![]() ![]() Fixed, point-to-point operations exclude the use of point-to-multipoint systems, omnidirectional applications, and multiple collocated transmitters transmitting the same information. For fixed point-to-point transmitters that employ a diretional antenna gain greater than 23 dBi, a 1 dB reduction in maximum conducted output power spectral density is required for each 1 dB of antenna gain in excess of 23 dBi. ![]() Fixed point-to-point U-NII devices may employ antennas with directional gain up to 23 dBi without any corresponding reduction in the maximum conducted output power or maximum power spectral density. *3 The maximum power spectral density shall not exceed 17 dBm in any 1 megahertz band. *2 Equivalent Isotropically Radiated Power (EIRP) is terminology for the total RF power radiated by the antenna. If transmitting antennas of directional gain greater than 6 dBi are used, both the maximum conducted output power and the maximum power spectral density shall be reduced by the amount of dB that the directional gain of the antenna exceeds 6 dBi. In addition, the maximum power spectral density shall not exceed 17 dBm in any 1 megahertz band. *1 Provided the maximum antenna gain does not exceed 6 dBi. *3 Equivalent Isotropically Radiated Power (EIRP) is terminology for the total RF power radiated by the antenna.ΔΆ00mW 23dBm or 11 dBm + 10 log B, where B is the 26 dB emission bandwidth in megahertz *5 *2 The FCC ruling states that for every 1dBi the Intentional Radiator is reduced below the initial 30dBm that the antenna gain may be increased from the initial 6dBi by 3dB. *1 The FCC terminology of Intentional Radiator is the transmitter power of the wireless equipment, such as a wireless access point, router or bridge. Maximum Power from Intentional Radiator *1 FCC 2.4 GHz BAND RULES (POINT-TO-MULTIPOINT) ![]()
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