This will be achieved through a novel application of a typically detrimental phenomena known as multipath propagation. This is a common occurrence in which a broadcasted signal is received more than once, typically due to the reflection of the carrier waves off of structures in the environment. Multipath propagation is currently accounted for through software and hardware measures in most devices, however, the principles used in this mitigation can be used to instead receive signals that have been bounced off of the environment. This continuous reflection would make tracking the original transmission location virtually impossible with most listening systems.

Multipath propagation (MP) is a very common occurrence in wireless communication. This fact results in a wealth of technology that is meant to account for this typically destructive phenomenon and all of the accompanying research and documentation. As such, this technology will be used instead to receive signals that are intentionally directed in such a way as to cause MP. The transmitting unit will broadcast a signal in a user-defined direction, causing the signal to bounce off of the surrounding environment. This reflected signal will then propagate outwards, effectively under the guise of noise. The receiving unit will then receive effectively multiple instances of the same signal, confirming the friendly nature of the transmitter, referencing the receiving unit's location through GPS, then again undergoing the same process to transmit a "friendly" tag back to the original transmitter, along with the location of the unit.

This novel local-area communication system is expected to result in the direct lowering of friendly fire casualties through creating what is effectively a system that allows users to find one another without ever having to establish any sort of physical human connection, whether it be through sight or sound, as with current methods. It will also drastically lower the chances of users being tracked or even located to begin with, as they will not be forced to give up their location through callouts or visual confirmation, and the signals emitted will be incredibly difficult to track.