American Signal T-135AC Siren Test | Full Alert | Hudson, WI | 6/7/23

Location: Weitkamp Park
System: St. Croix County
Test time: 1st Wednesday of the month at 11 AM
Enthusiasts present: Dylan (‪@xXSo1arGamingXx‬), Tommy (‪@buckeyenotifications‬), Mikey (‪@mnsirens‬), Asa (‪@WisconsinSirens‬), Preston (‪@wisconsinoutdoorsirens1250‬), Emmit (‪@SirensOfWisconsin1679‬), Logan (‪@minnesconsinsirens6803‬), ‪@MidwestEmergencySignals‬

For the first Wednesday, Dylan, Tommy and I met up with Mikey and Asa (and coincidentally a few other enthusiasts) at the infamous Hudson P-50/T-135AC. This particular one probably has more recordings than any other P-50 out there, but we decided to come here anyway because word on the street is that this is one of the loudest P-50s out there. They were about 4 minutes late with testing this month, but I knew the second I heard the clank of the contactor that it was go-time.
The very first time this beast faced me, I was absolutely gobsmacked to see my meter hit 120.8 dBC from over 400 feet away! From there, I made my way over to the dirt mound next to it, which puts you on about 20-ish feet of elevation. From the top of the dirt mound, I got a max reading of 126 (Tommy got 124.3 dBA), and I felt the sound throughout the ground and my whole body every time it faced me. For a brief moment, I lifted off the left side of my hearing protection when it faced me...and to say that this thing is loud is an understatement. After the test, my left ear felt a bit sore just from that 5 seconds of exposure. Anyway, I think it's safe to say this takes the cake for the loudest siren I've ever heard. Enjoy!

Tight shot: Canon PowerShot SX60 HS
Wide shot: Sony HDR-PJ710
Audio: Zoom H1n