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应用文章
This application note introduces the practical aspects of cable and antenna testing, interpreting measurement results, and instrument operation. It looks at calibration options such as CalReady and QuickCal using a Keysight FieldFox handheld analyzer configured as a cable and antenna analyzer. Measurement examples show techniques for measuring insertion loss, measuring return loss, and locating faults in a transmission system.
Cable and antenna measurements are often necessary to verify and troubleshoot the electrical performance of radio-frequency (RF) and microwave transmission systems and antennas. In RF and microwave communications industries, measurements are often made along the coaxial cable connecting a transmitter to its antenna or between an antenna and its receiver. This process, called line sweeping, results in the measurement of the signal attenuation and return loss as a function of frequency. Line sweeping may also help estimate the physical location of a fault or damage along the transmission line using the distance-to-fault (DTF) measurement available on many RF and microwave analyzers, including FieldFox.
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