common problems

  • How do I use a digital multimeter?

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    A digital multimeter is a versatile test and measurement tool that can measure many types of signals. To learn more about how to measure voltage, current, 2-wire resistance, 4-wire resistance, capacitance, temperature, diode and oscillating signal frequencies, as well as how to check for conductivity, visit our blog by clicking the link below. How to use a digital multimeter ,

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  • How to read the measurement results of a digital multimeter?

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    Most handheld or benchtop digital multimeters display measurements digitally. The number of digits displayed on the screen usually represents the measurement resolution of the digital multimeter. Resolution is the smallest detail that a digital multimeter can quantitatively determine when making a measurement. Therefore, the more digits a digital multimeter displays, the higher its resolution. Handheld digital multimeters are typically capable of displaying three-and-a-half and four...

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  • What is a digital multimeter?

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    A multimeter is an instrument that can measure a wide range of parameters, such as alternating (AC) or direct current (DC) voltage, AC or DC current, resistance, temperature, capacitance, and so on. Modern digital multimeters use digital and logic technology to become smaller and smaller with more and more built-in functions. By introducing digital technology, digital multimeters can provide graphical displays, data logging and signal digitization as well as...

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  • How to use VNA?

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    Vector network analyzers measure a wide variety of devices and networks and offer a wide range of measurements for a variety of usage scenarios, such as spectrum analysis, pulse measurements, power amplifier (PA) characterization, and active device testing. The following guide describes how to set up a network analyzer for measurements, calibrate the measurement system, and interpret the measurement results: The uses of VANs are so wide-ranging that each measurement...

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  • What does the best network analyzer look like?

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    The selection criteria for a VNA depends heavily on the application or usage scenario. Typically, selection criteria include frequency range, number of ports required (from 2 to 24 (multiport) and even 48 (with switching matrix)), output power, and instrument class from economy to handheld to high-end. Vector network analyzers are both signal generators and receivers...

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  • What are the types of network analyzers?

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    网络分析仪是用于测量射频和微波器件性能的关键仪器,其类型可根据不同标准分类如下: 网络分析仪的选择需根据测量需求(如频率范围、精度、便携性)和应用场景(研发...

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  • How does a vector network analyzer work?

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    A network analyzer consists of a signal source and a receiver. The receiver will detect changes in the output signal of the device (or network) and then compare it to the source signal fed into the device. To evaluate the effect of the device on current and voltage, the VNA measures the resulting amplitude and phase response. This results in transmission and reflection measurements, impedance and s-parameters, which can be used by the test engineer to...

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  • What are network analyzers used for?

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    Network analyzers perform component characterization tests. A network analyzer provides a calibrated excitation signal to an RF network or device under test (DUT) and measures the vector response at frequency with phase and amplitude information. A VNA provides transmission (transmission coefficient, insertion loss, gain), reflection (reflection coefficient, VSWR, return loss), and impedance measurements, as well as s...

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  • What is VNA?

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    Vector network analyzers (VNAs) are test instruments that measure electrical network parameters. They are essential for radio frequency (RF) and microwave component analysis of a wide variety of passive and active devices including filters, antennas and power amplifiers. Network analyzers are ideal for transmission, reflection and impedance measurements as well as s-parameter measurements during design and production. Network analyzers...

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  • How do I calibrate my spectrum analyzer?

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    You can use the Keysight U9361 RCal Receiver Calibrator to perform an accurate and reliable calibration of your spectrum analyzer/signal analyzer by following these steps: Learn more about how to calibrate a spectrum analyzer. , and

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