The Department of Defense, specifically the Department of the Air Force, is seeking proposals for the repair of eight N9913A/N9923A FieldFox RF Vector Network Analyzers, which are critical for maintaining the ATCALS systems used by pilots for landing aircraft. This procurement will be a Sole Source Direct Award to Keysight Technologies Inc., and the contract will be structured as a Firm Fixed Price (FFP) agreement. The successful contractor will ensure the operational readiness of these analyzers, which play a vital role in aviation safety and efficiency. Proposals are due by September 20, 2024, at 3:00 PM CST, and interested parties should direct inquiries to Donald Wallar at donald.wallar@us.af.mil or call 405-739-7664.