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CWNP Certified Wireless Network Administrator CWNA-109 · Domain 2: WLAN regulations and standards

Regulatory power limits, EIRP rules and why they vary by country

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Last reviewed September 25, 2026 · Leer en español

Every country decides for itself how its radio spectrum is used. That is why a Wi-Fi device can legally use a channel or power level in one country and not in another. As a wireless administrator, you must configure equipment to follow the rules of the country where it operates, usually by setting the correct country code or regulatory domain on the controller or AP.

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