Abstract: A portable wireless tracking device that uses radio-frequency identification (RFID) technology to monitor the location and physical condition of emergency personnel at the scene of an emergency incident. RFID technology uses radio-transmitting interrogators to send out radio waves to preprogrammed receiver computer chips which respond to the radio query with another radio signal. If the frequency is not correct, the receiver or interrogator will not recognize it. The invention also uses wireless remote stations that are placed in high rise buildings or other large commercial or infrastructure locations to provide facility managers and emergency responders with a reliable wireless emergency management and communications system. The remote stations can include broadband video, audio, two-way radio, as well as chemical and air flow data from life safety devices that can be used to monitor, direct, communicate and share with public safety agencies.

Abstract: A portable radio bridge which allows most two-way radios to be interconnected regardless of the radio's frequency, modulation or encryption scheme to provide radio interoperability at the scene of a multi-jurisdictional emergency. The device channels the audio output from the external speaker jack on one radio to the microphone input jack on another radio. The process used is time division multiplexing. The device is microprocessor controlled and monitors input channels, determines if someone is speaking, and sends the audio to output channels in specified “talk groups”.