The 18th Annual Yuma Hamfest is the site of the ARRL's premier event for the Southwest in 2025, The Southwestern Division Convention. The Yuma Hamfest has two aspects. It is a hamfest for Amateur Radio enthusiasts, complete with commercial exhibits, seminars, license testing and tailgating. For members of the general public, it is a trade show for emergency and disaster preparedness, with informational presentations and displays of emergency supplies and equipment.