The Simulated Emergency Test (SET) is an annual nationwide emergency communications exercise with three goals:
Test the Amateur Radio Emergency Service (ARES) and National Traffic System (NTS) capabilities and performance in a realistic scenario,
Demonstrate amateur radio's ability to perform in emergency and disaster-response conditions, and
Give operating experience to licensed amateur radio volunteers.
SET occurs in the first weekend of October every year, and is part of a larger government and military exercise known as BLACK SWAN.
The most recent After-Action Report/Improvement Plan can be found here.
Past COTN SET operations: