{"rewrite":{"id":"r_4db97f79b03b118e5ace0992","clusterId":"c_19c1eaeb1b764fb0f1f69431","slug":"quadrf-kit-lets-you-see-wi-fi-through-walls-and-track-drones","model":"deepseek-v4-flash","headline":"QuadRF Kit Lets You See Wi-Fi Through Walls and Track Drones","summary":"QuadRF is a software-defined radio kit powered by a Raspberry Pi 5 and an FPGA board that visualizes wireless signals. Developed by Martin McCormick, the device can detect Wi-Fi signals through walls and track drones by their RF emissions. YouTuber Jeff Geerling tested a prototype, showing real-time visualization on a screen. The QuadRF is available for pre-order on Crowd Supply at $499, but requires adherence to radio transmission laws.","whyItMatters":"QuadRF brings a phased-array RF visualization capability that was previously the domain of expensive lab equipment into a $499 hobbyist kit, making the invisible world of wireless signals observable and trackable by anyone with a Raspberry Pi.","webCardHtml":"\u003cp\u003eThe QuadRF board uses MIPI, a high-speed interface normally used for Raspberry Pi cameras, to achieve data rates above 5 Gbps. Its four patch antennas operate in the 4.9 GHz to 6.0 GHz band. In practice, Geerling demonstrated the device by pointing it at a smartphone running a speed test, which showed RF signals on a PC screen. He also detected Wi-Fi signals emanating from behind a wall and tracked a drone\u0026#39;s position outdoors. The basic kit costs $499, but users must comply with local radio regulations when transmitting.\u003c/p\u003e","blueskyPost":"QuadRF is a $499 Raspberry Pi-powered kit that visualizes wireless signals, letting you see Wi-Fi through walls and track drones. Jeff Geerling tested it. Pre-orders open on Crowd Supply.","twitterPost":"QuadRF is a $499 software-defined radio kit that visualizes RF signals, including Wi-Fi through walls and drone tracking. Pre-orders start on Crowd Supply. Jeff Geerling tested it.","threadsPost":null,"newsletterBlurb":"The QuadRF kit uses a Raspberry Pi 5 and FPGA board to visualize wireless signals in real time. It can detect Wi-Fi through walls and track drones by their RF emissions. The device is available for pre-order at $499.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260713-quadrf-spot-wifi-radio-waves/\",\"title\":\"QuadRF visualizes invisible wireless signals to detect Wi-Fi through walls and drones in flight\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4246,"outputTokens":2907,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1783934128,"createdAt":"2026-07-13T09:06:09.000Z","publishedAt":"2026-07-13T09:07:28.000Z","updatedAt":"2026-07-13T09:06:09.000Z"},"cluster":{"id":"c_19c1eaeb1b764fb0f1f69431","canonicalTitle":"目に見えない無線信号を可視化して壁越しのWi-Fiや飛行中のドローンを検知する「QuadRF」","representativeArticleId":"a_e48494cb29801d017ffbdde1","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-07-13T07:00:00.000Z","lastSeenAt":"2026-07-13T07:00:00.000Z","updatedAt":"2026-07-13T09:07:29.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260713-quadrf-spot-wifi-radio-waves/","title":"目に見えない無線信号を可視化して壁越しのWi-Fiや飛行中のドローンを検知する「QuadRF」"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":null}