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LTE strength

Scheduled Pinned Locked Moved Unsolved General Questions
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  • Aldo Castro FreireA Offline
    Aldo Castro FreireA Offline
    Aldo Castro Freire
    Regular
    wrote on last edited by
    #1

    Is there any advice or method to measure the lte strength that my module is able to receive?

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    • tomT Offline
      tomT Offline
      tom
      admin
      wrote on last edited by
      #2

      You can use a variety of AT commands in order to read / write to the modem. One command that we often use to query signal strength is AT+QENG="servingcell". You can send this command and read the output to the terminal all in a single command using echo -ne "AT+QENG=\"servingcell\"\r" | busybox microcom -t 1000 /dev/ttyUSB2.

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      • Aldo Castro FreireA Offline
        Aldo Castro FreireA Offline
        Aldo Castro Freire
        Regular
        wrote on last edited by
        #3

        thank you I will try that

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        • Aldo Castro FreireA Offline
          Aldo Castro FreireA Offline
          Aldo Castro Freire
          Regular
          wrote on last edited by
          #4

          @tom said in LTE strength:

          busybox microcom -t 1000 /dev/ttyUSB2.

          Hi just one question what does this mean ? : busybox microcom -t 1000 /dev/ttyUSB2

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          • tomT Offline
            tomT Offline
            tom
            admin
            wrote on last edited by
            #5

            @Aldo-Castro-Freire microcom is a program that can be used to talk to devices over a serial port (/dev/ttyUSB2). It handles sending AT commands to the modem cleanly.

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            • Aldo Castro FreireA Offline
              Aldo Castro FreireA Offline
              Aldo Castro Freire
              Regular
              wrote on last edited by
              #6

              I also have another modem that is 5g that I would like to connect to the microusb? what device would that be ? it would be ttyUSB1 ?

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              • tomT Offline
                tomT Offline
                tom
                admin
                wrote on last edited by
                #7

                What 5g modem are you attempting to use? The drivers would need to be integrated into the kernel in order for it to be recognized.

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                • Aldo Castro FreireA Offline
                  Aldo Castro FreireA Offline
                  Aldo Castro Freire
                  Regular
                  wrote on last edited by
                  #8

                  I am getting "ERROR" when running this command

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                  • tomT Offline
                    tomT Offline
                    tom
                    admin
                    wrote on last edited by
                    #9

                    Check here for Sierra's AT command documentation: https://source.sierrawireless.com/resources/airprime/software/airprime_wpx5xx_wp76xx_wp77xx_at_command_reference/

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                    • Aldo Castro FreireA Offline
                      Aldo Castro FreireA Offline
                      Aldo Castro Freire
                      Regular
                      wrote on last edited by
                      #10

                      I am not sure but none of the commands are running.
                      Also, it does not have the command AT+QENG for me to check out

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                      • tomT Offline
                        tomT Offline
                        tom
                        admin
                        wrote on last edited by
                        #11

                        Can you show an example output of what you are seeing? Also, which modem are you using?

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