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Xiegu G90 HF Radio SDR 20W SSB/CW/AM Built-in Auto Antenna Tuner New Version

The Physics of the Field: Impedance, Power, and Portable Architecture in the Xiegu G90

Published on Jan. 15, 2026, 12:51 p.m.

If Software Defined Radio (SDR) is the brain of the Xiegu G90, then the amplifier and antenna tuner are its muscle. While the d…

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Xiegu G90 20W power (1) portable HF radio setup (1) impedance matching basics (1) automatic antenna tuner physics (1) radio thermodynamics (1) SWR explained (1)