Agilent Technologies N9320A Guia do Utilizador descarregar pdf (Página 72)

64 N9320A Spectrum Analyzer

3 Functions and Measurements

Measuring Return Loss Using the Reflection Calibration Routine

This procedure uses the reflection calibration routine in the

proceeding procedure “Making a Reflection Calibration

Measurement” on page 62 to calculate the return loss of the

370 MHz low pass filter.

1 After calibrating the system with the above procedure,

reconnect the filter (DUT) in place of the short circuit used

for calibration. Do not change any of the analyzer settings or

the measurement setup may be invalidated.

2 Use the marker to read return loss. Position the marker with

the front- panel knob to read the return loss at that

frequency.

Rotate the knob to find the highest peak and the readout is

the maximum return loss. See Figure 24.

Figure 24 Measuring the Return Loss of the Filter

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Agilent Technologies N9320A Guia do Utilizador Página 72