Abstract: A device for limiting an extent of a wireless network service is provided. The device includes a directional antenna disposed at or near an intended boundary of the wireless network service, and a signal generator configured to drive the directional antenna to transmit a jamming signal in a direction substantially parallel to or away from a closest portion of the intended boundary of the wireless network service. The jamming signal degrades the quality of a wireless network signal, and has a signal strength equal to or larger than that of the wireless network signal at a preselected location at or near the intended boundary of the wireless network service.

Abstract: A device for limiting an extent of a wireless network service is provided. The device includes a directional antenna disposed at or near an intended boundary of the wireless network service, and a signal generator configured to drive the directional antenna to transmit a jamming signal in a direction substantially parallel to or away from a closest portion of the intended boundary of the wireless network service. The jamming signal degrades the quality of a wireless network signal, and has a signal strength equal to or larger than that of the wireless network signal at a preselected location at or near the intended boundary of the wireless network service.

Abstract: A water rationing device that controls and manages municipal household water usage including a signal conveying wired pipe having electrically conductive wires, a flow sensor coupled to the signal conveying wired pipe, a flow gauge, a first and a second control valve coupled to the signal conveying wired pipe, a first and a second pipe connector having push connectors, a converter connected to the electrically conductive wires via the push connectors, a power supply connected to the converter, and a first and a second transceiver connected to a controller that receives the water flow signal from the water flow gauge, sends and receives control signals to the first control valve and the second control valve, and sends and receives signals from the first and second transceiver.