Optionally support AAS and STC. Modulation methods must support BPSK, QPSK, 16QAM and 64QAM, and optionally support 256QAM. When the roll-off factor is 0.25 and the modulation mode is 256QAM, the 20MH...

OverviewSFP is the abbreviation of SMALLFORMPLUGGABLE (Small Pluggable), which can be simply understood as an upgraded version of GBIC. SFP modulesfp(3 sheets) The volume is reduced by half compared t...

The end point of the baseline is usually set with a permanent measurement mark to indicate its point. Such a point is called a baseline point. For example, the length baseline verification field is a...

IntroductionWith the popularity and complexity of the network, the reasonable establishment and normal operation of the network have become extremely important, and the normal operation of the network...

Basic informationIncludes: short-wave communication equipment and satellite communication equipment used for long-distance communication or short-distance tactical communication. It is the most import...

BaselineIn triangulation, the basic length on which the initial side length of the triangulation (lock) is estimated is called the baseline. When it is difficult to directly measure the starting edge...

ContentPerformance testing plays an important role in software quality assurance, and it includes a rich variety of test content. The China Software Evaluation Center summarizes the performance test i...

Background introductionTraditional optical microscope (i.e. far-field optical microscope) is the oldest member of the microscope family. It used to be the only way to observe tiny structures. Traditio...

Horizontal originDifferent sea areas have different sea levels. For example, the sea level on the Pacific side of the Panama Canal is 20 cm higher than the sea level on the Atlantic side. Mainland Chi...

System introductionThe ATC system includes four subsystems: automatic train protection (ATP), automatic train driving (ATO), automatic train monitoring (ATS) or centralized dispatch (CTC), and compute...

DefinitionCarrier-to-interference ratio, also known as carrier interference protection ratio, should be expressed as C/I; co-channel interference protection ratio should be expressed as C/Ic; adjacent...

Signal InterpretationSignal is a tool for carrying messages and a carrier of messages. Broadly speaking, it includes optical signals, acoustic signals and electrical signals. For example, the ancient...

Basic informationProduction skillsProduction methodWhen doing financial statements, some tasks are not needed It can also be done by looking at the account book. 1. "Undistributed profit" at the end o...

Performing experienceParticipated in the movie "Congorilla" in 1932. Participating in the movieRelease timeName of the playPlay the roleDirector1932Congorilla --------

CIM-OSA is an open architecture developed by the ESPRIT-AMICE organization composed of 21 companies and universities in the European Community after more than six years of hard work. The CIM-OSA archi...