CMIIT is the model approval code for radio transmitting equipment. Radio transmitting equipment refers to various equipment that emits radio waves, but this equipment does not include industrial, medical, scientific research equipment, high-voltage power lines, electrified transportation systems, and other electrical devices that can radiate electromagnetic waves. Extended information
Radio transmitting equipment is widely used, including Bluetooth headsets, mobile phones (with wifi or Bluetooth function), wireless routers, wireless network cards and other wireless products that use radio transmitting equipment.
Radio transmitter, referred to as "transmitter", refers to a device that generates and modulates radio frequency current and emits radio waves.
According to the type of electrical signal, radio wave frequency, transmitter power and modulation method, there are many types of telegraph transmitters, telephone transmitters, broadcast transmitters, television transmitters and ultra-short wave FM transmitters. . Radio transmitters used for communication are called "transmitters".