Talk:Federal Signal Modem-MSK

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This is not just for sirens. It is a simple polling signal used for many MANY more purposes than just sirens. This signal can also exist in UHFUltra High Frequency (300-3000 MHz) around 452-454 Mhz either at night or the daytime. (In my area, a 453.725 Mhz example with these same characteristics is used for other purposes, probably to test alarms or such). So this polling MSKMinimum-Shift Keying (When Shift/Bd = 0.5. It is impossible to get this ratio to be lower than 0.5, hence it is called the 'Minimum' shift.) is not actually just for sirens, per se....Also, Howdy Indyfrog. ;D -> Yalek W (talk)