2021-07-24

VNA

NanoVNA H4 故障 → 修理

Bias-Tを測定中、うっかり電源を入れてしまった。「あっ!」と思ったけど、後の祭り。電圧がかかったのはCH1(RX)側。S21 Gainが0dBにならず、0.25dBくらいの下駄を履いたような状態になってしまった。キャリブレーションしてこ...

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