Input filter and preamplifier – Jupiter modular receiver


Vasily Ivanenko blogged about his input and RF preamplifier build:

Above — Build of the input and RF preamplifier stage. I put in a 0 or 6 dB attenuator right at the input. That’s double-sided Cu+ board with copper vias joining the 2 surfaces intermittently and also at crucial ground points.

Project info at QRP HomeBuilder blog.

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