https://nalar.dev/tags/antenna/ Recent content in Antenna on Nalar Hugo en-us Sat, 19 Sep 2026 00:00:00 +0000 https://nalar.dev/what-actually-receives-radio-signal-antenna-tuning-detection-amplification/ Sat, 19 Sep 2026 00:00:00 +0000 https://nalar.dev/what-actually-receives-radio-signal-antenna-tuning-detection-amplification/ <p>A radio receiver does not begin with a transistor. It begins at the antenna terminals, where an electromagnetic field produces a small RF voltage and current that the rest of the circuit can process.</p> <p>That distinction matters in discrete-transistor projects. An antenna, a tuned network, a detector, and an amplifier perform different electrical jobs. Combining their names into &ldquo;the radio circuit&rdquo; hides the boundary that determines whether a receiver can select a station, recover its modulation, and produce enough output to hear.</p>