ISM Band of Frequencies and Allocation
回答: 【黑五开苞】黑五收到公司送的礼物 由 yy888 于 2019-12-02 11:17
ISM means Industrial, Scientific and Medical frequency band. This is a band of radio and microwave frequencies clustered around 2.4GHz, reserved and designated for industrial, scientific and medical equipment that use RF.
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