Soundman090 wrote: ↑

Fri Aug 21, 2020 4:22 pm

This is probably a noob question, but are those tones before and after similar to the EAS DTMF start/stop message tones?

These are FSK tones which are very similar to those used for the EAS SAME headers, so yes.

Today was the annual test of the system around the Susquehanna Steam Electric Station near Berwick, PA. This T-121 is one of the outermost sirens, located in Mifflinville, PA at the fire station. Susquehanna Nuclear tests on the 3rd Thursday of August at 11 AM, and I believe this particular siren al...

Here’s another T-121 on the Delaware side of the Salem Hope Creek system sounding for what was supposed to be the third quarterly test of 2020, but is only the second test of the year, as the April test was cancelled amid the coronavirus outbreak. PSEG Salem Hope Creek normally tests on the 1st Tues...

Happy 4th of July! Went out to Ridgely today for the monthly test of the Caroline County community alert siren system. This 3T22 was restored and installed within the last 3 years at the new fire station, and is tested in fast wail on the first Saturday of the month at noon, along with the rest of t...

After about a year of searching Google Maps and driving around the EPZ, my map of the current system around the Susquehanna Steam Electric Station in Berwick, PA, is now 100% complete. These are the locations of all 78 of the current ASC T-121s in the system, which infamously replaced a rejected sys...

May I ask what the second siren is? Doesn't look like any Model 5 or 2 I've ever seen. As far as I can tell, this appears to likely be the Model 7 that was once on the water tower at the FD headquarters, where the new 2T22 is now standing. Very unique looking for sure, even when it had its original...

Also interesting that Ocean City uses their sirens for fire calls, since electronic communication shouldn't be much of a problem there. I can see the benefit of the city's vacationers being made aware of a fire or other emergency happening so they can be wary for emergency vehicles and disaster sit...

I was staying in Ocean City this week when I noticed a freshly restored 2T22 recently installed at the fire department headquarters. Almost immediately, I walked over to get a closer look. It was placed next to a small outbuilding in the fire department parking lot, and the top horns appear to have ...

Here is a T-128 near the Calvert Cliffs Nuclear Power Plant sounding for its semi-annual 3 minute test. Sounds like this particular siren may have run off of its DC battery backup supply for this test; a different way to test considering this is a T-128AC/DC, but it does makes sure the DC backup sup...

Not to be off topic here but why do some municipalities run meters on sirens? These sirens are operated by the Maryland Department of Corrections, and the meters have the BGE logo on them, so my guess is that they are there to measure the energy consumption, likely for electrical billing purposes b...