The Spring Hill Amateur Radio Club will set up an emergency working radio field station today on the grounds of the Florida Army National Guard, Third Battalion Special Forces, Group Airborne, 16110 Aviation Loop Drive (across from the Hernando County Jail) on Spring Hill Drive. Starting at 10 a.m., club members will work 24 hours straight to contact thousands of other stations set up across North America. The field-day event is conducted in conjunction with the American Radio Relay League and is a way for amateur radio operators to fine-tune their emergency communication skills. The event is open to the public. For information, call Bob Bock at 597-2018.