Keysight 8558B Spectrum Analyzer

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The Keysight 8558B is a 100 kHz to 1500 MHz spectrum analyzer plugin for use with the 853A or 182T display. The high performance and convenient operation of this economical unit is ideally suited for a variety of applications in production, R&D or field service measurements.
Simple, 3-Knob Operation
Preset the 8558B to the color coded, "basic-operation" settings, and use the coupled controls to make most measurements in three easy steps. Tune to the signal; the LED readout displays its frequency. Zoom-in on the signal by reducing the span width; the resolution bandwidth, video filter, and sweeptime automatically change to an optimum value for a calibrated display. Then, change the reference level to bring the peak of the signal to the top of the screen for the most accurate amplitude measurement.
Absolute Amplitude Calibration
Signal levels can be read directly from the CRT in dBm (dBm V for Option 002) without the use of external standards or calculations. The signal level represented by the top CRT graticule line is always indicated by the reference level control, and vertical scale factors of 10 dB/div, 1 dB/div, or linear can be selected.