ESC/MCK, 50 Griffiss St., Hanscom AFB, MA 01731-1620

59 -- GLOBAL POSITIONING SYSTEM STATION CLOCKS WITH ANTENNA CABLES AND ENCLOSURES, NOTICE OF INTENTION TO AWARD TO TRAK SYSTEMS POC Stephen DiLustro, Buyer, 617-271-6283; Joseph Zimmerman, Point of Contact, 617-217-6279. Notice of intention to award firm fixed price purchase orders to TRAK Systems of Tampa, FL for equipment that will support Time Distribution Subsystem (TDS) operations at Dual Modem Upgrade sites. The equipment to be delivered consists of 13 fully developed Global Positioning System (GPS) station clocks (TRAK Systems part number 8820A-16) with antenna cables and enclosures. The GPS station clocks have a 1 PPS reference output with the following characteristics: accuracy within +/-100 ns, amplitude of +10 +/-1 volt DC referenced to ground into 50 Ohms, maximum rise time of 50 nanoseconds, and connection via front-panel BNC connectors. The time message is received by the Atomic Frequency Time Reference (part of the TDS) once each second, within 100 microseconds after the leading edge of the 1 PPS. It is transmitted with its Most Significant Bit first as specified in MIL-F-28811. The interface has the following characteristics: signal level in accordance with MIL-STD-188 and data rate of 50 baud, 200 milliseconds per bit. Authority to procure is pursuant to 10 USC 2304 (C) (1), only one responsible source. Delivery is required at Hanscom AFB, MA not later than 90 days after contract award. This synopsis does not constitute a Request for Proposal (RFP) or an Invitation for Bid (IFB) and is not intended to be construed as a commitment by ESC. Despite ESC's intent to contract sole source to TRAK Systems, if your firm believes that it can meet the above requirements, submit a qualification package to ESC/MCK, Mitre-D Bldg., 50 Griffiss Street, Hanscom AFB, MA 01731-1620, Attn: Mr. Stephen DiLustro. (0312)

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