SOURCES SOUGHT
59 -- Replacement Optical Encoder
- Notice Date
- 9/14/2006
- Notice Type
- Sources Sought
- NAICS
- 334220
— Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
- Contracting Office
- Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), Mountain Region Acquisition Division, 325 Broadway - MC3, Boulder, CO, 80305-3328
- ZIP Code
- 80305-3328
- Solicitation Number
- RFI-001DT
- Response Due
- 10/15/2006
- Archive Date
- 10/15/2006
- Description
- The National Weather Service (NWS) is conducting market research for the replacement of the Optical Encoder in its NEXRAD Weather Surveillance Radar WSR-88D. The Optical Encoder provides elevation and azimuth position information for the WSR-88D antenna/pedestal assembly and is contained within the pedestal. The existing Optical Encoder is approaching obsolescence of its critical components. The existing Optical Encoder is model A1625H-14NB manufactured by Sequential Electronics Systems, Inc. The purpose of this RFI is to gather information from Encoder manufacturers relating to the availability of compatible Optical Encoders in the commercial market. The following are the pertinent characteristics of the existing Optical Encoder. The Optical Encoder provides an output consisting of a 14 Bit (0.02 degree) resolution, 13 Bit (0.04 degree) accuracy providing absolute angle data in a serial natural binary format with the Least Significant Bit (LSB) first out. A bite bit of Logic "1" in the Most Significant Bit (MSB) + 1 indicating normal operation and a Logic "0" to indicate an encoder failure. A binary "1" is indicated by a minimum of 2.5 VDC at -20 mA. A binary "0" is indicated by a maximum of 0.5 VDC at 20 mA. The inputs (read,clock) must have differential input impedance of 180 ohms minimum, a pulse width minimum of 0.5 micro-sec, an interrogation rate minimum of 5 kHz, a shift frequency minimum of 2.0 MHz. The rotation, for increasing count, should be clockwise facing the mounting surface or shaft end. Power should be +5 Vdc +0.25/-0.50 Vdc at 1500 mA maximum. The mechanical data should include solid shaft, self-contained electronics, and a starting/running torque of 1.5 oz-in maximum (@ 25 degrees C). Once the encoder receives the read pulse, the time to the first data bit output (LSB) should not exceed 104 micro-seconds. GENERAL: The NWS will not fund the development of a new design to support this requirement. Responses to this market survey should only include products that support all stated requirements in a current commercially available configuration, or could be made fully compliant through minor modifications. Responses to this market survey must include the device manufacturer, a product description with performance parameters, a statement regarding current availability, a statement describing any required modifications, and the estimated cost of the product including any required modifications. These cost estimates must include any non-recurring costs along with the cost for manufacture of 400 production units. This RFI does not constitute an Invitation for Bids, Request for Proposals or Request for Quotes. The NWS will use the results of this RFI to estimate expected cost and identify possible sources to support this future requirement. All information should be submitted to the following: Doris Turner, U.S. Dept. of Commerce/NOAA/ Mountain Region Acquisition Division, Fax: 303-497-3163 or e-mail: doris.p.turner@noaa.gov. Responses should be received no later than 30 days from the date of this announcement.
- Place of Performance
- Address: 325 Broadway, Boulder, CO
- Zip Code: 80305-3328
- Country: UNITED STATES
- Zip Code: 80305-3328
- Record
- SN01143319-W 20060916/060914220332 (fbodaily.com)
- Source
-
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