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    • By Admin / 25 Sep 22 / 0 Comments

      Basic Technical Principles of MIMO

      Since 802.11n, MIMO technology has been used in this protocol and has significantly improved the wireless transmission rate. Specifically, how to achieve high technology improvement. Now let’s take a closer look at MIMO technology. With the progress of wireless communication technology, mor...
      Basic Technical Principles of MIMO
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    • By Admin / 23 Sep 22 / 0 Comments

      Classification of Switches

      There are many types of switches on the market, but there are also different functional differences, and the main features are different. It can be divided according to the broad sense and scale of application:  1) First of all, in a broad sense, network switches can be divided into two categorie...
      Classification of Switches
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    • By Admin / 22 Sep 22 / 0 Comments

      Direct Sequence Spread Spectrum (DSSS) Communication – Communication Principle

      Principle: The principle of the Direct Sequence Spread Spectrum system is very simple. For example, a string of information to be sent is expanded to a very wide frequency band through PN code. At the receiving end, the information sent is retrieved by correlating the spread spectrum signal with ...
      Direct Sequence Spread Spectrum (DSSS) Communication – Communication Principle
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    • By Admin / 21 Sep 22 / 0 Comments

      Introduction to Error Vector Magnitude (EVM)

      EVM: abbreviation of Error Vector Magnitude, which means error vector amplitude. The digital signal frequency band transmission is to modulate the baseband signal at the sending end, send it to the line for transmission, and then demodulate it at the receiving end to recover the original baseband...
      Introduction to Error Vector Magnitude (EVM)
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    • By Admin / 20 Sep 22 / 0 Comments

      Data Transmission Mode and Working Principle

      Working principle: After any node of the switch receives the data transmission command, it quickly searches the address table stored in the memory to confirm the connection location of the network card with the MAC address and then transmits the data to the node. If the corresponding location is ...
      Data Transmission Mode and Working Principle
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    • By Admin / 19 Sep 22 / 0 Comments

      How To Judge Quality of Optical Modules

      Various third-party optical modules on the market have great advantages in cost compared with the original optical modules, which can effectively solve the problem of the high deployment cost of optical modules. However, some people still worry about the quality of compatible optical modules. HDV...
      How To Judge Quality of Optical Modules
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