Tessco Wireless Journal October November 2014 Page 3 Wireless Journal October-November 2014

Most two-way public safety and commercial radio systems do not communi- cate with each other primarily because two-way systems have evolved with various technologies - analog, digital, IP, cellular, satellite or a combination. New system designs have improved the ability of local and regional systems to operate effectively within their designated areas. However, significant incompatibilities still exist between systems either because of separate frequency allocations or incompatible data protocols. This lack of interoperability remains a big challenge in situations where cross-communications are critical. In large-scale emergencies, it is crucial for all dispatched public safety entities to talk to each other regardless of the two-way system on which they operate. Interoperability means radio systems are integrated, enabling oversight and control of the situation while allowing all responders to act quickly and efficiently. Similarly, commercial fleet or dispatch services may need to communicate in a given area. Facilitating interoperability may be as simple as connecting two remote radio sites or something more complex that involves tying together many sites with multiple communications systems via a common integration platform. When planning for a scalable, interoperable communications solution, consider the following questions: What frequencies, protocols and data formats are being utilized? What is the desired coverage area, and are there constraints? What is the optimal or preferred backhaul infrastructure? What common functionality is needed across the entire system? Visit www.tessco.com/go/twoway to learn more. FEATURED MANUFACTURERS TWO WAY & CRITICAL COMMUNICATIONS Is Your Communications System Interoperable? TESSCO offers a comprehensive selection of interoperability hardware required to address the communications systems needed to talk to each other. For more than 30 years, TESSCO has been a leading provider of two-way radio solutions that enable public safety professionals and businesses to stay in communication consistently. As a leader in broadband and networking solutions, TESSCO is positioned to offer complete kits for even the most demanding interoperability applications. The entire product offering and your pricing is on TESSCO.com or call TESSCO at 800.472.7373. 3 October / November 2014 FEATURED SOLUTION

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