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Network analyzers perform component characterization tests. Network analyzers provide a calibrated excitation signal to the RF network or device under test (DUT) and measure the vector response at frequency with phase and amplitude information. Transmission (transmission coefficient, insertion loss, gain), reflection (reflection coefficient, VSWR, return loss), and impedance measurements, as well as the s-parameters S11, S12, S21, and S22, are available from a single VNA.
An oscilloscope is a test instrument used to capture and display a graph of the waveform of an electrical signal over time. For example, it can graph voltage (y-axis) versus time (x-axis) on its display. Oscilloscopes are powerful tools for designing and testing electronic equipment. They play a very important role in determining whether system equipment components are working properly and which components are malfunctioning. They...
View Full VersionAlternating current is suitable for transmission and distribution of electricity over long distances through the grid system. Direct current is a one-way flow of charge and is more reliable than alternating current, but is not suitable for long-distance transmission. Most electronic devices use DC because their voltage is constant, such as devices powered by batteries. Some devices also use rectifiers to convert AC to DC. Power supplies usually have an internal...
View Full VersionThere are several ways to test a DC power supply, here we only introduce a few common methods. Conductivity test: You can use the multimeter's conductivity mode to accomplish this test. Touch the positive and negative terminals of the power supply with the multimeter pen. If it is on, the multimeter will beep. This test is designed to determine if the power supply is delivering power and if there are any breaks in the wiring. Voltage...
View Full VersionSpectrum analyzers are primarily used to measure the amplitude of an input signal in relation to its frequency. A signal analyzer, on the other hand, measures both the amplitude and phase of an input signal at a single frequency. For more information, see the technical overview Spectrum Analyzers and Signal Analyzers. ,
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