This application test aims at the test of non nominal 50 Ω cable, including coaxial, twisted pair, differential high-speed data line, including impedance parameters, s parameters (insertion loss, standing wave, Smith diagram, etc.), and can also draw eye diagram. According to the performance of the cable, such as frequency range, length, difference or not, time-domain […]
Articles Tagged: test
How to test the signal integrity and how to realize it
There are many means of signal integrity test, some of the main means are waveform test, eye diagram test, Jitter Test and so on. At present, the widely used signal integrity test means should be waveform test, that is, using oscilloscope to test waveform amplitude, edge and burr. Through testing waveform parameters, we can see […]
China’s 200 fixed wing UAVs launched simultaneously, breaking the world record
In recent years, China’s application technology in the field of UAV has become mature, both military and civil have made a major breakthrough. As early as two years ago, at the Guangzhou fortune forum evening, China used 1180 UAVs for a lighting show about eight minutes, which shocked the whole audience. Some time ago, 3051 […]
Tokyo uses mobile network remote control UAV to verify the effectiveness of UAV assisted rescue
Prodrone, a Japanese company that has experimented with long-distance UAV flight for many times, conducted a UAV test in Tokyo earlier. It transported rescue materials to the peak valley area of the town of Omo to simulate how UAVs can assist rescue in areas where roads are blocked after natural disasters. Test UAV is a […]
Using four analysis methods of spectrum analyzer to observe signal quality
Wireless communication often needs to use spectrum analyzer to demodulate the signal and analyze the signal quality. There are usually four methods for analysis: IQ constellation diagram, IQ eye diagram, symbol table and bit error rate table. Today we will introduce how these four analysis methods can help us observe the signal quality. 1、 IQ […]
Functions of R & s fpc1500 spectrum analyzer and solutions for testing and measurement
Rod and Schwartz have enriched the R & S FPC spectrum analyzer series and added R & s fpc1500. This compact instrument combines spectrum analyzer, single port vector network analyzer and CW signal source. It can be used for education, service, maintenance and professional enthusiasts. This is the first economic spectrum analyzer on the market […]
Simulation test and elimination method analysis of integer boundary spurious
By Robert Brennan, ADI Phase locked loop (PLL) and voltage controlled oscillator (VCO) output RF signal of specific frequency, which should be the only signal in the output ideally. But in fact, there are interference spurious signal and phase noise in the output. This paper discusses the simulation and elimination of one of the most […]
Us UAV space carrier system and UAV cluster attack technology have made important progress
The U.S. military is developing a UAV space carrier to carry out unmanned cluster attacks on major opponents. UAV plays a brilliant role in the Naka battlefield, which has attracted the world’s attention. In the field of UAVs, the United States is the leader. At present, UAVs in the United States are mainly concentrated in […]
What is the four wire test method of jishili multimeter and what is its main application function
Jishili source meter and multimeter are always favored by customers. In the process of using, people often ask: what is the four line test method? Today, I’d like to share with you what is the four line test method. The four wire test method is the best one to eliminate the lead resistance error (or […]
Measurement of high power laser liv by using PL series pulse current source
PL series pulse current source realizes the industry leading high current / high speed pulse generator, which can provide 30A pulse current output with a minimum pulse width of 100ns in 10V voltage range. It is perfect for vertical cavity surface emitting laser (VCSEL) lidar and face recognition, LED lighting and display, semiconductor device characteristics, […]