However, 100mW is the upper limit of 2.4G power in my country. The source of this standard is as follows: State restrictions on the transmit power of 2.4GHz wireless devices and related regulations
The antenna gain of a home wireless router is usually 7dBi or less, most of which are 5dBi, which is most conducive to indoor coverage. As can be seen from the above figure, the power value is less than or equal to 100mW.
And 5G is not this limit value, the upper limit is 200mW, the standard comes from: [The Ministry of Industry and Information Technology issued a notice on the frequency use of wireless access systems in the 5150-5350 MHz frequency band]
5150-5350MHz refers to 5G channels 36-64, which specify a maximum power of 200mW.
So what are the specifications for high-frequency channels above 149?
The 5G channel corresponding to 5725-5850MHz is the channel above 149, and the maximum power is less than or equal to 500mW, which is 27dBm.
To sum up, the Chinese standard is that 2.4G cannot exceed 100mW, and 5G cannot exceed 500mW. In the past