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Forum: Technical Aspects.

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Topic		Started By	Replies	Views	Rating	Last Post
	STICKY: The technical aspects. (Preview) Here is where all technical aspects of sirens go [this forum].	Peter Radanovic	0	1038		Dec 10 19:17 2005 by Peter Radanovic
	The inner workings of mechanical and electronic sirens. (Preview) If you are wondering how a mechanical or electronic siren type works, here is some information for you. I'm only explaining mechanical and electronic types because they're the only types of sirens that exist. Moving on to mechanical sirens: a mechanical siren is basically a siren that use...	Peter Radanovic	0	1979		Mar 19 16:56 2006 by Peter Radanovic
	A little research I did. (Preview) I have been thinking for a minute on how the 3T22/2T22 have roughly the same decibel rating as the STH-10. I came to the point where I thought it seems that rotor spacing of the 3T22/2T22 models has a lot to do with it. And it seems to work. My reasons behind this are that the sound output of both the roto...	Peter Radanovic	0	920		Mar 15 14:08 2006 by Peter Radanovic
	My new siren design(s). (Preview) the utterly simple	Peter Radanovic	2	1091		Mar 10 16:27 2006 by Peter Radanovic
	HLS sirens. (Preview) This shall surprize all of you. It's a siren as big as a small tower! HLS models are German-built. HLS stands for:HochLeistungsSirene. In English this means HighPowerSiren. High power siren indeed because it produces one-hundred-thirty-one decibels of sound pressure at one-hundred feet a...	Peter Radanovic	3	2977		Jan 25 14:58 2006 by Peter Radanovic
	Various siren signals. (Preview) Mechanical/electromechanical siren signals: Wail or attack signal- is a slowly rising and falling tone. It is mostly used as a signal to urge citizens to take cover immediately. This usually includes raids, attacks, bomb explosions, chemical disasters and other such ocasions involving imme...	Peter Radanovic	0	1013		Dec 31 10:58 2005 by Peter Radanovic
	Siren Q&A. (Preview) Here you post questions conserning anything you did not get on sirens or anything else you'd like to know, and let me try to answer your question(s). One question per post, you ask one question in one post. Have multiple questions? Make multiple posts. Also for those of you who are waitin...	Peter Radanovic	0	1054		Dec 30 18:27 2005 by Peter Radanovic
	General siren terminology. (Preview) Here are some of the main words conserning siren terminology and such. Omni directional siren- a type of siren which spreads its sound coverage simoltaneously around in a three-hundred-sixty degrees pattern on a horisontal axis at the same time. In other words, the siren can be heard in al...	Peter Radanovic	0	990		Dec 30 18:21 2005 by Peter Radanovic
	Why does Federal Signal make such high-pitched sirens? (Preview) Most people on the AirRaidSirens.com board and troughout the entire siren community are dissapointed that Federal Signal makes such high-pitched sirens, particularily with Federal's new 2001 series. Yes it is annoying to hear such a high-pitched siren, meaning that a lower-tone...	Peter Radanovic	0	1158		Dec 19 14:00 2005 by Peter Radanovic

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