Purchase 3 - new GNSS GPS receivers to collect and process survey data. Vendor shall be an authorized dealer of survey equipment, with capability to consult, maintain, and provide support/back-up as necessary on a daily basis. Vendor shall offer a discount for trade-in of 3 - Trimble R8 Model 2 Receivers. Hardware is required to meet the following minimum requirements and processing capabilities (non-inclusive): A: GNSS Receivers and controllers with data collection software and all accessories for full functionality - Single on the pole mounted unit consisting of 10 HZ RTK Base or Rover receiver and minimum 410-430 MHz UHF receive/transmit radio. Minimum of 500 channels capable of receiving GPS L1/L2/L2C/L5; GLONASS L1/L2/L3; Galileo E1/E5A/E5B/AltBOC; BeiDou B1/B2; WAAS/EGNOS; QZSS; and capable of advanced multipath reduction. Equipment must be capable of working seamlessly with real time networks currently available to the Rock Island District. Equipment shall have a minimum 3 year unlimited warranty with lifetime firmware and software updates. Support for dual data output and configuration to receive RTK corrections as well as distribute those to external devices to be configured and supported by other hybrid survey systems currently used, such as hydro-graphic echo sounder systems. Receivers are required to work seamlessly with current hardware and have the ability to work with 3rd party data collectors and data collection software.

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