An animal containment/repellant system comprising: a base unit having a housing; a signal generating module disposed within the housing of said base unit, said signal generating module generates a first signal and a second signal; an internal antenna disposed within the housing of said base unit, said internal antenna in electrical communication with said signal generating module, said signal generating module drives the first signal into said internal antenna such that the first signal radiates from said internal antenna to define a first animal containment/repellant area; an external antenna in electrical communication with said signal generating module, said external antenna extending from the housing of said base unit such that a substantial portion of said external antenna is disposed outside the housing of said base unit, said signal generating module drives the second signal into said external antenna such that the second signal radiates from said external antenna to define a second animal containment/repellant area; and a rover unit adapted to be carried by an animal, said rover unit including a receiver configured to receive first and second radiated signals, said rover unit including a stimulus delivery module to deliver a stimulus to the animal when activated, said rover unit including a processor characterized in that said processor is configured to analyze the first and second radiated signals to determine if the first and second radiated signals satisfy first and second predetermined thresholds, respectively, and to activate the stimulus delivery module when signal strength of the first radiated signal does not satisfy the first predetermined threshold and signal strength of the second radiated signal satisfies the second predetermined threshold, and to not activate the stimulus delivery module when signal strength of the first radiated signal satisfies the first predetermined threshold regardless of signal strength of the second radiated signal. a base unit having a housing; a signal generating module disposed within the housing of said base unit, said signal generating module generates a first signal and a second signal; an internal antenna disposed within the housing of said base unit, said internal antenna in electrical communication with said signal generating module, said signal generating module drives the first signal into said internal antenna such that the first signal radiates from said internal antenna to define a first animal containment/repellant area; an external antenna in electrical communication with said signal generating module, said external antenna extending from the housing of said base unit such that a substantial portion of said external antenna is disposed outside the housing of said base unit, said signal generating module drives the second signal into said external antenna such that the second signal radiates from said external antenna to define a second animal containment/repellant area; and a rover unit adapted to be carried by an animal, said rover unit including a receiver configured to receive first and second radiated signals, said rover unit including a stimulus delivery module to deliver a stimulus to the animal when activated, said rover unit including a processor characterized in that said processor is configured to analyze the first and second radiated signals to determine if the first and second radiated signals satisfy first and second predetermined thresholds, respectively, and to activate the stimulus delivery module when signal strength of the first radiated signal does not satisfy the first predetermined threshold and signal strength of the second radiated signal satisfies the second predetermined threshold, and to not activate the stimulus delivery module when signal strength of the first radiated signal satisfies the first predetermined threshold regardless of signal strength of the second radiated signal. <EOS>