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Q1: The smaller the resolution bandwidth (RBW), the better? A: The smaller the RBW, the better the sensitivity of the spectrum analyzer suplied from  Wholesale Spectrum Analyzer . However, the scanning speed will be slower. RBW must be set according to the actual test requirements to find a balance between sensitivity and speed -- to ensure both accurate measurement signal and fast measurement speed. Q2: How to choose averagetype: power? Logpower? Voltage? Logpower averaging: also known as videoaveraging. The averaging method has the lowest level of noise. Ideal for testing low-level continuous wave signals. However, there will be a certain error for "noise-like" signal, such as wideband modulation signal w-cdma. Power average: also known as RMS average, this average method is suitable for "noise" signal (such as: cdma) total power measurement. Voltage averaging: this averaging method is suitable for measuring the rise and fall time of an am signal or a...

Any instrument that produces a test signal is referred to as a signal source. Also known as a  Signal Generator , it is used to generate electrical test signals with specific parameters required by the circuit under test. When testing, studying or adjusting electronic circuits and equipment, in order to measure some electrical parameters of the circuit, such as measuring frequency response, noise coefficient, voltmeter calibration, etc., it is required to provide electrical signals that meet the specified technical conditions, in order to simulate the excitation signal of the equipment to be tested in actual work. A sinusoidal signal source with known amplitude and frequency is used when measuring the steady-state characteristics of the system.  When testing the transient characteristics of the system, a rectangular pulse source with known leading edge time, pulse width and repetition period is required. And requires the signal source output signal parameters, such as f...

How to set up the high sensitivity of the  Spectrum Analyzers  to facilitate the observation of small signals? A: first, set the corresponding center frequency sweep width (span) and reference level according to the size of the small signal under test;Then, the attenuation value is gradually reduced in the absence of any overload warning in the spectrum analyzer.If the SNR of the measured small signal is less than 15db, RBW will be gradually reduced. The smaller RBW is, the lower the base noise of the spectrum analyzer will be, and the higher the sensitivity will be. If the spectrum analyzer from  Spectrum Analyzer Supplier  has pre-amplifier, opening pre-amplifier and pre-release can improve the noise coefficient of the spectrum analyzer, thus improving the sensitivity. For small signals with low signal-to-noise ratio, it can reduce VBW or adopt trajectory average to smooth the noise and reduce fluctuation. It should be noted that the measurement result o...

When your  Spectrum Analyzers  cannot be shipped due to the electromagnetic interference emission intensity exceeding the electromagnetic compatibility standard, or when the system cannot work normally due to electromagnetic interference between circuit modules, we must solve the electromagnetic interference problem. To solve the electromagnetic interference problem, we must first be able to "see" the electromagnetic interference and understand the magnitude and source of the electromagnetic interference. This article will introduce methods for measuring electromagnetic interference and determining the source of interference.  When it comes to measuring electrical signals, the first thing an electrical engineer might think of is an oscilloscope. An oscilloscope is an instrument that displays the law of voltage amplitude over time. It is equivalent to the eyes of an electrical engineer, allowing you to see the changes in current and voltage in the line, and thus maste...

When it comes to measuring electrical signals, the first thing an electrical engineer might think of is an oscilloscope. An oscilloscope is an instrument that displays the law of voltage amplitude over time. It is equivalent to the eyes of an electrical engineer, allowing you to see the changes in current and voltage in the line, and thus master the working state of the circuit. But oscilloscopes are not an ideal tool for electromagnetic interference measurement and diagnosis.  A more suitable instrument for measuring electromagnetic interference is a  Spectrum Analyzers . A spectrum analyzer is an instrument that displays the law of voltage amplitude as a function of frequency. The waveform displayed is called the spectrum. The spectrum analyzer overcomes the shortcomings of the oscilloscope in measuring electromagnetic interference, and it can accurately measure the interference intensity at each frequency. The oscilloscope is not an ideal tool for electromagnetic int...

