CMIITID is embodied in radio transmitting equipment, including mobile phones (with Wifi or Bluetooth function), Bluetooth headsets, wireless routers, wireless network cards and other wireless products. Generally speaking, only radio transmitting equipment with the model approval code of radio transmitting equipment in China is a radio transmitting equipment that can be sold and used in China.
A radio transmitter refers to a device that uses an antenna to send radio waves. The radio transmitter generates alternating current which acts on the antenna. The antenna generates radio waves and sends them into space. In addition to the application in radio broadcasting, radio transmitters are also widely used in various devices that communicate by radio. Common applications include mobile phones, wireless local area networks, Bluetooth, wireless walkie-talkies, etc. Radio transmitter usually only refers to the equipment used to transmit radio waves in wireless communication or radio positioning system. Broadly speaking, radio wave generators, such as devices that generate radio in microwave ovens or induction cookers, are generally not called radio transmitters, although their working principles are similar.
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