The Department of Transportation, specifically the Federal Aviation Administration (FAA), is conducting a market survey to gather information for the acquisition of Monopulse Secondary Surveillance Radar (MSSR) Dual Channel Parrots. The procurement aims to acquire 16 dual channel parrots to support air traffic control operations through 2035, with contractors responsible for manufacturing these units in compliance with FAA standards. The MSSR radars are critical for providing essential radar data for air traffic management, ensuring the safety and efficiency of air travel. Interested vendors must submit their responses, including capability statements and rough order of magnitude estimates, by 4:00 p.m. Central Time on April 2, 2025, to Jason Perry at jason.m.perry@faa.gov, marking submissions as proprietary as necessary.