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Whelen Rules
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Thu Aug 03, 2006 10:51 pm

That test would be the noon test where it goes to half power as you can tell and then winds down. Its similar to the silent test but it makes an audiable sound. When the vortex r series im guessing that is an R 3 or 4 in full blast alert they run at about 465 hz.
Tyler Lund
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