How so? This article also describes that switches U14 and U12 can be broken. But after all, the LNA gain control works for me. I want to renovate.Īfter reading this article, I realized that most likely my LNA chip (U25 in the diagram) burned out. I ask for help in identifying the faulty part. Everywhere the result is the same - I turn on the amplifier - the signal disappears.Īt the same time, I tried to transmit signals. This is not a program error for sure, since I checked it both on the phone and using a portapack. Accepts signals without amplifier, and LNA and VGA adjustment in SDR sharp works too!īut when I put a tick on "Amp", then all signals disappear.Īs I understand it, I punched through the static through the antenna input. ![]() ![]() Good day! I ask for help with repairing the hackrf one amplifier.
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