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  "publishedAt": "2026-06-25T08:32:56.000Z",
  "site": "https://lxer.com",
  "textContent": "Crowd Supply recently featured QuadRF, a 4×4 MIMO software-defined radio platform designed for spatial RF visualization, beamforming, and phased-array experimentation. The platform includes four coherent transmit/receive channels, swappable dual-polarization antennas, an integrated Raspberry Pi 5, and a browser-based interface for viewing nearby wireless activity. QuadRF uses four coherent antennas to measure differences in signal arrival […]",
  "title": "QuadRF uses Raspberry Pi 5 for 4×4 MIMO SDR, RF visualization, and scalable phased-array support"
}