https://www.counteruavradar.com/tags/site-survey/ Recent content in Site Survey on Counter UAV Radar — Low-Altitude Surveillance Radar Hugo en-us Sat, 28 Mar 2026 10:00:00 +0800 https://www.counteruavradar.com/knowledge-base/what-makes-an-rf-bearing-trustworthy-in-real-sites/ Wed, 15 Apr 2026 00:00:00 +0000 https://www.counteruavradar.com/knowledge-base/what-makes-an-rf-bearing-trustworthy-in-real-sites/ <p>An RF bearing becomes trustworthy when operators can treat it as evidence rather than as a hint. That does not happen because a brochure promises a small angle error. It happens because the bearing is repeatable, physically plausible, calibration-aware, and validated in the actual site where it will be used.</p> <p>That distinction matters in low-altitude security because many teams still buy direction finding as if bearing accuracy were a fixed property of the sensor alone. In practice, the same DF hardware can perform very differently from one site to another, and even from one sector of the same site to another, simply because the propagation environment, calibration condition, or signal geometry changed.</p>