SDR‑based UAV Detector OTA Upgrade Via Bluetooth & Type‑C For Expanding Signal Signature Library 1, Overview KZ‑12 (E) This SDR drone detector supports convenient OTA upgrades through Bluetooth or Type‑C port. Operators can expand the UAV signal signature library on site without opening the device housing. Continuous library updates improve recognition capability for newly launched and custom‑modified drones. The local screen displays upgrade progress clearly to avoid