From ARRL News on September 22, 2021:
The weekend of October 2–3 is designated for holding the annual ARRL Simulated Emergency Test (SET), although local and Section-level exercises may take place throughout the fall. The SET is ARRL’s primary national emergency exercise and is designed to assess the skills and preparedness of Amateur Radio Emergency Service® (ARES®) volunteers, as well as those affiliated with other organizations involved in emergency and disaster response.
The SET encourages maximum participation by all radio amateurs, partner organizations, and national, state, and local officials who typically engage in emergency or disaster response. In addition to ARES volunteers, those active in the National Traffic System (NTS), Radio Amateur Civil Emergency Service (RACES), National Weather Service (NWS) SKYWARN©, Community Emergency Response Team (CERT), and a variety of other allied groups and public service-oriented radio amateurs are needed to fulfill important roles in this nationwide exercise.
The SET offers volunteers an opportunity to test equipment, modes, and skills under simulated emergency conditions and scenarios. Individuals can use the time to update a “go-kit” for use during deployments and to ensure their home station’s operational capability in an emergency or disaster. To get involved, contact your local ARRL Emergency Coordinator or Net Manager. 1
“The 2021 ARRL Simulated Emergency Test (SET) is Just Ahead”, ARRL The national association for Amateur Radio, accessed September 27 2021, http://www.arrl.org/news/the-2021-arrl-simulated-emergency-test-set-is-just-ahead ↩︎