Amateur Extra › E4 Amateur Practices › E4A03
E4A03
Which of the following test instruments is used to display spurious signals and/or intermodulation distortion products generated by an SSB transmitter?
Pick an answer to check it.
Answer: B. Spectrum analyzer
A spectrum analyzer shows every signal across a range of frequencies, so spurious emissions and intermodulation products show up as extra spikes. A logic analyzer looks at digital timing, not RF spectra.
Tip: Spurs and IMD? Look at the spectrum.