Quectel GSM/GPRS Module Series User Manual

GSM/GPRS Module Series
GSM QuecCell AT Commands Manual
GSM_QuecCell_AT_Commands_Manual Confidential / Released 13 / 27
The setting value can be stored in NVRAM automatically. The setting value can take effect when the
module is started next time.
2.1.7. AT+QSCANF Scan ARFCN Receiving Level
This command can scan the specified frequency or a certain band, then show the list of ARFCN and
RxLevel from the strongest signal level to the lowest when CFUN is 0 or 4.
2 Clean a line of forbidden data
3 Clean all forbidden data
4 Read the forbidden data [0]
5 Write the forbidden data [0]
<line> The parameter is line number of a forbidden data when <mode> is 0, 1 or 2. The
parameter is value of data [0] when <mode> is 4 or 5.
<forbidden data> String type in hex format. The detail is:
MCC + MNC + Band
0xff, 0xff, 0xff, 0xff, 0x00 ...
------------------- ---- ----
MCC + MNC Band force to zero
| |
| |
| |
| |
| ----> 0x00 => GSM 850
| 0x01 => GSM 900
| 0x02 => GSM 1800
| 0x03 => GSM 1900
|
-----> 0x00, 0x0f, 0xff => all country
0x73, 0x2f, 0xff => all networks in MCC=732
0x73, 0x20, 0x1f => MCC=732, MNC=01f
Example:
CMCC 850 46000f0000, 46002f0000, 46007f0000
CMCC 900 46000f0100, 46002f0100, 46007f0100
CMCC1800 46000f0200, 46002f00200, 46007f0200
AT+QSCANF Scan ARFCN Receiving Level
Test Command
AT+QSCANF=?
Response
+QSCANF: (list of supported <band>s),(list of supported
<arfcn>s))
NOTES
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Quectel GSM/GPRS Module Series Specifications

General

Technology	GSM / GPRS
GPRS Class	Class 12
Operating Temperature	-40°C to +85°C
Series	GSM/GPRS Module Series
Frequency Bands	850/900/1800/1900MHz
Power Supply	Single power supply
Interfaces	UART
Protocols	TCP/IP, HTTP, FTP, PPP
Certifications	CE, FCC, PTCRB, GCF
Dimensions	Varies by model (e.g., 24mm x 24mm x 3mm)

Summary

About the Document

Document History and Revisions

Details the revision history of the document, including dates and changes made.

1 Introduction to QuecCell

2 GSM QuecCell AT Commands

2.1 Overview of AT Commands

Provides a summary of key AT commands for GSM QuecCell functionality, listing commands and their purposes.

2.1.1 AT+QOPS Scan Base Station Info

Explains the AT+QOPS command for scanning GSM base station information and network details.

2.1.2 AT+QENG Engineering Mode Control

Details the AT+QENG command for enabling/disabling engineering mode and reporting network information.

2.1.3 AT+QLOCKF Lock Base Station

Explains the AT+QLOCKF command to lock a specified base station or ARFCN.

2.1.4 AT+QCHINFO Get Channel Information

Details the AT+QCHINFO command for obtaining detailed network channel information.

2.1.5 AT+QLASTTA Get Time Advance Value

Describes the AT+QLASTTA command to retrieve the last valid Time Advance value.

2.1.6 AT+QFORBIDMNC Forbid Operator

Explains the AT+QFORBIDMNC command to forbid specific operators and radio bands.

2.1.7 AT+QSCANF Scan ARFCN Receiving Level

Details the AT+QSCANF command for scanning ARFCN receiving levels across different bands.

3 Example Usage of AT Commands

3.1 AT+QOPS Command Example

Provides practical examples of using the AT+QOPS command for base station scanning and information retrieval.

3.2 AT+QENG Command Example

Shows example usage scenarios for the AT+QENG command in engineering mode for network monitoring.

3.3 AT+QLOCKF Command Example

Demonstrates examples of how to lock a base station or specific ARFCNs using the AT+QLOCKF command.

3.4 AT+QCHINFO Command Example

Provides example scenarios for retrieving detailed channel information with the AT+QCHINFO command.

3.5 AT+QLASTTA Command Example

Shows examples of obtaining the last valid Time Advance value using the AT+QLASTTA command.

3.6 AT+QFORBIDMNC Command Example

Illustrates examples of forbidding operators and radio bands using the AT+QFORBIDMNC command.

3.7 AT+QSCANF Command Example

Presents examples of scanning ARFCN receiving levels across different bands with AT+QSCANF.

4 Appendix A: Reference Documents

5 Appendix B: Error Code Summary