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Radio Transmit Power
This note contains the following sections:
•
Understanding Radio Transmit Power, page 1
•
Configuring Radio Transmit Power, page 2
•
Configuring Client Radio Transmit Power, page 3
•
Maximum Power Levels and Antenna Gains, page 4
•
Configuring Radio Data Rates, page 5
Understanding Radio Transmit Power
Radio cell size is controlled by the transmitted power level of the wireless device and controls
interference between cells. The maximum transmit power is limited according to regulatory region.
An improper combination of transmit power level and antenna gain can result in equivalent isotropic
radiated power (EIRP) that exceeds the amount allowed per regulatory domain.
In some situations, the channel selection or country code affects the transmit power level. See the
“Radio
Channel Frequencies”
document for additional information.
For general information on power values, see RF Power Values (Document ID 23231) at:
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00800e90fe.shtml
For general information on channel selection and transmit power, see the FCC Regulations Update For
2004 white paper at:
http://www.cisco.com/en/US/prod/collateral/wireless/ps5679/ps5861/prod_white_paper0900aecd801c
4a88_ps4555_Products_White_Paper.html