获取多个基站信息，需要将其模块注网上不同的频段
以下使用AT+QCFG="band" 配置频段
- 验证一
AT+QENG="SERVINGCELL" 获取注网信息解析说明
在没锁频之前查询注网信息
[2024-02-23_11:22:41:108]AT+CPIN?
[2024-02-23_11:22:41:108]+CPIN: READY[2024-02-23_11:22:41:108]OK
[2024-02-23_11:22:42:550]AT+QENG="SERVINGCELL"
[2024-02-23_11:22:42:550]+QENG: "servingcell","NOCONN","LTE","FDD",460,11,613D204,180,1650,3,5,5,253E,-100,-10,-69,1,23[2024-02-23_11:22:42:550]OK解析：PCI:180 EARFCN:1650 BAND:B3 TAC:253E
锁BAND1
[2024-02-23_11:23:21:360]AT+QCFG="band",00,1
[2024-02-23_11:23:21:920]OK
[2024-02-23_11:23:38:543]AT+QENG="SERVINGCELL"
[2024-02-23_11:23:38:543]+QENG: "servingcell","NOCONN","LTE","FDD",460,11,613D209,180,100,1,5,5,253E,-100,-9,-71,12,23[2024-02-23_11:23:38:543]OK解析：PCI:180 EARFCN:100 BAND:B1 TAC:253E
- 锁BAND3
[2024-02-23_11:24:10:503]AT+QCFG="band",00,4
[2024-02-23_11:24:10:941]OK
[2024-02-23_11:24:12:884]AT+QENG="SERVINGCELL"
[2024-02-23_11:24:12:884]+QENG: "servingcell","NOCONN","LTE","FDD",460,11,613CC06,147,1506,3,3,3,253E,-98,-8,-73,7,-[2024-02-23_11:24:12:884]OK解析：PCI:147 EARFCN:1506 BAND:B3 TAC:253E
- 锁BAND40
[2024-02-23_11:26:12:376]AT+QCFG="band",00,8000000000
[2024-02-23_11:26:12:376]ERROR解析：ERROR，原因是模块不支持B40频段
- 锁BAND41
[2024-02-23_11:27:00:064]AT+QCFG="band",00,10000000000
[2024-02-23_11:27:00:519]OK
[2024-02-23_11:27:04:544]AT+QENG="SERVINGCELL"
[2024-02-23_11:27:04:544]+QENG: "servingcell","LIMSRV","LTE","TDD",460,00,D23CD43,431,40936,41,5,5,2495,-95,-7,-68,20,29[2024-02-23_11:27:04:544]OK解析：LIMSRV 未注网，原因是电信卡不支持B41频段
