Main story:
Why does the Chicago Fire Department outfit their trucks and stations with green lights?

Between myths, legends, and even superstition there is real history behind the green lights that the Chicago Fire Department (CFD) mount on their trucks, apparatus, and even stations. Is it to make all of the other cities green with envy over the special color, is it to respect a fallen fire fighter, or is it to protect them through each call? To put it simply, yes. Chicago is a city based on tradition… Read the rest of our main story »

Ask Bob:
Question: I recently discovered that Federal Signal released a new auxiliary siren called the Rumbler™. Can you explain how the Rumbler works?

The Rumbler is actually a secondary warning system that is ideal for intersection clearing. This system is comprised of an amplifier box, two woofer speakers, a timer and mounting hardware. The Rumbler works in conjunction with a primary siren system such as PA300. The Rumbler divides the low frequencies from the primary siren's signal, and then amplifies these low frequencies. The amplified signal is sent to the woofers which are designed to produce a low, vibrating tone… Read the rest of the answer »

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Main story:Why does the Chicago Fire Department outfit their trucks and stations with green lights?

Ask Bob:Question: I recently discovered that Federal Signal released a new auxiliary siren called the Rumbler™. Can you explain how the Rumbler works?

Hot Stuff

Main story:
Why does the Chicago Fire Department outfit their trucks and stations with green lights?

Ask Bob:
Question: I recently discovered that Federal Signal released a new auxiliary siren called the Rumbler™. Can you explain how the Rumbler works?