SPACE AND NAVAL WARFARE SYSTEMS COMMAND 2451 CRYSTAL DRIVE ARLINGTON, VA 22245-5200

58 -- COMMON HIGH BANDWIDTH DATA LINK SHIPBOARD TERMINAL (CHBDL-ST) POC V. DUBERRY, 0232, (703) 602-0642. Synopsis No. 66. The Navy will procure fourteen Common High Bandwidth Data Link Shipboard Terminals. This is a follow-on effort to the development contract awarded in September 1991. The Navy requires a wideband, microwave, shipboard digital data link capability to support new tactical reconnaissance systems, including the Battle Group Passive Horizon Extension System (BGPHES) and the Advanced/Tactical Air Reconnaissance System (ATARS)/Joint Services Imagery Processing System - Navy (JSIPS-N). CHBDL-ST is a shipboard communications terminal that provides a line-of-sight, full-duplex, data communications link between shipboard signal processing equipment (e.g., BGPHES Surface Terminal or JSIPS-N Tactical Input Segment (TIS)) and remote reconnaissance aircraft, equipped with a Common Data Link Airborne (CDL A/B) System. The terminal operates in the X-band using offset QPSK and BPSK modulation. The CHBDL-ST receiver and transmitter are tunable in the operating frequency band. It transmits at a 200 kbps data rate (prior to error correction and spread spectrum encoding), and receives at variable data rates, including 10.71 Mbps, 137 Mbps and 274 Mbps. The system utilizes forward error correction coding and interleaving techniques and employs an encryption and decryption capability in accordance with the classified interface design specifications of the supported systems. The CHBDL-ST transmits digital commands for control of sensor equipment on the aircraft, data link control commands, and a voice link in accordance with CDL specifications. It receives digital sensor data from the aircraft, link status information, aircraft navigational data, ranging data, and a voice link in accordance with CDL specifications. The CHBDL-ST connects with the shipboard signal processing equipment via baseband data interfaces to provide this mission data and receive sensor equipment commands. The CHBDL-ST utilizes two independent antenna systems with switching capability between them and sequentially supports interfaces to two separate shipboard signal processing systems located in different sections of the ship. Compensation for shipOs motion is provided to maintain and stabilize antenna pointing angle. The command uplink has Low Probability of Intercept (LPI) characteristics based upon parabolic antenna directivity, signal modulation format, and transmitter power output control. Electronic Counter Countermeasures (ECCM) are provided to ensure mission performance in a hostile ECM environment. The Navy will have 10 CHBDL-ST systems in the inventory by 1998. The data link terminals to be purchased under this follow-on contract must be interoperable with the Common Data Link Airborne (CDL A/B) subsystems in Navy, Air Force, and Army systems. Those firms interested and have the capability to develop, build, and install fourteen CHBDL-ST systems by the year 2001 with the first system to be fielded within 15 months of contract award and subsequent delivery of one system every two months should provide a written summary of their qualifications. Your qualification package should address how you will ensure interoperability with the Common Data Link Airborne (CDL A/B) systems currently in use throughout the U.S. military services. Areas of high risk should be identified along with technology availability forecasts and system cost. Interested firms should indicate whether they are Large Business, Small Business (SB), Small Disadvantaged Business (SDB), or 8(a). This is not a RFP, potential offerors will not be paid for any effort in responding to this request. Closing data for submission of responses is 15 days from publication of this notice. Respondees should send their submittal to Commander, Space and Naval Warfare Systems Command, Department of the Navy, 2451 Crystal Drive, Arlington, VA 22245-5200, Attn: Ms Vera Duberry, Code 02-32F. Response must reference this Synopsis No. 66 on both enclosures and the mailing envelope. (0268)

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