• UnknownEditor
    4
    Say you had a really nice LNA with 1 dB noise figure expected but you were measuring 1.5 dB. What are the sources of errors? Reflection coefficient of the LNA (which is not good)? Could some low-level bias line oscillation ruin the data? Which is better, PNA with NF option or spectrum analyzer using Y-factor? Maybe that microscope light should have been switched off?

    Or maybe the LNA is not as good as advertised? Obviously, figuring this out should involve measuring a sample greater than one, but that's where we are for now...

    Steve
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