Blue1003 wrote: ↑

Sat Jun 14, 2025 9:57 pm

https://www.google.com/maps/d/embed?mid ... 704034&z=4 I made a map of thunderbolt 1003 sirens

When I click the link it says I don't have access. You'll need to make the map public for everyone to access it.

As some of you know Los Angeles has well over 200 sirens. some notable models are FS model 5/7's, FS SD-10's, FS 500 SHTT's. It probably has the most well known civil siren system. There is also a few B&N mobile directos, and one or two FS 2T22's. Also, there is some mystery siren that looks li...

Everyone, let's please keep the discussion here professional and factual. If you have relevant facts/info to share, then please do so. Please do not start rumors/hearsay or begin posting repetitive information similar to what was in the previous Hurricane thread that was locked. If this thread keeps...

masons1122 wrote: ↑

Tue Feb 18, 2025 5:24 pm

mods you can lock this now I guess

Thread locked at author’s request. If @masons1122 would like to contribute more to this thread, PM me and I can unlock it for you.

As we all know, Xenia, Ohio was struck by a Huge tornado in 1974. Back then, Xenia had a system of Thunderbolts. There is only one recording of the sirens in "Action". However, I am to believe that these are not true recordings, But rather images with edited in audio. It even shows a SD-1...

As we all know, Xenia, Ohio was struck by a Huge tornado in 1974. Back then, Xenia had a system of Thunderbolts. There is only one recording of the sirens in "Action". However, I am to believe that these are not true recordings, But rather images with edited in audio. It even shows a SD-1...

Blue1003 wrote: ↑

Sun Jan 12, 2025 10:21 pm

I have one but it is WIP
https://www.google.com/maps/d/edit?mid= ... 740145&z=5

Your link is restricted. We cannot access it because you have not given access to anyone who has the link.

I just recently got a Uniden radio scanner for christmas, and I wanted to know how to find the channel that the sirens use to be activated by. I don't know if the channel can only be found while the tones are being transmitted, or anything else. If you know the channel for Lansing, please let me kn...

I did some more research on Wilmington's original system that consisted of two Federal Thunderbolt 1000(T)'s and a Federal 2T22, each of which were initially installed in 1978. I also wanted to contribute some other information I found about the original and current systems. Newspapers.com now has W...

Here are some photos of the Bloomington T-Bolt and some controls from a T-128 in Anoka https://drive.google.com/file/d/1thk_oiZ41jmcGuSISeHXd-onil6zMuOs/view https://drive.google.com/file/d/1U2zfIm-_XnQ2fDRvqMoGA3e576GJtnm8/view https://drive.google.com/file/d/1f0BcEMltbV1BvecUrtTwTbjNsJJMO4lS/view...