FedSig-Kid wrote:The sound probably covers better by going vertically across the horizon instead of horizontally.

What if having the narrower side up enables the siren to better resist snow load? I wondered how the cantilevered horn on the old Allertor made it through Alaska winters.

videogamer wrote:If it is not too much trouble, could you take a picture of something next to it to get an idea of how big it is, since to me it looks like a model 2 size, but I have a feeling it is much bigger since it has a 10HP motor.

Well, the floor molding is about 3" tall.

Hypothesis: The two rows of ports, and particularly the rib that runs around the circumference in the middle of the rotor, are there to strengthen the rotor. The rotor looked to me otherwise like it has less material than other rotors I've seen.

500AT, I don't remember how old you are, but you didn't get the chance to find other favorite sirens because the Q has probably been the only choice among electric sirens since you got interested. My favorite will always be the Sterling 30, which the department I was with had a lot of. It's tone was...

Sentry appears to be a using a JoBox for the battery cabinet. Very interesting indeed. Think about it - a Jobox makes a good weatherproof place to put stuff like that - and it may not be Sentry's idea, but the installer's. All you have to do is make the necessary penetrations and a little venting a...

Software glitches are a poor excuse. All this software should be written in Ada* and run on Linux for reliability. Ada has countless advantages for control systems. ========================= *If you write software for the Department of Defense, it needs to be written in Ada for reliability. Ada is b...

What statements of mine are opinionated? That's the wrong question. The right question is, "What's wrong with being opinionated?" The answer is nothing, as long as the opinions are intellectually honest and backed up with some knowledge. What good is a forum except as a place for informat...

r4tbolts wisely said, "Years ago before pagers fire sirens wailed in the middle of the night to summon the Volunteers. This thing now about sirens are for you sitting on the porch, sipping tea on the deck or at the park is a poor excuse for poor siren coverage, crappy sirens (2001's) or sloppy ...

TOLEDO, Ohio - Lake Township emergency crews made a scary discovery Thursday afternoon: a test of the tornado sirens showed one was not working. http://www.toledoonthemove.com/news/story.aspx?id=469072 Never a good thing to find out... What would be wrong with it? Blown decoder? It's an excellent t...

Daniel wrote:In the Aleutians, electricity is state of the art in some places. The loudest thing in some of those villages is the horny local walrus.

A horny walrus may be reason enough for an alert.