Has ATI ever updated their tone panels, or are these the factory options they've been releasing since getting into the siren business? I'm not sure at all. I knew they went from the REACT 4000 to the REACT 5000 and went from the 1000 Hz alert tone to the 576 Hz alert tone, but other than that, I do...
But wait a minute. The various YouTube videos documenting the June 13, 2022 tornado warning in Chicago seem to mention that the sirens sounded in excess of 30 minutes, and that a good amount of the 2001s ended up dropping in pitch/generally sounding unhealthy. Could this end up in more sirens replac...
They are not upgrading the whole system, as I have confirmed with someone responsible for maintenance. That was what I was talking about- they're not deliberately upgrading the system. Just replacing sirens as they die. My phrasing may have been a bit odd, but the meaning is the same. I brought up ...
https://www.youtube.com/watch?v=B3xCcR59JRQ I tried… You know, that's actually pretty good! This is the type of Whelen controller I was referencing: https://www.youtube.com/watch?v=zBBGkSFRkhE The lowest pitch on the attack signal isn't quite as low as your synth, but it's still decently accurate.
Yeah, Chicago's system is from the 90s. In fact, I think they're one of the few large cities still operating the Federal Signal MC Controller on their electronic sirens. It's only a matter of time before those 90s electronics start having issues. This is total speculation, but I tend to believe they...
It's possible that the ATI sirens in Sarnia Ontario do the air horn tone. Of course, I can't discount the possibility that they might be a custom signal- after all, the old Alertronics did a signal with very similar timing, yet was longer than ASC's official air-horn tone at the time. I'm also ponde...
This is extremely fascinating, I have always wondered about what tones ATI sirens were capable of. I have yet another video to add to the mix of the wavering mystery. https://www.youtube.com/watch?v=rU3n7Jb1xnY This is a video of an ATI siren in Spencer, Massachusetts sounding an unfamiliar attack ...