Thanks for viewing. We have done distance measurements using RSSI amongst 2 or more devices. The results were not satisfactory to us. We have many devices in office that support RSSI.
The description of this job is very vague. The exact distance is from where to where? What accuracy is desired? What is make/model of tracking device(s)? Is RSSI of RFID , Wi-fi, or what? Many more hidden items which may cause misunderstandings between us. The scope needs to be defined so we can revert properly.