, 48-year-old pilot Harry Wrase of Wasilla and his passengers, 32-year-old Steven Paul Andrew of Kenai and 21-year-old Aaron Jay Minock of Russian Mission, were killed. Also killed were 44-year-old pilot Zach Justin Babat of Montana and his passenger, 40-year-old Jeff Thomas Burruss of Haines.

Troopers say Wrase was flying a Ravn Alaska Cessna 208 Caravan from Russian Mission to the nearby village of Marshall. Babat was piloting a Renfro's Alaskan Adventures Piper Super Cub and heading for a hunting camp. A hometown for Babat was not immediately disclosed.

There were no survivors in the crash northwest of the village of Russian Mission, 375 miles west of Anchorage.

IIRC you are a pilot and spent some time in the Y-K Delta

Is there, or if there isn't, why, a proximity warning system for small aircraft

Something as simple as an avalanche beacon/receiver type set up where when you get within XXXX feet of another aircraft you get a warning

Will it make a difference?
It seems like so many of these crashes are the result of not seeing each other