Transmit Power
This option allows you to select the Transmit Power. You are only allowed to
select a Transmit Power that is up to the maximum allowed by your regulatory
body (FCC in the United States, ETSI in Europe, MKK in Japan). You may wish to
reduce the Transmit Power if you are using a battery-powered device and wish to
conserve battery power. However, this will reduce the range of the radio.