10 a.m.-2 p.m. at Earl Brown Park, in the parking lot at the corner of South Alabama and East Hubbard avenues adjacent to the skate park, 750 S. Alabama Ave., DeLand. The West Volusia Amateur Radio Society will set up and operate portable ham radios. Amateur “ham” operators engage in activities like emergency communications, technical experimentation, and communicating with fellow operators around the world. Free. Visit www.westvars.org.