Abstract: Electronic animal containment systems and related containment methods. The systems include a boundary wire bounding a containment area, a transmitter electrically coupled with the boundary wire, and a receiver configured to be carried by an animal. The transmitter generates a containment signal current in said boundary wire that produces a containment signal in the magnetic field emitted from the boundary wire. The receiver is configured to detect the containment signal, and selectively deliver at least one correction stimulus to the animal based in part on an extrapolated position of the receiver. The receiver extrapolates the position of the receiver in relation to the containment area by determining a digital received signal strength indication (RSSI) of the received signal strength of the containment signal and its relation to a plurality of user defined RSSI thresholds.