Anritsu S113C Guia do Utilizador descarregar pdf (Página 92)

Step 6. Change the frequency in the second source from 1900.100 MHz to 1900.050

MHz gradually and observe the effect. Figure 5-12 shows the results with the

two signals spaced 50 kHz apart using a signal combiner/splitter with a loss of 6

dB.

Step 7. Change the resolution bandwidth to 30 kHz. Figure 5-13 shows the results after

changing the RBW using a signal combiner/splitter with a loss of 6 dB.

The two signals should still be observable with the 10 kHz resolution bandwidth, but may

be difficult to detect with the 30 kHz resolution bandwidth. Narrowing the span may help in

detecting the differences in these two signals.

5-20

Chapter 5 Spectrum Analyzer Measurements

Figure 5-12. Measurement of Two Signals Having Unequal Amplitudes

Figure 5-13. Measurement of Two Signals Having Unequal Amplitudes

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Anritsu S113C Guia do Utilizador Página 92