The Department of Agriculture, specifically the Agricultural Research Service (ARS), is seeking proposals for the procurement of an L-band passive remote sensing system designed for soil moisture monitoring, intended for deployment via quadcopter drones. The system must meet specific technical requirements, including a weight limit of 4 kg, operation at a frequency of 1.4 GHz with dual polarization, and a maximum antenna height of 40 cm, while consuming no more than 10W of power. This procurement is crucial for advancing agricultural research through enhanced remote sensing technology, with delivery expected at the USDA-ARS Hydrology and Remote Sensing Laboratory in Beltsville, Maryland, within 60 days post-award. Interested vendors must submit their quotations by September 16, 2024, to Elizabeth Wilson at elizabeth.wilson2@usda.gov, ensuring compliance with all specified requirements and documentation.