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CWNP Certified Wireless Network Administrator CWNA-109 · Domain 1: Radio frequency (RF) technologies

Link budgets and EIRP: transmitter power, cable and connector loss, antenna gain

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Last reviewed September 25, 2026 · Leer en español

A link budget is an accounting of every gain and loss between a transmitter and a receiver. It lets you predict whether a link will work before you install it, and it is the basis for checking legal power limits. You will use the RF math from the earlier lesson here, adding and subtracting dB values along the path.

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