Rare 530hz Whelen WPS-2905 Siren Test - Marshall, Minnesota

Date: 10/1/2025 Location: Justice Park, Marshall, Minnesota This was the first recording I got from this month's test, and it was quite the discovery! There are only a handful of these 530hz Whelens known to exist, and I was certainly not expecting one to appear in this little backwater town. Thanks for watching! © Michael A. 2025 You know the deal fellas, don’t copy or re-use my stuff without my permission. Any unauthorized use of my content will be reported and removed. You have been warned.