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I want to track location with GSM tower triangulation.

I searched and I found this API for GSM positioning.

{
  "gsm": [{
    "mcc": 262,
    "mnc": 1,
    "lac": 5126,
    "cid": 16504,
    "nmr": [
      { "bsic": "6", "bcch": "82" },
      { "bsic": "7", "bcch": "85" },
      { "bsic": "12", "bcch": "93" },
      { "bsic": "13", "bcch": "88" },
      { "bsic": "19", "bcch": "88" }
    ]
  }]
}

It requires the shown GSM information.

I don't understand what "nmr" is.

How can I find "nmr" information of GSM?

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    \$\begingroup\$ why can you not search the web? the answers are all there \$\endgroup\$ – Tony Stewart EE75 Dec 28 '20 at 1:39
  • \$\begingroup\$ I searched but I don't understand exactly what is nmr. \$\endgroup\$ – Sun Dec 28 '20 at 10:41
  • \$\begingroup\$ @Sun: In the context of GSM, "NMR" stands for "Network Measurement Report." Despite having written (professionally) several programs that use GSM modems, I do not recall having seen the AT commands needed to get the NMR values. I'm also not having any success looking them up. \$\endgroup\$ – JRE Dec 28 '20 at 11:54
  • \$\begingroup\$ Thank yoyu @JRE \$\endgroup\$ – Sun Dec 28 '20 at 12:47
  • \$\begingroup\$ As far as I can tell, the NMR is in the "Cell Broadcast Messages" that you can request using the "AT+CSCB" command. \$\endgroup\$ – JRE Dec 28 '20 at 13:38

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