Recently, there have also been radar systems developed that operate in the ISM bands, specifically the 2.4 GHz ISM band, due to the readily available and inexpensive wireless ICs available for these frequencies. Of the most common uses outside of communications, are induction heating for industrial and home applications, microwave heating for industrial and home applications, and RF and microwave heating for medical purposes, such as diathermy, hyperthermia therapy, and RF/microwave ablation. Though originally set aside for non-communication purposes, many short range, low power, license-free, or unlicensed error-tolerant communications systems operate within the ISM-band. Though the ITU determines the international band designations, individual countries exact ISM band frequencies may differ. Hence, using the ISM bands for telecommunications is possible, but telecommunications devices using these frequencies must be able to withstand the interference from other RF and microwave technologies, such as microwave ovens, RF heating, and other potentially electromagnetic interference (EMI) producing devices. These frequency bands were set aside for RF use for purposes other than telecommunications. Indianapolis/Marion County PSC (MECA) Fire Dispatch and OPS channels provided by PhotoTac.The Industrial, Scientific, and Medical (ISM) frequency bands are designated radio frequency bands as defined by the ITU Radio Regulations. This feed includes SAFE-T frequencies and talkgroups for Johnson County, IN along with Johnson County Fire and Indiana State Police. In the Johnson County, Indiana area this frequency is used to activate the Volunteer Fire Department pagers & some Tornado sirens. This feed broadcasts on the frequency 154.010. This maintenance should result in increased reliability, better audio quality, and perhaps some additional feeds. Will be some minor outtages next few days as some tweaks are finished. Status: Most upgrades have been completed. IMPD Southeast, Beech Grove, Southport & Homecroft PD Indianapolis Metropolitan Police - Southeast District Indianapolis Area CSX, INRD and LIRC Railroad TalkGroup broadcasted is 32PE-DSP located in Hendricks County, Indiana. Hoosier Safe-T public safety radio system. TalkGroup broadcasted is 32F-OP3 located in Hendricks County, Indiana. TalkGroup broadcasted is 32F-OP1 located in Hendricks County, Indiana. TalkGroup broadcasted is 32F-DSP located in Hendricks County, Indiana. TalkGroup broadcasted is 32F-CW1 located in Hendricks County, Indiana. Status: Feed down due to hardware problem with the hosting computer. Includes all Hancock County public safety agencies Hancock County Sheriff, Fire and EMS, Greenfield Police Dispatch Westfield, Carmel, Fishers, Noblesville, Sheridan, Cicero, Sheriff/Small Town Fire/EMS/Police Dispatch and Operations. This feed monitors frequencies of CSX Railroad's Avon, IN St.Louis Line Subdivision and their Big Four Yard. Amtrak Communications at the Big 4 Shops.
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