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Use of the radio spectrum is regulated (e.g. by the FCC in the US). Different things are allowed or not, depending on the frequency. 2.4GHz is one of the few fr
by chriswarbo 9y ago
Use of the radio spectrum is regulated (e.g. by the FCC in the US). Different things are allowed or not, depending on the frequency. 2.4GHz is one of the few frequencies which are allowed for consumer use without much restriction; hence that's what everything uses.
- anotherhue 9y agoThere's a fair amount of restriction, the difference being if you agree to operate within the restrictions you don't need a license.