NASA/GSFC/WFF has a requirement for the upgrade of the Vaisala/SIGMET radarhardware and software used in the TOGA radar.NASA/GSFC/WFF intends to purchase these services from Vaisala, Inc. in accordance with6.302-1(a)(1)10 U.S.C. 2304(c)(1) - only one responsible source and no other supplies orservices will satisfy agency requirements. Vaisala,/SIGMET Inc. is the manufacturer ofthe existing Doppler Signal processor and the existing radar antenna controller. TheVaisala/SIGMET hardware and software are proprietary and integrated fully into the TOGAradar system. No other source has the specification and circuit diagrams needed to buildan upgrade for the current Doppler Processor and radar antenna controller since all theneeded information is proprietary to SIGMET, Inc. All hardware and software must befully compatible with the Vaisala/SIGMET systems used on the NPOL radar and planned forthe SPANDAR radar at Wallops and at Kwajalen, RMI.The Government intends to acquire a commercial item using FAR Part 12.Interested organizations may submit their capabilities and qualifications to perform theeffort in writing to the identified point of contact not later than 4:30 p.m. local timeon September 3, 2009. Such capabilities/qualifications will be evaluated solely for thepurpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and opencompetition basis, based upon responses to this notice, is solely within the discretionof the government.Oral communications are not acceptable in response to this notice.An Ombudsman has been appointed. See NASA Specific Note "B".

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