Figure 4-4.Typical setup for measuring swr.

ATTENUATION AND INSERTION LOSS MEASUREMENTS OF TRANSMISSION LINES

Neets Module 21-Test Methods and Practices
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4-7 Figure 4-3.—Typical swr meter. Figure 4-4 shows a typical swr measurement setup using the swr meter. The signal source is usually a sinusoidal wave that is square-wave modulated at 1,000 hertz. Figure 4-4.—Typical setup for measuring swr. The swr meter usually gets its input from a detector, either a barretter or a crystal diode. This detector must be a square-law device (its output voltage is proportional to the applied rf power) to ensure

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