2024-751-E-Emergency Svc-Motorola Solutions-VHF Paging System Upgrades

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Orange County, North Carolina VHF Paging System Upgrades July 19, 2024 Use or disclosure of this proposal is subject to the restrictions on the cover page. Motorola Solutions Confidential Restricted System Description 2-2 tower sites. Costs relating to tower upgrades or modifications are not included in this proposal and shall be the responsibility of Orange County. The following new equipment is proposed for the VHF paging system. A simulcast Prime Site will be provided. This simulcast Prime site will consist of a TRAK9100 Frequency Standard and Motorola GRV8000 comparator. The GRV8000 is a versatile, compact product platform that allows for operation of analog voting / simulcasts systems over IP networks. The new analog solution is comprised of one GRV8000 operating as the Analog Comparator for each channel. − GRV 8000 PRODUCT HIGHLIGHTS:  Interfaces directly with existing analog TRC consoles  Supports Analog Simulcast over IP subsite links  Supports Analog Voting over IP sub site links • The NC VIPER System Microwave Radio system is desired to serve as the transport providing connectivity between the Prime site and RF sub sites. • The RF site equipment will consist of Motorola GTR8000 radio equipment. The GTR8000 is designed so that many upgrades, migrations and conversions can be completed with only software installations. This allows for new features to be added as well as providing an easy migration from conventional operation to P25 FDMA or TDMA trunking operation. • The TRAK 9100 Simulcast Site Reference (SSR) are used in this simulcast subsystem configuration. The SSR supplies a highly accurate time and frequency reference signal to the comparator and the simulcast base stations. The comparator uses the time reference to compute transmission launch times. The simulcast base station uses the time reference to execute the transmission launch times and uses the frequency reference to generate the data transmission clock as well as a highly stable carrier frequency. The Prime site TRAK 9100 frequency reference device used includes redundant GPS receivers and antennas, redundant DC power supplies, and a back-up oscillator. The role of a failed module will be assumed by the back-up module. In the event of a loss of GPS sync (due to weather, snow, etc), the back-up oscillator will continue to maintain simulcast parameters for at least 14 days before any noticeable audio degradation starts to occur. Full alarming is provided to monitor the TRAK frequency reference so there will be ample time to initiate repairs. • New COL54160P RFI antennas will be installed at each RF site. The RFI antenna is a high performance low PIM Omni-directional antenna that offers high gain, excellent bandwidth and high reliability. New 7/8” LDF transmission line will be supplied as part of the new antenna system for each site. The existing RF Mixing device will remain I service at each site. VHF SYSTEM TOPOLOGY 2.2.1 Simulcast Prime Site A new simulcast Prime Site will be supplied and installed. The location for the paging system Prime site is the Orange County Primary Dispatch Site. This site will consist of a GRV8000 comparator, site router, and site switch network equipment. One GRV8000 comparator will be installed to support the consolidated EMS and Fire VHF RF channel in the simulcast system. The comparator typically acts as a four wire audio interface to the existing consoles. The comparator direct console input function will be utilized. The comparator can also act as a voter for the simulcast system selecting the best receiver signal for broadcast to the field. Docusign Envelope ID: A05892FB-E22F-4F9D-8892-114F73CBF1B7Docusign Envelope ID: 8FA7D053-A257-4BCD-BB7E-4DF984B26C6A