Directorate of Contracting, Uniformed Services University of the Health Sciences, Rm A1040c, 4301 Jones Bridge Road, Bethesda, MD 20814-4799

D -- SATELLITE TERMINAL UPGRADE SOL MDA905-98-R-0014 DUE 060198 POC David Travis, Contract Specialist, 301-295-3868, James Geiser,Jr., 301-295-3845. Fax 301-295-1716 This is a combined synopsis/solicitation prepared in accordance with FAR Subpart 12.6. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. This synopsis/solicitation is being released as a Request for Proposals(RFP) following the FAR Simplified Acquisition Procedures. The Uniformed Services University of the Health Sciences (USUHS) has an immediate requirement for upgrading its C and Ku Band Satellite Earth Station(SES) and supporting equipment. The SES is to be used to support distance learning activities. The SES Upgrade shall 1) replace one existing C and Ku band antenna, associated positioner, waveguides, LNB, mount, and wiring to have a fully functional downlink satellite earth station using existing receivers; 2) to obtain an additional domestic Ku-band antenna; associated positioner, waveguides, LNB, mount, and wiring to have a fully functional downlink SES usiong existing receivers that can be upgraded in the future to uplink by only adding the transmitter electronics. The Statement of Work/specifications required are as follows: C.1 Antenna. The antenna shall have a minimum diameter of 5 meters, and be fully compliant with FCC Part 25 specifications and FCC rules section 25.209. The antenna shall not require any FCC waivers to comply with this specification. C.1.1 The antenna shall be capable of receiving both horizontal and vertical pols at the same time. C.1.2 The antenna shall include a linearly polarized receive and transmit assembly. C.1.3 An Antenna deicing system is not required. C.1.4 All waveguide runs shall include a dry air pressure dehydrator system. C.1.5 All waveguide runs shall include, where applicable, the necessary waveguide joints to allow the antenna to be repositioned over the full range of azimuth and elevation control allowed by the positioner without servicing the waveguide. C.1.6 The antenna shall have a minimum gain of 52 dBi over the 11.7 to 12.2 GHz frequency band, and a minimum gain of 54 dBiover the 14.0 to 14.5 GHz frequency band. C.2 Antenna Positioner. The antenna shall contain a "step track" antenna positioner that is remotely controllable from inside the USUHS computer room. C.2.1 The antenna mount and positioner shall be capable of using geosynchronus satellites that have been placed in inclined orbits, such as, 0-STAR III. C.2.2 The positioner shall be capable of covering the entire visible geostationary arc from horizon to horizon. C.2.3 The positioner shall accurately point the antenna to within 0.006 degrees. C.2.4 The antenna and positioner shall be capable of operating in wind speeds of up to 40 MPH. The antenna and positioner shall be capable of remote control of the polarization by rotation of the feed assembly. The positioner shall permit, via remote control, a continously variable polarization adjustment over a minimum of ninety-five (95) degrees rotation. The antenna positioner parameters shall be remotely controllable by means of an RS-232C serial interface or an IEEE-488 bus interface:Azimuth, Elevation, and Polarization. C.3 Domestic Ku-Band Satellite Earth Terminal. C.3.1 The earth terminal shall have three (3) video channels, one for uplink and two for downlink, to send and receive signals to transponders on the same Ku-band domestic satellite. C.3.2 Each video channel shall be a full motion broadcast quality analog signal. Each video channel shall also support a minimumof two companion hi-fidelity audio channels. C.3.3 the earth terminal shallbe capable of simultaneous transmission and reception through all domestic Ku-band satellites. C.3.4 The earth terminal shall be fully compliant with FCC Part rules and regulations, dated October 1991, incorporated herein by reference and made a part hereof. The terminal shall be fully compatible and operable with all domestic Ku-band satellites in existence as of February 24, 1992. This includes any and all additional specifications required by the various satellite transponder service providers/operators. C.3.5 The awarded contractor shall provide the antenna mounting pad details, in writing, within seven(7) calendar days after the date of award. C.4 Receivers. C.4.1 the terminal shall include two receivers. This shall enable NASA to monitor our own downlink signal while simultaneuously receiving the downlink from a second Ku-band transponder, on the same satellite, using the same polarization. C.4.2 The receivers shall use a low noise block down converter(LNB) located on or near the feed assembly of the antenna. The LNB's noise temperature sahll not exceed 100 degrees Kelvin (NF-1.29 dB) and a minimum conversion gain of 50dB. The frequency stability of the local oscillator inside the LNB shall be <+3 MHz. The period of performance shall be specified in the award document. This synopsis/solicitation incorporates all appicable provisions and clauses in effect throught Federal Acquisition Circular 97-04. This request is FOB Destination. All responsive and responsible sources will be considered. (0124)

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