Bad RSSI on PLS62T-W USB | Thales IoT Developer Community
November 2, 2022 - 3:55pm, 553 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?
Hello,
It seems that you are not comparing the same parameter. For PLS62T you take RSRP while for the other module RSSI.
In general RSSI can be a correct signal quality indicator only for 2G. In case of 4G you should take into consideration RSRP and RSRQ parameters.
Best regards,
Bartłomiej