Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 197 / 231
Parameter
This parameter will not be saved.
12.10. AT+QMIC Set Uplink Gains of MIC
The command is used to set the uplink gains of microphone.
Parameter
Reference
Quectel
<st_gain> Numeric type. Indicates the configured side tone gain in current mode
Range: 0-65535. Default value might be different in different audio modes
AT+QMIC Set Uplink Gains of MIC
Test Command
AT+QMIC=?
Response
+QMIC: (0-65535),(0-65535)
OK
Read Command
AT+QMIC?
Response
+QMIC: <txgain>,<txdgain>
OK
Write Command
AT+QMIC=<txgain>[,<txdgain>]
Response
OK
ERROR
Maximum Response Time
300ms
<txgain> Numeric type. Indicates uplink codec gain and the range is 0-65535. The default value might
be different in different audio modes.
<txdgain> Numeric type. Indicates uplink digital gain and the range is 0-65535. The default value might
be different in different audio modes.
NOTE

Quectel EC25 Specifications

General

Category	LTE Module
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
GSM	850/900/1800/1900 MHz
Data rates	LTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Form Factor	LCC
Storage Temperature	-45°C to +90°C
SIM Interface	1.8V/3.0V
Antenna Interface	Main, Diversity, GNSS
LTE FDD	B1/B3/B5/B7/B8/B20
Interfaces	USB 2.0, UART, PCM, GPIO
Operating Voltage	3.3V - 4.3V
Protocols	TCP/IP, UDP, FTP, HTTP, HTTPS
Certifications	CE, FCC, PTCRB, GCF, RCM, IC