Yearly test of their old Thunderbolt 1003 Press Space to see the original drawing! Siren info: FS&S Thunderbolt 1003ATSA2 DB rating: 124-130 at 100 ft. Port ratio: 5/6 Test time: Every year at 2:25 PM Test duration: 1 minute. Test tone: Attack Sirens heard: Thunderbolt 1000T, Thunderbolt 1003, EOWS 612, 2T22, and 1st Gen 10/12 ACA Allertor. Some facts about the siren itself: The rotator isn't broken, it's disabled. This siren is one of the first sirens Farmerstown, OK got.
