Design basis, bill of materials, coincidence logic, and operating protocol

Design basis, bill of materials, coincidence logic, and operating protocol C. J Tully Independent Researcher, Engineer, Australia, Founder of Aerial Anomaly Detection (AAD) [email protected] 11th November 2026 Prepared as a citizen-science instrument note. It specifies a passive ground station that can be assembled from commercial parts. It does not claim a sensor that identifies unidentified anomalous phenomena as a positive class. Version 1.1, 11th November 2026 (version 1.0: 18th October 2026) Abstract Unidentified anomalous phenomena, abbreviated UAP, are a residual category. An object earns the label only after ordinary explanations have been tested and found insufficient. A device that "detects UAP" in the strict sense therefore cannot exist until the physical signature of the residual class is known. What can be built is a calibrated aerial census station that records every detectable object, rejects known classes with independent evidence, and archives the remainder as candidates. This paper specifies LATTICE-1, a single-site passive station scaled from the multimodal architecture published by the Galileo Project and from the sensor recommendations of the NASA Unidentified Anomalous Phenomena Independent Study Team. The core instrument combines a wide-field visible camera, two software-defined radios for Automatic Dependent Surveillance–Broadcast (ADS-B) and for spectrum context with triggered IQ snippets, a receive-only 2.4 and 5.8 GHz occupancy scanner, a three-axis magnetometer placed clear of local electronics, an acoustic channel, a weather sensor with a wind source, and a GPS pulse-per-second time base. An optional long-wave infrared camera adds thermal contrast. A candidate event requires a track that survives aircraft, drone, bird, meteor, balloon, satellite, and instrument-artifact tests inside a defined coincidence window. Parts for the core station cost about 1,540 AUD (about 1,060 USD) at Australian retail in November 2026, or about 1,400 AUD (about 960 USD) for a minimum viable station, excluding a second site for triangulation.