ARRL Southwestern Division Convention Start Date: 02/27/2026 End Date: 02/28/2026 Location: Yuma County Fairgrounds 2520 E. 32nd St. Yuma , AZ 85364 Website: https://www.yumahamfest.com/ Sponsor: Yuma Amateur Radio Hamfest Organization Type: ARRL Convention Talk-In: 146.84 88.5 Hz Info @ 146.55 S Public Contact: Paul Curtis , KK7NWZ YARHO 11862 S. Foothills Blvd. PMB 240 Yuma, AZ 85367 Phone: 1 (619) 607-0919 Email: curtismedical@yahoo.com