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➢ "A trunked radio system is a complex type of computer- controlled radio system. <br /> Trunked systems use a few channels (the actual frequencies), and can have virtually <br /> unlimited talk - groups. The control channel computer sends packets of data to enable <br /> one talk -group to talk together, regardless of frequency. The primary purpose of this <br /> type of system is efficiency; many people can carry many conversations over only a few <br /> distinct frequencies. [1] Trunking is used by many government entities to provide two - <br /> way communication for fire departments, police and other municipal services, who all <br /> share spectrum allocated to a city, county, or other entity." <br /> Cost analysis <br /> We have taken the list of all radio equipment assigned to EPW, broken them out to the separate <br /> capabilities and then researched the associated costs to replace them or to upgrade them. We <br /> have listed the costs two ways: <br /> > We averaged the cost from the current vendors producing radios that meet the <br /> requirements. <br /> > We have also listed the current costs should we purchase Motorola's products. <br /> As the industry moves towards digital capable radios and more manufactures start producing the <br /> compliant radios we expect that costs could reduce. Please reference the "NB proj EPW2010" file <br /> attached for a detailed outline of the costing. <br /> Option 1 would include replacing all non - narrow band compliant radios and infrastructure, with <br /> analog technology that meets the 2013 requirement. The cost for this upgrade would be <br /> approximately $401,615 (averaged). <br /> Option 2 would include replacing all non - narrow band compliant radios and infrastructure, with <br /> Digital non - trunking technology meeting 2018 requirement. The cost for this upgrade would be <br /> approximately $776,457 (averaged). <br /> Option 3 would include replacing all non - narrow band compliant radios and infrastructure, with <br /> Digital trunking technology meeting 2018 requirement and allowing us to become part of the <br /> public safety trunking system. The cost for this upgrade would be approximately $1,125,370 <br /> Averaged). <br /> > If we chose to use Motorola's XTS 2500 series radios the total cost would be <br /> approximately $1,087,604 <br /> ➢ If we chose to use the Motorola's XTS 5000 Series radios like the police department the <br /> total cost would be approximately $1,465.937. The primary difference between the two <br /> Motorola radios is over the air programming and encryption capabilities. If PW does not <br /> need encryption then the XTS 2500 radios would be more than sufficient to meet our <br /> needs. <br /> The cost for infrastructure changes because as part of joining the system, EPW would have to add <br /> more infrastructure to the system to allow for more subscriber units than is planned for. <br /> At this time the FCC is only requiring narrow band compliance. The FCC is not requiring public <br /> agencies to switch to digital operation prior to 2018. <br /> Page 2 of 3 <br />