I've made this map and it shows its current system and old system, and added the coverages for the 2001s, 508s, and other such sirens, please let me know if there's any more locations, thanks! https://www.google.com/maps/d/u/0/viewer?mid=1k7oUSRxF2lPP7_5E5FMELWghaCki2no&ll=35.159816464588594%2C-...
Sorry for the bump, but Amarillo, and PANTEX testes their sirens on the Last Friday of the month at 11:30 AM. (weather permitting)
Canyon, TX testes their sirens on the Last Friday of the month at 12:00 Noon, weather permitting.
Here's a map I've created for New Mexico, it's completed mostly. Some sirens might be not showed due to sirens being removed most likely. This map does a form to update it. The map is mobile friendly and has testing times, enjoy! https://www.google.com/maps/d/viewer?hl=en&mid=1Ndah1mM7sdcc5D0zjW...
Well the Mineola 1003 used to have this kind of design which people found it very interesting and cool, but the fire station was rebuilt, so the 1003 is yellow as of now, but before it was repainted it looked like this.