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Question about siren Frequencies
Posted: Sat Sep 08, 2007 10:28 pm
by Federal Signal 2001
I was wondering if anyone knew the frequencies of some various sirens?
Like the Thunderbolts, 2T-3T22's, Hurricane 130, model 5's 7's etc. and most of all the Cyclone/P-50/T-135 and any other sirens.
I think the Thunderbolt 1000T and 1003 is 550 and 660 Hz, but I'm not sure. and I know the Federal Signal 2001 DC is 750 Hz, but that's it.
Posted: Sun Sep 09, 2007 3:00 am
by EL1998P71
Are you talking about the freq range of the sound emmited, or the freq range of the radio triggering system?
Posted: Sun Sep 09, 2007 4:25 am
by Spotter/Chaser
EL1998P71 wrote:Are you talking about the freq range of the sound emmited, or the freq range of the radio triggering system?
I presume it must be the frequency range of the sound emitted. The frequency range of the radio triggering system would depend on the freq. range of the emergency services radios in the locale.
Posted: Sun Sep 09, 2007 5:43 am
by Justin
Posted: Sun Sep 09, 2007 3:14 pm
by Federal Signal 2001
Thanks that helped!
Ports, Pitches, Frequencies
Posted: Mon Sep 10, 2007 5:21 am
by Robert Gift
Posted: Fri Sep 14, 2007 8:47 pm
by Federal Signal 2001
The Hurricane MKII 130 is a triple tone siren?
460, 575, and 690 Hz? according the the last posted chart
Posted: Fri Sep 14, 2007 9:02 pm
by Gil
No, its a Dual-Toned siren. Tripple tone would require 3 rotor/stator arse'ys
Posted: Fri Sep 14, 2007 11:15 pm
by Robert Gift
Federal Signal 2001 wrote:The Hurricane MKII 130 is a triple tone siren?
460, 575, and 690 Hz? according the the last posted chart
The Hurricane MKII comes in major third 8-10 port (460-575 Hz) and minor third 10-12 port (575-690 Hz) configurations.
The only triple-tone listed is the 12/10/10/15 Tangent-Gents, UK 50Hz siren.
Posted: Sat Sep 15, 2007 1:05 pm
by Gil
Hurricane was also available in Single Tone.