Electronic system, comprising: - a radiative electromagnetic emitter configured for selectively emitting an activation signal, the activation signal including in series a power supply signal followed by an identification signal; - an interface for connecting to an electrical power supply source; - an electrical load intended to be powered by the power supply source; - a circuit for deactivating the placing of the electrical load on standby, including: - a receiver comprising: - a reception interface; - a rectifier connected to the reception interface and configured for generating a direct-current activation voltage from an activation signal received at the reception interface; - an activation switch configured for selectively connecting/disconnecting the load to/from the power supply as a function of the state of a control signal; - an identification circuit configured for extracting an identifier from the activation signal and determining the agreement between the extracted identifier and an identifier stored in memory, and configured for applying the activation voltage as a signal controlling the closing of the activation switch if an agreement is determined, characterized in that: - the radiative electromagnetic emitter is configured for selectively emitting the activation signal in the UHF frequency band, the power of the power supply signal of the activation signal being at least ten times greater than the power of the identification signal; - the rectifier includes a rectifier circuit and a device for storing an electrical load connected to the output of the rectifier circuit. - a radiative electromagnetic emitter configured for selectively emitting an activation signal, the activation signal including in series a power supply signal followed by an identification signal; - an interface for connecting to an electrical power supply source; - an electrical load intended to be powered by the power supply source; - a circuit for deactivating the placing of the electrical load on standby, including: - a receiver comprising: - a reception interface; - a rectifier connected to the reception interface and configured for generating a direct-current activation voltage from an activation signal received at the reception interface; - an activation switch configured for selectively connecting/disconnecting the load to/from the power supply as a function of the state of a control signal; - an identification circuit configured for extracting an identifier from the activation signal and determining the agreement between the extracted identifier and an identifier stored in memory, and configured for applying the activation voltage as a signal controlling the closing of the activation switch if an agreement is determined, characterized in that: - the radiative electromagnetic emitter is configured for selectively emitting the activation signal in the UHF frequency band, the power of the power supply signal of the activation signal being at least ten times greater than the power of the identification signal; - the rectifier includes a rectifier circuit and a device for storing an electrical load connected to the output of the rectifier circuit. - a receiver comprising: - a reception interface; - a rectifier connected to the reception interface and configured for generating a direct-current activation voltage from an activation signal received at the reception interface; - a reception interface; - a rectifier connected to the reception interface and configured for generating a direct-current activation voltage from an activation signal received at the reception interface; - an activation switch configured for selectively connecting/disconnecting the load to/from the power supply as a function of the state of a control signal; - an identification circuit configured for extracting an identifier from the activation signal and determining the agreement between the extracted identifier and an identifier stored in memory, and configured for applying the activation voltage as a signal controlling the closing of the activation switch if an agreement is determined, characterized in that: - the radiative electromagnetic emitter is configured for selectively emitting the activation signal in the UHF frequency band, the power of the power supply signal of the activation signal being at least ten times greater than the power of the identification signal; - the rectifier includes a rectifier circuit and a device for storing an electrical load connected to the output of the rectifier circuit. - the radiative electromagnetic emitter is configured for selectively emitting the activation signal in the UHF frequency band, the power of the power supply signal of the activation signal being at least ten times greater than the power of the identification signal; - the rectifier includes a rectifier circuit and a device for storing an electrical load connected to the output of the rectifier circuit.