0 Replies Latest reply on Jul 13, 2017 8:48 AM by patrick.keroulas_2522756

    tx power control with 'wl' tool

    patrick.keroulas_2522756

      Hello,

       

      Looking at 'wl' tool manual, there are several ways to control tx output power:

      wl phy_txpwrindex (0-127)

      wl pwr_percent (in %)

      wl txpwr1 (dBm, Wm)

      The difference between these functions seems to be more than the units. They look unrelated, i.e. modifying the power in percent has no effect on the power readings in dBm. The recommended commands sequence for RF measurements shows one function for closed loop and another one for open loop:

      ...

      ----[for closed loop power control]----

      > wl phy_txpwrctrl 1

      > wl txpwr1 -1 --> -1 = default target power; or

      > wl txpwr1 -o -d [X] --> X = user defined Tx power, in dBm

      ----[for open loop power control]----

      > wl phy_txpwrctrl 0

      > wl phy_txpwrindex [X] --> X = Tx power index from range 0-127

      ...

      I may miss some knowledge in RF. Can anyone explain the actual role of these commands?

       

      Thank you,

       

      Patrick