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Screwball518 (July 12, 2008 at 12:47 pm)
I meant that you could go to a location where you can here a lot of sirens at the same time. You could do it during the test after you record the 3016 in the next test of the DAEC siren system.
bigloudnoise (July 12, 2008 at 2:11 am)
If you mean the EMA office where the test is initiated...I'll have to check with our local EMA director to see if they'll allow it. Not being a county or city employee, there's a chance they might not want me poking around the EMA office. Oh the joys of a post-9/11 world.
Screwball518 (July 11, 2008 at 5:13 pm)
Could you get a system recording of the DAEC siren system one day?
kylex102 (July 7, 2008 at 10:12 pm)
that ambience sounds so nice
foxcloak866 (June 7, 2008 at 5:38 am)
i think that whelens can`t rotate fully is because of the awg copper wires that are in them
foxcloak866 (June 7, 2008 at 5:35 am)
i thought there was probably a blower motor that used to be on that platform
bmeiser (June 3, 2008 at 3:37 am)
haha "reg-a-lar" reg-u-lar
bigloudnoise (May 25, 2008 at 12:13 am)
Actually, all of the DAEC sirens, including the newest ones, have those "platforms" on the poles below the control boxes. I've never known for sure what they are, but if I had to make a guess, I'd say they're just there as a convenient place to lay the control box panel door after removing it for maintenance, or provide a place for workers to stand or kneel. Otherwise they are a mystery to me, because they're not solid, it's just a rectangular frame with absolutely nothing in the middle.
foxcloak866 (May 18, 2008 at 4:15 pm)
you can probably tell by the platform what used to be there
bigloudnoise (May 14, 2008 at 1:40 am)
The way I understand it, it's because of the way the speakers are wired up. Instead of using electrical contacts that allows the siren head to continuously rotate in one direction, the speaker head is connected with physical wires that run to the control box mounted on the pole below. Thus, to prevent the wires from becoming tangled (and potentially damaged), the siren will oscillate 360 in one direction, then 360 in the other direction. This is the explanation I've heard, but I could be wrong. |
