NISE East, PO Box 190022, North Charleston, SC 29419-9022

58 -- DIGITAL WIDEBAND TRANSMISSION SYSTEM (DWTS) SOL N65236-97-R-0345 DUE 041597 POC Nina Burgsteiner, Code 1115NB, (803)743-4362, Fax (803)743-6160, Email burgsten@niseeast.nosc.mil E-MAIL: NISE East Charleston, duncanj@niseeast.nosc.mil. Indefinite Quantity contract for commercial equipment that performs the functions of radio, RF power amplification, and antenna. A description of the required equipment functions follows. RADIO: 2 per system, 1350 to 1850 MHz, full duplex, multi-channel, multi-rate, digital ratio, (144, 256, 288, 512, 576, 1024, 1544, and 2048 kb/s) capable of 30 NM range using 4001 channels at 125 kHz spacing with up to 10 preset channels stored in nonvolatile memory. Radio will have digital voice orderwire capability and be compatible with the USMC AN/MRC-142 and the US Army AN/GRC-226(V)2. Minimum interface requirements are RS422 input, 70 MHz IF input and output. RF POWER AMPLIFICATION: 2 per system, to be used with the aforementioned radio, variable over entire range from .1 watt to power required to achieve range of 30 NM not to exceed 200 watts Effective Radiated Power with a bit error rate of (1 X 10 to the 6th power) or better. Current system requirements: 200 Watt Traveling Wave Tube (TWT) Amplifier. Full power produced into load at VSWR less than or equal to 2:1; 1 dB degradation for VSWR between 2:1 and 2.5:1; operation at reduced power for VSWR above 2.5:1. ANTENNAS; Est. 4 each per system, to be used with the aforementioned radio and RF amplifier capable of up to 200W continuous. Two antennas with RF input and output supporting full duplex communications with a minimum 0 db gain capable of 360 degree horizontal coverage with a 60 degree vertical beamwidth centered on the horizon. VSWR not greater than 2:1 with a nominal impedance of 50 ohms. This solicitation requires equipment that performs the following core functions which include as a minimum: modem, radio, and RF distribution. The Modem and radio are typically included together under the title radio in order to meet compatibility requirements with the AN/MRC-142 and the AN/GRC-226(V)2, however, a 70 MHZ IF input is required to inable the use of an external modem. In addition, a 70 MHz output is requested for control features used in the RF distribution system. Using component pieces, RF distribution requires antennas, preamp assembly (currently GFE), RF amplifier, and multiple interface unit (GFE providing RF switching, power to the low noise amplifier, and control of receive filtering external to radio units). For this solicitation, in the event of a split award, the RF amplifiers and antennas will be provided by vendors and integrated by NISE Ease. However, a system level approach integrated by the vendor is desirable. All equipment must be able to withstand a shipboard environment. Also required are 6 month supply of spares, technical manual, Planned Maintenance Requirements List, Test equipment, and installation test plan. Desired delivery is 6 month or less from date of delivery order. While price is a significant factor, award will be based upon a combination of price, equipment features, delivery schedule and past performance. The solicitation and any documents related to this procurement will be available over the Internet on or about April 20, 1997.The WWW address, or URL of the NISE East home page is (http://www-nise.nosc.mil). Select "Doing Business with NISE East", "Business Opportunities", and On-Line RFP's. Prospective offerors shall notify this office of their intent to submit an offer, providing the company name, address, phone number, fax number, point of contact, email address and business size to the e-mail address specified above.. It is the offeror's responsibility to monitor this site for the release of the solicitation and any amendments. No paper distribution of these documents will be provided. Potential offerors will be responsible for downloading their own copy of the solicitation and amendments (if any). All responsible sources may submit an offer which shall be considered by the agency. (0093)

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