Stevan Z wrote: ↑Fri Nov 04, 2022 8:50 pm
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 Ardmore because it just reminded me of their siren replacement scheme, which was conducted in three separate purchases over the span of a couple years.
Stevan Z wrote: ↑Fri Nov 04, 2022 8:50 pm
As for the third 2001-130 in Englewood, this is news to me, and I have no idea why it was installed there, as there is a 2001-SRN a few blocks away.
This isn't completely unheard of. Here in Athens, Georgia, one of the 2001-SRNs was relocated to a new location, but the old pole and whatnot all stayed behind in the original location. Granted, there was no new siren installed, just an old siren relocated. The 2001-130 you mention may have been put there because perhaps the location of the old 2001-SRN may not be optimal anymore (for example if new buildings are constructed around the siren, decreasing the range of the siren).
Either way, the addition of the third 2001-130 makes the confirmation by the maintenance personnel confusing. Normally, you'd never put any siren just a couple blocks apart. The only example I can think of is the Federal Signal 2001-SRN / EOWS 1212 siren combination in Cobb, WI.
https://www.youtube.com/watch?v=ec7n_Jj6sn8 (To put it in context, the 2001-SRN was supposed to replace the 1212, but since the 1212 still kinda worked when the 2001 was installed, they just left it connected.)
Nice pictures by the way! Are you using a standalone camera or an integrated phone camera? (I assume standalone camera due to the file name format of IMG-XXXX.JPG, but you never know)