How's the best way to drop 150V to 100V which is the maximum input of my spectrum analyzer in order to view the 150 volts? I've seen a small cap used and know that a resistor can be used but does that mess with the spectrum analyzer accuracy? (frequency ranges from 10Khz-50Khz. Thanks much Emmett
-- Resistance won\'t, capacitance will. [mess with the spectrum analyzer accuracy] What\'s the input impedance of your spectrum analyzer, what\'s the impedance of your 150V source, and what does that 150V look like?
I wouldn't even think about inputting 100 into the spec, rather 15V. A 10:1 divider should do that nicely. What accuracy did you have in mind ? Remember 3dB is just a factor of squareroot 2 in amplitude and the spec is possibly having a dynamic range of 120dB or so.
Rene
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