RSSI value blocked at -128

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AyEL_4169851
Level 1
Level 1
First like given

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.

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1 Reply
VinayakS_26
Moderator
Moderator
Moderator
100 replies posted 50 replies posted 25 replies posted

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