Most beautiful sounding siren imo love how it’s constantly rotating between an 8 port and 12 port side, creates quite a pleasant harmony. Shame more sirens weren’t made in this unique config
Thank you for rerecording this! I love this eye-level shot. The place where you set up really allows each side of the siren to show their dominance when faced towards you. Awesome video, keep it up!
Wow this still works super well to this day. Glad they're still maintaining it. I think this is the only 500-DHTT in the US. I hope Calhan keeps this amazing vintage piece of engineering running for many more years.
I was around the corner next to the church so I wasn't shooting against the sun. I wanted to go up the alley some but there was a guy filling the propane tanks in the alley and his truck was making all kinds of noise. I'm pretty sure I drove past you on my way out. I have a red WRX.
I remember hearing this from my house many years ago. We didn't know they tested the siren (or that Calhan had a siren for that matter) so we had no idea what to make of it
I bet this thing sounds awesome from a distance. I bet it alternating between 8 and 12 port makes it distinguishable from a distance more than a regular siren.
One of my friends out there heard it from Palomino Dr, which is about 6 miles west of Calhan. That sound most definitely carries well over the open terrain there.
Yeah they are super rare this is 1 of 7 or 6 left in the world currently this is the only known one that is still in operation. And yes it is still here in 2023 as I went to go record a short video of it.
lol I remeber back when everyone was calling this a 500AT good video though still healthy as can be. Looks like they finally got a radio on it. I was there once to see it in person and back then it was manually activated,. Great video tyler.
@@UmbreWolf The small antenna is for Calhan Police Dept. They're on the 800MHz trunked system for interoperability. The large antenna is Calhan Volunteer FD. Several VFDs around there operate on the 150-170MhZ (2m band) VHF.
The old FS 550AT IS ANOTHER NAME FOR THE UNIT. What a beautiful siren test and it really does need a new paint job with some FEDERAL SIGNAL LOGOS ON IT if was up to me I'd prefer a white paint job with some FEDERAL SIGNAL LOGOS ON IT JUST to make it look more modern.
@@BRISTOLFORCE2009 if you are talking about Yonkers, NY then you are wrong. Those are literally inactive and rusted! 😂😂😂 If they were active they would’ve been recorded as literally every siren in NY has been recorded multiple times. Here is a tour of them ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XPEuSeyha0U.html
@@TylerShawWx am the same person on a different account I finally saw this thing while i was heading to Kansas of course it was when it didn’t test. But yes I saw it! I posted a short on it.
@@BRISTOLFORCE2009 So 5/6 and 6? I mean 4/5 port I would say carries further than 5/6 or 5 port because of it’s undertone. It also carries the furthest with a 5M blower