February 13, 2023🇺🇸Document
Radar Evidence
FAA: Internal Discussion on Radar Filter Adjustments
Internal communications revealed Department of Defense modifications to surveillance thresholds, enabling detection of slow-moving objects previously filtered from radar systems.
Background
Technical advisor Michael Freie documented changes to aerial tracking protocols following the balloon incidents. He noted that defense authorities had modified minimum velocity thresholds, which previously excluded objects traveling below 40 to 60 knots. These adjustments allowed surveillance networks to register slow-moving platforms that earlier software would have automatically discarded as irrelevant clutter.