Space and Naval Warfare Systems Command, 4301 Pacific Highway, San Diego, CA 92110-3127

58 -- LIGHT WEIGHT UHF SATCOM ANTENNA RFI SOL N00039-00-R-3217 DUE 061200 POC Robert R. De Visser, devisser@spawar.navy.mil; Mark Lopez, lopezm@spawar.navy.mil WEB: Click on the: 1. Business Opportunities Link. 2. Browse, http://www.spawar.navy.mil. E-MAIL: Click here to contact the contracting specialist via, devisser@spawar.navy.mil; lopezm@spawar.navy.mil. The Space and Naval Warfare Systems Command, Joint Maritime Communications System (JMCOMS) Program Office, is seeking potential sources to supply the Navy and joint forces with a commercial off-the shelf, non-developmental light weight antenna system. This is NOT an RFI for an OE-82 follow-on antenna system. This is for a smaller, light weight antenna for applications on small craft. The antenna system shall be capable of maintaining upper hemispherical coverage independent of motion and maneuver of the ship. The antennas shall have hemispheric coverage from two degrees above horizon to zenith. The antenna system shall require no manual inputs or operator attendance to maintain the antennas pointing to true satellite azimuth The antenna system shall meet the following performance requirements: RF Power handing of 200 watts average power. Frequency range of 240 to 318 MHz. Polarization shall be right-hand circular. Gain shall be 10-12 dBic The 3 dB beamwidth shall be no less than 33 degrees from 240 to 318 MHz. VSWR of the radiating assembly shall not be greater than 1.5 across 240 to 292.2 MHz and 1.4:1 across 292.2 to 318 MHz. Total individual antenna weight shall be less than 280 lbs, less than 100 lbs. is desirable. Total topside antenna system weight shall be less than 560lbs., less than 400 lbs. is desirable The individual antenna physical dimensions shall not exceed 4.5 ft high by 4.5 ft deep by 4.5 ft wide. The Receive frequency range shall be 243.0 to 270.5 MHz. The receive signal shall require amplification or a preamp, the preamplifier gain shall be 32 + 2.0 dB at the center frequency. The preamplifier noise shall not exceed 2.0 dB. The antenna system will also require a diplexer for bandpass filtering on the transmit and receive bands. A transmit-transfer and receiver-transfer switching unit shall be required for automatically switching from one antenna to the other. The switching unit shall have a switch for single satellite coverage and dual coverage, allowing independent antenna tracking and dual satellite access options. An antenna control unit, configured for a 19 inch cabinet shall be provided for control of the antenna system. The antenna control unit shall process operator input commands of true elevation, azimuth, and own ship heading inputs from the own ship data set and convert them to commands for antenna pointing. Any offeror who can provide an item which meets the above characteristics should, at a minimum, submit the following information: System description and performance which addresses the desired capabilities, the unit cost for quantities of 1, 10 and 30 systems, the included capabilities at the submitted cost, production rates, length of time product has been on the market, quantities produced to date, supporting technical documentation, warranty information, and the appropriate company points of contact. Interested parties must indicate whether they are small business, small disadvantaged, or 8(a). This is not an RFP, a promise to issue an RFP, nor will the government pay for information received in response to this synopsis. Acknowledgment or receipt will not be made nor will telephone inquires be honored. Responses to this synopsis must be received by 1600 PDT on 12 June 2000 in writing and delivered via mail to the following address: Commander, Space and Naval Warfare Systems Command, Attn: Code 02-32K, San Diego and must reference synopsis number N00039-00-R-3217 on both the enclosure(s) and mailing envelope. Posted 05/10/00 (W-SN453306). (0131)

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