Category:Rotating Sirens: Difference between revisions

Revision as of 02:10, 13 December 2013

Sirens that have a narrow, unidirectional sound beam but rotate to cover more area.

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Revision as of 02:03, 13 December 2013 (view source) MiltonWATech99 (talk \| contribs) No edit summary ← Older edit		Revision as of 02:10, 13 December 2013 (view source) Ziginox (talk \| contribs) (Sirens aren't magically locked to those three speeds, removed that and cleaned up redundancy) Newer edit →
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	Sirens that have a narrow sound beam but rotate to cover more area~~. Rotating Sirens, known as Unidirectional Sirens, have three main rotator speeds, measured in Rotations per Minute, the speeds are 2 RPM, 4 RPM, and 8 RPM~~.		Sirens that have a narrow, unidirectional sound beam but rotate to cover more area.