Dual tone aca allertronic sirens in alaska?

[JCRGH]

https://www.youtube.com/watch?v=J_eLo4cRsvE
I hear some aca allertronics i think and also they are dual tone
can anyone confirm this?

[sirensandfirealarms]

Yep they got an AL-4000. You can see it in this video at 1:26 https://www.youtube.com/watch?v=pIauVbh ... jreload=10

[DJ2226]

The sirens heard in the OP's link are Modulators. The Allertronics are part of Kodiak's system, which consists of a mix of newer and older AL-4000's with analog and digital controls. The newer units are actually dual tone like the 8000's in Rockwall, TX. They're the digital first dual tone electronic sirens I've hear from ASC doing something other than alert. They still use the same 6/7 tone ratio that the older ones had.

Here's a digital one in attack. The camera is on axis with the lower pitched speakers. https://www.youtube.com/watch?v=msFxeJk_ViI

[Snowcube]

Anyone know what siren is heard at 1:15 in this video?
https://www.youtube.com/watch?v=gcfTC1eh6P0

[Chem_Boffin_6589]

Anyone know what siren is heard at 1:15 in this video?
https://www.youtube.com/watch?v=gcfTC1eh6P0

That segment was a Japanese video so it's those Japanese sirens that you hear in the tsunami warnings etc.