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How much power can I transmit on a 7 dBi omni on 5.8 GHz and still be legal?

April 26, 2017dBi GHz Legal Omni power transmit

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How much power can I transmit on a 7 dBi omni on 5.8 GHz and still be legal?

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The FCC regulations for PtMP allows only 36 dBm (4 watts) EIRP in the UNII-3 band. This is 30 dBm (1 watt) into a 6 dBi antenna. If you use a 7 dBi antenna, you must limit your transmitter (or amplifier) to 29 dBm (7 + 29 = 36 dBm). For a 15 dBi sector antenna, this allows a 21 dBm transmitter (or amplifier). Power is measured at the antenna connector, so subtract any cable loss between the amplifier and the antenna.