Mikrotik v.7 Using cell lock on LHG LTE18

 There is a way to do a cell lock on EG18-EA modem, it worked for me on LHG LTE18 kit.

All information below is taken from this thread on the Quectel forum.

You will need to figure out PHY-CELLID (ID of the cell itself) and EARFCN (frequency that will be locked as primary band). You can get a list of cells around you and corresponding frequencies using cell monitor via web UI or console with:

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interface/lte/cell-monitor lte1

You will get something like this:

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PHY-CELLID  BAND  EARFCN  RSRP     RSRQ   RSSI    AGE
       247  B7      2850  -99dBm   -9dB   -68dBm  1s 
        99  B7      2850  -104dBm  -15dB  -79dBm  1s 
       258  B7      2850  -107dBm  -16dB  -83dBm  1s 
        69  B7      2850  -111dBm  -20dB  -79dBm  1s 
       362  B7      2850  -115dBm  -20dB  -85dBm  1s

Next, use the following command to set a cell lock:

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interface/lte/at-chat lte1 input="at+qnwlock=\"common/4g\",1,247,2850"

where 247 is PHY-CELLID and 2850 is EARFCN.

Apparently you can set up to 20 cell locks and your modem will lock on the one with the best signal:

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interface/lte/at-chat lte1 input="at+qnwlock=\"common/4g\",<NUMBER OF CELL LOCKS>,<EARFCN 1>,<PHY-CELLID 1>,<EARFCN 2>,<PHY-CELLID 2>, ..."

If you did something incorrectly or currently locked cell is not available anymore, use this to disable cell lock:

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interface/lte/at-chat lte1 input="at+qnwlock=\"common/4g\",0"

If you want to see currently set cell lock, use the following command:

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interface/lte/at-chat lte1 input="at+qnwlock=\"common/4g\""

Unfortunately, similar to R11e-LTE6 modem (LHG LTE6 kit), a cell lock will be reset after device reboot.