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Figure 5-10A.Spectrum analyzer stability measurements
Figure 5-12.Frequency-conversion characteristics

Neets Module 21-Test Methods and Practices
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5-13 Figure 5-10B.—Spectrum analyzer stability measurements. Figure 5-10C.—Spectrum analyzer stability measurements. The swept-frequency response of a filter or amplifier and the swept-distortion measurement of a tuned oscillator are also measurable with the aid of a spectrum analyzer. However, in the course of these measurements, a variable persistence display or an X-Y recorder should be used to simplify readability. Examples of tuned-oscillator harmonics and filter response are illustrated in figure 5-11. Frequency- conversion devices such as mixers and harmonic generators are easily characterized by such parameters as conversion loss, isolation, and distortion. These parameters can be displayed, as shown in figure 5-12, with the aid of a spectrum analyzer.






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