1 Reply Latest reply on Jun 10, 2019 3:13 AM by VinayakS_26

    RSSI value blocked at -128

    AyEL_4169851

      Hello,

       

      Firstly, this is my setup

       

       

      #############                                                                     ############

      #                     #                    RF cables                                   #                    #

      #      DUT1      #===================================#       DUT2    #

      #                     #                            ||                                          #                    #

      #############                           ||                                         ############

                                                           ||

                                                           ||

                                                           ||

                                           ###################

                                           #                                  #

                                           # Spectrum analyser   #

                                           #                                  #

                                           ###################

       

      I putted  DUT1 in tx mode in channel 7 and txchain 3 ( tx in 2 antennas), and i putted DUT2 in rx mode in channel 7.

      when i put the DUT2 in rxchain 1 ( Antenna 1) and check the value of wl pkteng_stats to get the rssi : i get the value of -14 dbm

      and when  put the DUT2 in rxchain 2 (Antenna 2), i have a fixed value of rssi : -128dbm

      when i put the DUT2 in rxchain 3 (Antenna 1 and 2) i have -14 in rssi value.

       

      I want to know why the antenna 2 is blocked at -128dbm ?

      is there any other commands to get the rssi value by antenna ?

      i already tested the command : wl phy_rssi_ant and the retuen was :

      rssi[0] 0  rssi[1] 0  rssi[2] 0  rssi[3] 0

      the command : wl rssi return 0 also.

       

      Best regards.

        • 1. Re: RSSI value blocked at -128
          VinayakS_26

          Hi,

           

          Could you check and  see if you are using the following sequence while monitoring the packet stats.

          wl mpc 0
          wl up
          wl phy_watchdog 0
          wl pkteng_start [addr] [tx|rxwithack|rx] [ipg] [length] [framecnt]
          wl pkteng_stop [tx|rx]
          wl pkteng_stats
          

           

          Also could you mention the chip that you are using here as the DUTs. Are they 43012s?

           

          Regards

          VinayakS_26

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