Caroline County, Virginia Request for Proposals Project 25 Radio ...

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UHF/700 MHz P25 Radio Communications SystemRequestion for ProposalsCaroline County, Virginia3.5.2.1 RepeatersA. General:1. Base station equipment shall be solid state in design and function withstandard site conditions for temperature, altitude, and humidity.2. Equipment shall have alarm interfaces to provide status to the NetworkManagement System3. The units shall be as compact as possible, with mounting configurations forstandard relay rack or cabinets.4. The units shall consist of modular components or Field Replaceable Unitsallowing for in the field repairs whenever possible.B. Base station equipment shall comply with Part 90 of the FCC Rules andRegulations, as well as appropriate EIA and similar agency standards and beFCC type accepted for the appropriate frequency band.C. Prior to implementation, the SELECTED VENDOR shall perform the followingstudies at each site:1. Intermodulation analysis – The SELECTED VENDOR shall considerequipment from all tenants located at the proposed site, per FCC licensedinformation.2. Maximum Permissible Exposure (MPE) study (per latest revision of OETbulletin 65) – The SELECTED VENDOR shall consider equipment from alltenants located at the proposed site, per FCC licensed information.D. The SELECTED VENDOR shall resolve all issues predicted during theintermodulation analysis and MPE studies. If an intermodulation problem isidentified following implementation, the SELECTED VENDOR shall resolve theissue without degrading system coverage or performance, for a period of up to12 months after final acceptance at no cost to the OWNER.E. RESPONDENT shall include detailed specification sheets for all proposedequipment.F. A single duplexer shall be utilized for the Paging and Interoperability Channel ateach site.May 27, 2011 Page 33 of 134
UHF/700 MHz P25 Radio Communications SystemRequestion for ProposalsCaroline County, Virginia3.6 Coverage MapsA. RESPONDENT shall include a detailed description of the propagation modelsused and the assumptions made in preparation of the coverage maps. A briefdescription of the methodology the software used to calculate coverage shall alsobe included in the proposal narrative.B. RESPONDENT shall submit both talk-out and talk-in system composite coveragemaps for all proposed design configurations (700 MHz P25 Phase 2 system,UHF P25 system, VHF Paging and Interoperability system). The maps shall beclearly labeled and shall show system gain calculations for each of the following:1. Mobile radios – Standard dash or trunk mount with antenna mounted in thecenter of the roof2. Portable radios – Standard portable radio outdoors:a. Talk-out to a portable radio on hip with swivel belt clipb. Talk-in from a portable radio at head level3. Portable radios – Standard portable radio with 12 dB medium buildingpenetration margin:a. Talk-out to a portable radio on hip with swivel belt clipb. Talk-in from a portable radio at head levelC. Coverage shall be depicted using a light transparent color or cross-hatching forthose areas that meet or exceed the minimum coverage reliability threshold.D. All maps must clearly delineate the difference between areas predicted to begreater than DAQ 3.4 equivalent coverage and areas that do not meet coveragerequirements. RESPONDENT shall include the affects of simulcast interferencein all coverage maps.E. Coverage maps shall be provided in the proposal in two formats:1. 11”x17” (minimum) full color hardcopy format2. PDF file format on CD-ROMF. All maps shall include a background layer suitable for County reference (e.g.,topography, roads, rivers, etc.).May 27, 2011 Page 34 of 134
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Caroline County, Virginia Request for Proposals Project 25 Radio ...

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