rate - Set the Data Transmit Rate

Set the bit rate for transmitted packets. The value is specified in bits per second and the values can be suffixed by k, M, or G for kilobits, megabits, and gigabits respectively. The value auto is also valid and causes the device to use the bit rate selected by the rate control module. It's also possible to supply the bit rate followed by auto, in which case the driver will automatically select from the bit rates not exceeding that rate.

Example:The following commands sets the maximum bit rate to 36Mbs. Thus, the driver will automatically select the best rate less than or equal to 36Mbs.

myprompt# iwconfig ath0 rate 36M auto