NOTICE OF INTENT TO INVITE BIDS FOR ASW EQUIPMENT The Supreme Allied Command, Atlantic in the role of Host Nation, hereby issues a Notice of Intent to Invite Bids for ASW Research Equipment (Receivers and Transmitters), under NSIP programme, Project 9NB91001, ACLANT Capability Package 9B5170R1. Details of proposed procurement are included in the Performance Specification Sheet. In accordance with NATO Docuement AC/4-D/2261 (1996 Edition), it is requested that you provide a Declaration of Eligibility for those firms who are eligible and interested in bidding this project. The list of any expressions of intrest should be provided no later than 30 November 1999 to: NORTH ATLANTIC TREATY ORGANIZATION SUPREME ALLIED COMMANDER, ATLANTIC 7857 BLANDY ROAD, SUITE 100 ATTN: CODE HC-822 NORFOLK, VA 23551-2490. Perfromance Specification Sheet: To support ongoing reasearch at the NATO SACLANT Undersea Research Centre (SACLANTCEN), an international bid will be issued in January 2000 for the procurement of 3-4 receive buoys and on transmit buoy. The design and constructtion of the buoys will require expertise in the areas of underwater acoustic, electronic and ocean engineering. The transmit bouy will be a self-contained unit with amplifiers, signal generator and batteries. It will transmit a medium frequency, pre-programmed waveform based on commands received via a radio link. The acoustic frequency will be around 3.0kHz, the bandwidth around 200Hz and the maximum source level 215dB re uPa @1meter. The receive buoys will also be self-contained with acoustic system, in-bouy recording, batteries and electronics and will be equipped with environmental monitoring sensors. Each buoy will have 64 receive channels with hydrophones mounted in a retractable "umbrella" configuration. Vertical directivity will be required to supress surface noise and horizontal directivity will be in the order of 6-7 degrees at 3kHz. A 24-bit acquisition system will sample and pre-process the received signal and transmit them via radio links to the ship where data will be delivered according to apredefined digital format (FPDP). The data rate of the radio link will be 6Mbps at a distance of 5-6 nautical miles. All buoys will be designed to a maximum operation depth of 250 meters. They will be deployed in a double moored configuration from a research ship. SACLANTCEN has made a prototype of the receive buoy including in-buoy electronic and retractable hydrophone mounting. A close cooperation is expected between the manufacturer and SACLANTCEN to draw on the experience gained during this prototype process. End of Performance Specification Sheet. Any requests for information may be directed to LT Diana Carsten (757)445-3609 fax only. Posted 11/12/99 (W-SN400228).

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