NASA/Goddard Space Flight Center, Code 215, Greenbelt, MD 20771

66 -- GLOBAL POSITIONING SYSTEM SIGNAL GENERATOR SOL RFO5-07202 DUE 100799 POC Elizabeth Austin, Contracting Officer, Phone (301)286-6843, Fax (301)286-1720, Email Elizabeth.J.Austin.1@gsfc.nasa.gov -- Doris Wood, Contract Specialist, Phone (301)286-3989, Fax (301)286-1720, Email Doris.S.Wood.1@gsfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/GSFC/date.html#RFO5-07202. E-MAIL: Elizabeth Austin, Elizabeth.J.Austin.1@gsfc.nasa.gov. NASA/GSFC plans to issue a Request for Offer (RFO5-07202) for a Global Positioning System (GPS)Signal Generator to Global Simulation Systems Inc. (GSSI). The signal generator will be used to perform a number of GPS navigational roles: navigation state, relative state, differential state, and attitude determination. The signal generator must provide a minimum of 16 L1 channels on each of the 4 RF outputs. This GPS system will be used in the Goddard GPS Test Facility within the Components and Hardware Systems Branch. Because this signal generator will be used in an integrated Guidance, Navigation, and Control hardware simulation, the need for external inputs to drive the signal generator environment model will be a required capability. The signal produced by the signal generator will be required to have user defined multipath error model parameters. In addition to the multipath errors, Selective Availability, Ionospheric range biases, Tropospheric range biases errors also need to be produced as part of the signal genertor output. NASA/GSFC intends to acquire this item from Global Simulation Systems Inc., as authorized at 10 U.S.C. 2304(c)(1), Only One Responsible Source. The Government intends to acquire a commercial item using FAR Part 12. An Ombudsman has been appointed. See Internet Note "B". Interested firms have 15 days from the publication of this synopsis to submit in writing to the identified point of contact, their qualifications/capabilities. Such qualifications/capabilities will be used solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government to not compete this proposed effort on a full and open competitive basis, based upon responses to this notice is solely within the discretion of the Government. Firm date for receipt of offers will be stated in the [RFO OR RFQ OR RFP]. All qualified responsible sources may submit an offer which shall be considered by the agency. Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html Posted 09/23/99 (D-SN383760). (0266)

Loren Data Corp. http://www.ld.com (SYN# 0287 19990927\66-0007.SOL)