A container has a base, sides and a top, the base, sides and top together defining a void within which items can be located in use, an electromagnetic shield fully surrounding at least part of the void to provide an electromagnetic shield between an exterior of the container and items located within the said part of the void, an antenna located within the said part of the void and a signal generator connected to the antenna and operable to apply a signal to the antenna to cause the transmission of an impeding signal within the said part of the void to impede the reception of signals transmitted from locations external to the container by items located within the said part of the void.

A system for near field communications is provided. The system can include a near field generator configured to generate a near field detectable signal comprising information. The system can include a near field detector configured to receive the near field detectable signal and output the information. The system can include an Electro-Magnetic (EM) shield surrounding the near field generator to block EM radio frequency (RF) signals in the vicinity of the near field generator from interfering with operations of the near field generator. The EM shield does not prevent communication of the near field detectable signal between the near field generator and the near field detector. The EM shield can be configured to reduce magnetic field loss from eddy currents in the EM shield as the near field detectable signal passes through the EM shield.

A system for jamming a target acquisition, which starts at a position and may be detected by a detector that provides a detection signal in response to the target acquisition includes a warning device for outputting a warning, in case the detector outputs a detection signal. The system also includes an optical jammer configured to provide at least one jamming signal, and a directing device configured to direct the jamming signal towards the position in response to the output warning in order to prevent target acquisition or at least to make target acquisition more difficult.

A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body having a dual-grip configuration, with the directional antennae are affixed to a removable plate on a front portion of the body. The one or more disruption components may be internally mounted within the device body. The dual-grip configuration allows an operator to use his body to steady and support the device while maintaining the antenna on target. The second grip is positioned adjacent the first grip, with the first grip angled toward the rear of the device and the second grip angled toward the front of the device. The portable countermeasure device is aimed at a specific drone, the activator is engaged, and disruptive signals are directed toward the drone, disrupting the control, navigation, and other signals to and from the drone.

A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body, with the directional antennae are affixed to a front portion of the body. The one or more disruption components may be externally or internally mounted to the device body. The portable countermeasure device is aimed at a specific drone, the activator is engaged, and disruptive signals are directed toward the drone, disrupting the control, navigation, and other signals to and from the drone.

A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body, with the directional antennae are affixed to a front portion of the body. The one or more disruption components may be externally or internally mounted to the device body. The portable countermeasure device is aimed at a specific drone, the activator is engaged, and disruptive signals are directed toward the drone, disrupting the control, navigation, and other signals to and from the drone.

A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body having a dual-grip configuration, with the directional antennae are affixed to a front portion of the body. The one or more disruption components may be internally mounted within the device body. The dual-grip configuration allows an operator to use his body to steady and support the device while maintaining the antenna on target. The second grip is positioned adjacent the first grip, with the first grip angled toward the rear of the device and the second grip angled toward the front of the device. The portable countermeasure device is aimed at a specific drone, the activator is engaged, and disruptive signals are directed toward the drone, disrupting the control, navigation, and other signals to and from the drone.

An apparatus (100) includes a canine harness (101) with a radio frequency inhibitor (400). A leash (1002) can serve as a control device (102). The leash can selectively mechanically couple to the canine harness and electrically couple an actuator (114) to the radio frequency inhibitor. When the actuator is actuated, the radio frequency inhibitor is to emit one or more radio frequency inhibition signals (405), which can include the emission of all programmed signals simultaneously. Radio frequency inhibitors can also be integrated into clothing or armor (1802), as well as equipment (1901). The radio frequency inhibitor can interrupt, suppress, or halt electronic detonation communications to an explosive device.

A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body, with the directional antennae are affixed to a front portion of the body. The one or more disruption components may be externally or internally mounted to the device body. The portable countermeasure device is aimed at a specific drone, the activator is engaged, and disruptive signals are directed toward the drone, disrupting the control, navigation, and other signals to and from the drone.

A container is described having a base, sides and a top, the base, sides and top together defining a void within which items can be located in use, an electromagnetic shield fully surrounding at least part of the void to provide an electromagnetic shield between an exterior of the container and items located within the said part of the void, an antenna located within the said part of the void and a signal generator connected to the antenna and operable to apply a signal to the antenna to cause the transmission of an impeding signal within the said part of the void to impede the reception of signals transmitted from locations external to the container by items located within the said part of the void.