NASA/Langley Research Center, Mail Stop 144, Industry Assistance Office, Hampton, VA 23681-0001

66 -- MICROPHONES/AMPLIFIER FOR NOISE LEVEL TESTING OF TUNNELS SOL 1-057-RBF.1063 DUE 050900 POC B. Terry Cobb, Contract Specialist, Phone (757) 864-2129, Fax (757) 864-9775, Email t.g.cobb@larc.nasa.gov -- Roberta I Hollifield, Contract Specialist, Phone (757) 864-2521, Fax (757) 864-6131, Email r.i.hollifield@larc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=23#1-057-RBF.1063. E-MAIL: B. Terry Cobb, t.g.cobb@larc.nasa.gov. This notice is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a written solicitation will not be issued. This procurement is being conducted under the Simplified Acquisition Procedures (SAP). MICROPHONES/AMPLIFIERS FOR ACOUSTICAL TUNNEL TESTING 1.) 8 EA Model 4939 free-field 0.25-inch microphones. 2.) 100 EA Model 4938 pressure-field 0.25-inch microphones. The following salient features apply to items 1 and 2: 7 Must be supplied with calibration data (each microphone) 7 Must have 0.25-inch diameter measurement surface 7 Must implement Charge Injection Calibration (refer to US Patent No.5,400,297; owned by Bruel&Kjaer) The following salient features apply only to item 1: 7 Must be compatible with existing data acquisition system in the Jet Noise Laboratory, which currently employs a number of Model 4939 microphones fabricated by Bruel & Kjaer 7 Must be compatible with Bruel & Kjaer Model 2619 preamplifier and cable 7 Must operate over a frequency range of 5 Hz to 100 kHz with a flat response of 11 dB at zero incidence angle 7 Must operate over a dynamic range of at least 28 to 164 dB The following salient features apply only to item 2: 7 Must be compatible with existing data acquisition system in the Flow Impedance Test Laboratory, which currently employs a number of microphones fabricated by Bruel & Kjaer 7 Must combine with a preamplifier to insert 1.5" through an 0.25"-diameter hole 7 Must be compatible with Bruel & Kjaer Model 2670 preamplifier and cable 7 Must operate over a frequency range of 20 Hz to 20 kHz with a flat response of 11 dB at zero incidence angle 7 Must operate over a dynamic range of at least 30 to 172 dB 3.) 73 EA Model 2670 0.25-inch microphone preamplifiers: 7 Must be compatible with Bruel & Kjaer 4938 and 4939 microphones 7 Must have a flat response of 10.5 dB over a frequency range from 20 Hz to 100 kHz 7 Must use LEMO connectors for connection with signal conditioner 7 Must have a cable length of at least 5 feet 7 Must have phase linearity of less than 11 degree over a frequency range of 20 Hz to 100 kHz 7 Must implement Charge Injection Calibration (refer to US Patent No.5,400,297; owned by Bruel&Kjaer) 7 Must supporting TEDS (transducer electronic data sheet) architecture 4.) 24 EA Model 2690A0S4 4-channel Nexus signal conditioners: 7 Must be compatible with items 1-3 above 7 Must be operable via front panel and RS-232 computer interface control 7 Must be capable of providing appropriate signal and response to microphone/preamplifier for Charge Injection Calibration 7 Must support for TEDS architecture 7 Must provide -20 to 60 dB gain, 20 Hz high pass filter option, and low pass filter options of 1, 3, 10, 30 and 100 kHz 7 Must contain overload detection which accounts for preamplifier cable length 7 Must use LEMO connectors for inputs and BNC connectors for outputs The provisions and clauses in the RFQ are those in effect through FAC 97-15. The SIC code and the small business size standard for this procurement are 3669 and 750 employees, respectively. The quoter shall state in their quotation their size status for this procurement. All qualified responsible business sources may submit a quotation which shall be considered by the agency. Delivery to NASA/LaRC is required within 30 days ARO. Delivery shall be FOB Destination. The DPAS rating for this procurement is DO-C9. Quotations for the items(s) described above are due by May 09, 2000 COB 4:00 p.m. and may be mailed or faxed to Ms. Terry Cobb, NASA/LaRC, M/S 126, 9 Langley Blvd., Bldg. 1195A, Rm. 214, Hampton, VA 23681; fax number 757-864-9775, and include, solicitation number, proposed delivery schedule, discount/payment terms, warranty duration (if applicable), taxpayer identification number (TIN), Cage Code, identification of any special commercial terms, andbe signed by an authorized company representative. The quote must be mailed FOB destination to this Center. Quoters are encouraged to use the Standard Form 1449, Solicitation/Contract/Order for Commercial Items form found at URL: http://procure.arc.nasa.gov/Acq/Forms/Index.html to submit a quotation. Quoters shall provide the information required by FAR 52.212-1. Addenda to FAR 52.212-1 are as follows: If the end product(s) quoted is other than domestic end product(s) as defined in the clause entitled "Buy American Act -- Supplies," the quoter shall so state and shall list the country of origin. The Representations and Certifications required by FAR 52.2l2-3 may be obtained via the internet at URL: http://ec.msfc.nasa.gov/msfc/pub/reps_certs/sats/ FAR 52.212-4 is applicable. Addenda to FAR 52.212-4 are as follows: 52.219-6, 52.223-3, 52.247-35, 1852.215-84, 1852.245-72. FAR 52.212-5 is applicable and the following identified clauses are incorporated by reference: 52.222-21, 52.222-26, 52.232-34, 52.225-3, 52.222-35, 52.222-36, 52.222-37. The FAR may be obtained via the Internet at URL: http://www.hq.nasa.gov/office/procurement/regs/nfstoc.htm Questions regarding this acquisition must be submitted in writing no later than May 4, 2000. No phone calls are allowed. Award will be based upon overall best value to the Government, with consideration given to the factors of proposed technical merits, price and past performance; other critical requirements (i.e., delivery) if so stated in the RFQ will also be considered. Unless otherwise stated in the solicitation, for selection purposes, technical, price and past performance are essentially equal in importance. It is critical that offerors provide adequate detail to allow evaluation of their offer (see FAR 52.212-1(b). Quoters must provide copies of the provision at 52.212-3, Offeror Representation and Certifications -- Commercial Items with their quote. See above for where to obtain copies of the form via the Internet. An ombudsman has been appointed -- See Internet Note "B". It is the quoter's responsibility to monitor the following Internet site for the release of amendments (if any): http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=C&pin=23 Potential quoters will be responsible for downloading their own copy of this combination synopsis/solicitation and amendments (if any). NOTE: The Prompt Pay Act requires payment be made 30 days from the date invoice is received in the Accounting Office. Advance pay is not authorized. For a complete evaluation, please provide along with the quote, literature that explains how the product meets NASA specifications. Posted 04/24/00 (D-SN447911). (0115)

Loren Data Corp. http://www.ld.com (SYN# 0239 20000426\66-0004.SOL)