Trust me. The way that the Powercall hits its peak weird, I could see how you would think the whole Eq thing, but that's most likely someone using the center button that would hold that tone at it's highest frequency as long as the button was held. Look up classic GE Powercall. A lot of sirens back then had wails like that. Take into example the GE Powercall and the Federal PA-5.
I called to report that my nabors house was on fire. I know 1 reason why 1 station got there so fast because it was 100 feet away but like 20 seconds later a ladder truck and to engine trucks came and i know for a fact that there station is 2 miles away
