This is a new topic to me so it would be great if someone could give me a few pointers. I have an amplifier that I would like to get the frequency response for and a spectrum analyser with Probes A, B, and an Input probe.
My understanding is that Probe A and the Input probe go at the input of my amplifier, and Probe B is at the output. I have read that you do not want to put too much voltage in the Input probe, as this will probably blow up the spectrum analyzer. My question is regarding Probe B. My output voltage is designed to be over 150V (minimum), so do I need to step down this value before measuring with Probe B? It seems to me that if I put a voltage divider to make this output voltage smaller, it would affect the magnitude reading of my frequency response. Is this true, and if so, what should I do about this? Or would it be fine to place Probe B at my output?