A  Spectrum Analyzer  is an instrument that studies the spectral structure of an electrical signal. It is used to measure signal distortion, modulation, spectral purity, frequency stability, and intermodulation distortion. It can be used to measure certain circuits such as amplifiers and filters. The parameter is a versatile electronic measuring instrument. It can also be called a frequency domain oscilloscope, a tracking oscilloscope, an analytical oscilloscope, a harmonic analyzer, a frequency characteristic analyzer or a Fourier analyzer. Modern spectrum analyzers can display analysis results in an analog or digital manner, and can analyze electrical signals in all radio frequency bands from very low frequency to sub-millimeter band below 1 Hz.   The most commonly used signal test instrument in the laboratory and workshop is the electronic oscilloscope. Human thinking is sensitive to the concept of time, and it is associated with time-domain events every momen...

The   Fast High Quality Function Generators   is a signal generating device that can generate certain periodic time function waveforms (sine waves, square waves, triangle waves, sawtooth waves, pulse waves, etc.), and the frequency range can be from a few microhertz to several Ten megahertz. In addition to testing for communications, instrumentation and automatic control systems, it is also widely used in other non-electrical measurement fields. The use of Fast High Quality Function Generators is as follows: A. Connect the function signal generator to AC 220V, 50Hz power supply, press the power switch, the indicator light is on. B. Press the desired function switch for the desired waveform. C. When the pulse wave needs to be output, pull out the duty adjustment switch to adjust the duty cycle to obtain a stable and clear waveform. At this time, the frequency is 1/10 of the original, and the duty cycle switch knob is pressed when the sine and triangle are in the state...

Frequency Characteristic Analyzer , commonly known as frequency sweepers, are used to measure the frequency characteristics of networks (circuits), such as measurement filters, amplifiers, high-frequency tuners, duplexers, antennas, etc., and are often used for these electronic devices. Or network testing, is also one of the commonly used electronic measuring instruments in the laboratory. The frequency sweeper first generates a sawtooth wave with a frequency of 50 Hz. This sawtooth wave is used to control the frequency of a high frequency sine wave oscillator while controlling the horizontal direction of the electron beam of the oscilloscope. The process forms a sweep signal and forms a zero-level DC during the reverse phase. Therefore, the sweep signal output by the sweeper is intermittent, because the instantaneous point of the sweep sawtooth wave corresponds to the geometric position of the electron beam in the horizontal direction of the display screen, and the instantane...

The main function of the  Spectrum Analyzers System  is to display the spectral characteristics of the input signal in the frequency domain. There are two types of spectrum analyzers depending on the signal processing method; Real-Time Spectrum Analyzer from the  Spectrum Analyzers Supplier  and Sweep-Tuned Spectrum Analyzer. The function of the real-time frequency analyzer is the same. The signal amplitude of the frequency domain is displayed instantaneously. The working principle is that the spectrum analyzer from the  Spectrum Analyzers Manufacturer  has corresponding filters and detectors for different frequency signals, and then transmits the signals to the CRT or liquid crystal via the synchronous multiplex scanner. The display on the display instrument has the advantage of displaying the transient response of periodic random waves. The disadvantage is that the price is limited and the performance is limited by the bandwidth range. The number ...

If you have used an oscilloscope, then you must have heard of the three major oscilloscope indicators: bandwidth, memory depth, sampling rate, when we choose a suitable oscilloscope, these three indicators are often our primary consideration. In fact, from the perspective of principle, the arbitrary waveform generator such as  3GHz Signal Generator  is the inverse process of the oscilloscope. Does the arbitrary waveform generator also have so-called three major indicators? The answer is yes, in the context of arbitrary waveform generators such as  Synthesized Signal Generator , there are also concepts of bandwidth, sample rate and memory depth. (1) Bandwidth The bandwidth of an arbitrary waveform generator can be defined as the frequency of the largest sine wave that can be output. (2) sampling rate The sampling rate of an arbitrary waveform generator is usually expressed in megasamples per second or gigasamples. (3) Storage depth Memory depth is the number...