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d <br />Specification changes required with either 10/2 or 15/5 Channel System: <br />297,112 <br />f�D <br />1- Cost differential for baseline IOR Channel system <br />Differential in price quotes per Corlett for baseline system versus estimate used by consultant. <br />including engineering and installation charges. <br />�! <br />2 - Digital Interface Equipment <br />Only mobile -to -mobile and portable -to -portable digital capability was included in the oris inal <br />191,765 <br />� <br />system deign. The digital interface was not included in the console switch to provide for <br />digital capability throughout the system in terns of other console, talc groups, logging recorders <br />F••► <br />encryption, towers and digital user equipment. <br />3 - Three additional consoles (Municipalities) <br />Two additional console were added for the Vero Bach 911 PSAP and one for the <br />51,749 <br />Sebastian dispatch loration <br />4- Telephone Patch <br />The original system did not include the capability of the radio system to interconnect with <br />67,339 <br />existing telephone systems. This equipment receives radio signals and converts the signal into <br />a mode to interface with telephone line. The recommended system merge the needs of the <br />public safety agencies with other•general service agencies who use the telephone interconnect <br />D for daily services. <br />0) <br />N <br />5 - Uninterrupted Power Supply <br />The original system design provided a minimal UPS system for on-site computer memory <br />retention only. The recommended system ensures a continuous and transparent operation <br />55,450 <br />to the user when electrical outage occur, such as lightning strike and "brown -outs". It <br />allows the emergency generator to start and safely transfer the load from commercial <br />power to emergency power and then hick to commercial power when available. <br />6 - Mutual Aid -State required upgrade <br />Since the original deign, the State has changed the deign for mutual aid channels. <br />This required the Wet multi -site to mirror the simulcast system East towers. This added <br />communications equipment not originally included (533,448). However, this was offset to some <br />degree by lower price quote for the baseline stations. <br />7 - Additional Wet Tower and AT&T construction agreement for north & south sines <br />The original design only included two towers east of 1-95 with an existing tower being <br />utilized for coverage in the western part of the County. The propagation study concluded <br />a third tower would be needed in the West county as existing towers were in the wrong <br />locations to achieve the level of coverage necessary for the Tump&c and Fellsmere area. <br />Proposed cost of new tower is $324,840. Additionally, an agreement has been reached <br />reached with AT&T Wireless Service to construct the north and south towers with a <br />County cost of 560,000. This agreement eliminate an otherwise additional cost for the <br />construction of theme towers . <br />8 - Tower connection System <br />The cost of a micp)wave system to connect the towers came in a slightly les than <br />(30,986) <br />178,034 369,799 <br />51,749 <br />67,339 <br />55,450 <br />14,173 14,173 <br />(115,160) (115,160) <br />(30,986) <br />originally anticipated <br />Subtotals Change to either system 663 415 (30,986) (115,160) 14,173 178 034 412,364 <br />Ca <br />0 <br />0 <br />7K <br />0 <br />