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Try the below script in the AT Command Tester tool
//Script: at!dawstxcw.at //This AT command is used to set the waveform used by the transmitter (WCDMA only) //in the Sierra Wireless modems in the Factory Test Mode. //Enter the password AT!ENTERCND="1234" //Put the modem in to factory modem AT!DAFTMACT WAIT=2 //Set the radio for WCDMA 850 band AT!DASBAND=22 WAIT=2 //Set the channel to 4132 AT!DASCHAN=4132 WAIT=2 //Set he waveform to WCDMA AT!DAWSTXCW=0 WAIT=2 //Carrier wave (no modulating signal applied) AT!DAWSTXCW=1
Output of the above script in the AT Command Tester tool
AT!ENTERCND="1234" OK Password protected commands are unlocked AT!DAFTMACT OK AT!DASBAND=22 22 OK AT!DASCHAN=4132 4132 OK AT!DAWSTXCW=0 0 OK AT!DAWSTXCW=1 1 OK