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Try the below script in the AT Command Tester tool
////Script: at!dawstxpwr.at //This AT command is used to set the Tx power in WCDMA mode //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 the Tx power to 15 dBm //The power range is -57 to 28 AT!DAWSTXPWR=15 WAIT=2 //Apply temparature compensation AT!DAWSTXPWR=15,1
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!DAWSTXPWR=15 0,0 OK AT!DAWSTXPWR=15,1 0,1 OK