The FPV portable detector is a device that integrates detection, video capture and storage functions. It supports full-band detection, and can identify FPV analog video transmission signals. It can also detect mainstream models on the market, DIY drones, and alert users through multiple means such as sound, light and vibration. The device integrates video capture, real-time display and storage functions, and is suitable for various scenarios such as daily security patrols, protection of key areas, team collaboration and investigation and evidence collection.