By Alan M. Petrillo
Technological advances have pushed wireless communications faster and farther than many have anticipated, and use has been more deeply integrated into the fire service.
Wireless headsets, wireless hotspots on apparatus, and wirelessly controlled equipment are some of the ways wireless has made a big footprint with fire departments.
Wireless Headsets
Bob Daigle, product manager for airline, fire and marine systems, and wireless for David Clark Co., says that most fire service customers like the idea of wireless communications for drivers, officers, and aerial operators. “We launched our wireless products about five years ago and see a trend upward in fire departments moving toward more wireless communication,” he says.
David Clark Co. offers a wireless gateway with two antennae that can be installed anywhere on a vehicle, along with two belt stations-the U9910-BSW, which transmits and receives all system audio to and from the gateway and the user’s headset, and the U9913 belt station, an intercom-only model. Up to four belt stations can be connected to one gateway.
“We use the Digital Enhanced Cordless Technology (DECT) protocol for wireless because we have found it to be the most reliable for this type of application,” Daigle points out, “especially over Bluetooth, because it is less susceptible to drop out.” David Clark Co. makes a number of wireless headsets to mate with the gateway, including a behind-the-head style that simplifies use when the user is wearing a fire helmet.
|
1 A pump operator wears a David Clark Co. wireless behind-the-head style headset that simplifies use when wearing a helmet. (Photo courtesy of David Clark Co.) |
With David Clark Co.’s new digital systems, Daigle says, “you can program individual interface requests, assign frequencies to certain users, and integrate cell phones and tablets. The power button on the digital unit toggles through four selections that include intercom, auxiliary sound sources, and assigning different radios. It’s very versatile, so the fire department can craft the system to its particular needs.”
Jim Roberts, president of Setcom Corp., says his company’s move into wireless technology five years ago “was well received, and since then we have made four iterations on the product to continue to increase the quality of the sound the user hears and transmits.” He notes that version four of the Liberator Wireless Headset “has added features that make sense and don’t contribute to user confusion.”
The Liberator Wireless Headset has a motion sensor in the headset that turns the unit off when it is not in motion. When the user picks up the headset again or begins to move, the unit automatically turns on. “It also has a cell phone feature,” Roberts notes, “and can communicate over a mobile radio, a truck intercom system, or a handheld portable radio. It uses a Bluetooth module for its primary communications link.”