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Bad RSSI on PLS62T-W USB | Thales IoT Developer Community

November 2, 2022 - 3:55pm, 34 views

Hello,

I hove some troubles with PLS62T-W USB product.

I have very bad RSSI even if I am very close to the repeater antenna. Using the PLS62T-W USB I have -103 dBm and, with the same antenna and near the repeater antenna, using a modem from another manufacturer (Teltonika) I have -59 dBm.

Commands:

GEMALTO -> -103 dBm

   microcom /dev/ttyACM1 -s 115200

    OK

    ^SMONI: 4G,1350,3,20,20,FDD,222,01,4910,C3E3C29,70,--,-103,-10.0,CONN
    
    AT+CGMR (FW)
    REVISION 02.010

TELTONIKA -> 27 converted in -59 dBm

  microcom /dev/ttyUSB2 -s 115200

    OK

    +QNWINFO: "FDD LTE","22201","LTE BAND 3",1350
    
    +CSQ: 27,99

Same RAT (4G), same band, same antenna, same place, but different modem.

Any idea about this almost 45dB difference?