Understanding License Exemptions for Low-Power Walkie-Talkies

The threshold of 0.5 watts as the pivotal value stems from the context of amateur radio communications in China. It is commonly held that radio equipment operating below this power level exhibits limited output power and range, posing minimal risk of interference to other radio devices or broadcast systems. Consequently, such low-power devices, including certain small radio transceivers and children's walkie-talkies, are typically exempted from formal approval and authorization processes.

In the United States, specific license-exempt radios fall under categories like the Family Radio Service (FRS) and General Mobile Radio Service (GMRS). These radios operate at lower power levels and are confined to predefined frequency bands. The Federal Communications Commission (FCC) regulates these services, stipulating that FRS devices must not exceed 0.5 watts in power, while GMRS devices can transmit at up to 5 watts, albeit requiring FCC licensing for operation. Moreover, Citizens Band (CB) radios operate without a license, yet they are subject to restrictions regarding frequency usage and power output.

By adhering to these regulations, authorities aim to balance the need for accessible communication tools with ensuring minimal interference and orderly use of radio spectrum resources.

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