At act 1722, the system performing process 1700 may determine the distance between the receive-only interrogator and the target device using the second mixed RF signal obtained at act 1716. This may be done in any suitable way including in any of the ways described above with reference to act 1720.
Finally, at act 1724, the system performing process 1700 may determine a location of the target device using the distance between the master interrogator and the target device determined at act 1720 and the distance between the receive-only interrogator and the target device determined at act 1722. This may be done in any suitable way and, for example, using least-squares techniques. The processing of act 1724 may be performed by the master interrogator (in embodiments where the master interrogator contains a processor), by an external processor external to the master interrogator, or any suitable combination thereof.