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Orange County Emergency Management, North Carolina <br />Final VIPER Analysis Report August 20, 2004 <br />Interoperability Gateway <br />The privately owned design provided for an interoperability switch to be installed <br />in the Orange County gateway in Bus/Command Post. NC-SHP is installing <br />interoperability switches and conventional radio equipment at VIPER sites to <br />support interoperability with users from non-800 MHz jurisdictions. <br />7.3 Cost Comparison Privately Owned vs. VIPER <br />7.3.1 Short-Term Cost Comparison <br />Orange County and its communities as a whole would face a higher short- <br />term expenditure if purchasing a privately owned 800 MHz trunked radio <br />system compared with joining VIPER. There is less opportunity to share <br />resources to save cost to build out the privately owned infrastructure. The <br />entire system including PSAPs must be constructed and operational prior <br />to migrating user entities to the privately owned system. In contrast, <br />entities have the option to purchase subscriber equipment and use the <br />VIPER network on a secondary basis until Orange County's PSAPs are <br />operational on VIPER. The cost of the privately owned system is shown <br />beginning in 2005 to account for the lead time associated with competitive <br />bidding specifications development and bid evaluation. The short-term <br />schedule and cost of VIPER versus the privately owned trunked system <br />are as follows: <br />Year Viper Probable Cost Private Probable Cost <br />2004 $1,200,000 <br />(Includes two VIPER Sites in Orange currently funded by grants & <br />assuming no tower is required at Orange County North site) <br />2005 $893,200 <br />(OCEM PSAP) <br />$799,300 <br />(iJNC-CH PSAP) <br />$11,245,000 <br />(Entire private system) <br />$7,825,200 <br />(Subscriber Radios) <br />Section 7 -Comparison of Private system ana vtrrtc <br />Page 33 of 43 <br />