US Department of Commerce/National Oceanic and Atmospheric Administration (NOAA), PGAS, Procurement Operations Division, 1325 East West Highway, Station 4301, Silver Spring, MD 20910-3283

66 -- ACOUSTIC DOPPLER CURRENT PROFILERS (ADCP) SOL 52-DGNC-5-00170 POC Eleanor E. Kaul, Contract Specialist; Gregory N. Smith, Contracting Officer 301/713-0823 or fax 301/713-0806 NOAA intends to award a contract on a sole source basis to RD Instruments, 9855 Businesspark Ave., San Diego, CA 98131 for the purchase of the followiwng items: Workhorse ''Monitor'', 300 kHz real-time Broadband acoustic Doppler current profilers (ADCP), qty 2, part no. WM-300; 10 MB Memory Module for the Monitors; qty 2, part no. WH-MEM-10; Pressure Sensor option for the Monitor, qty 2, part no. WH-PRESS. These ADCPs shall be used as part of a Physical Oceanographic Real-Time System (PORTS) to be installed in Galveston Bay, Texas. The following are the performance specifications unique to the RD Instruments Workhorse Monitor which are required to meet the National Ocean Service (NOS) program requirements. The instrument shall have an uncertainity for a 6 minute velocity measurement with one (1) meter depth cells of +/- 3 cm/s or less. The ping interval shall be one (1) second or less. The instruments must operate from DC power, 30 volts or less, with a power requirement of less than five (5) watts when operating and less than one (1) watt in a standby mode. The instruments must also have an integrated compass, tilt sensor, pressure sensor and a temperature sensor. The output data stream shall provide an ensemble average, based on a user selectable number of pings, in a binary data format which is stored in internal memory and tranmitted at selected intervals. Communications with the instrument shall be user selectable serial RS232, RS422, and RS485 format. The instrument's electronics must be housed in a molded composite plastic pressure housing. The external height of the housing shall not exceed 36 cm because the instrument shall be deployed in a low profile, trawler resistant bottom platform. The maximum weight of the instrument shall not exceed 15 kg to facilitate diver retrieval. The instruments measurement technique employed by the ADCP must be one that has proven performance and reliability. Interested parties may identify their interest and capability to meet these requirements by submitting information addressing the specifications outlined above. See Note 22. (0108)

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