Turn a WiFi 7 Router into a 320Msps Software Defined Radio Receiver
A technical project has successfully repurposed a Wi-Fi 7 router into a high-performance software-defined radio (SDR) receiver. By replacing the original firmware, the device can capture wideband signals and stream them over a 10GbE connection for real-time spectrum analysis.
Why it matters
This demonstrates the potential for consumer-grade networking hardware to be repurposed for advanced signal processing and radio frequency research.
Turns a Gemtek W1700K Wi-Fi 7 router into a wideband software-defined receiver. The router's MediaTek MT7996 radio captures raw 14-bit IQ at up to 320 Msps, its Airoha AN7581 SoC streams it over 10 GbE, and a Linux host shows it as a live spectrum and waterfall in the browser, with the receiver's controls next to it.
The whole 2.4 GHz band at 320 Msps, live, with the decimation's roll-off corrected in the stream ("flatten"): a 262,144-point FFT of every sample, 100 spectra a second (this recording runs at 50 frames a second).
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