A fuze for an explosive weapon, comprising: - onboard sensors to monitor operation of the fuze and/or of the explosive weapon, - a radar sensor to transmit radar signals and receive reflected radar signals, and - an electronic signal processor connected to the onboard sensors and to the radar sensor, the electronic signal processor is programmed to implement a main operating function designed to implement an explosive weapon detonation logic based on received radar signals from the radar sensor or on signals from the onboard sensors; the electronic signal processor is further programmed to implement a secondary operating function supplementary to the main operating function and comprising a telemetry function designed to determine, based on signals from the onboard sensors, and to transmit, via the radar sensor, telemetry data indicative of the operation of the fuze and/or the explosive weapon during flight thereof; characterized in that the electronic signal processor is further programmed to allow an implementation mode of the secondary operating function to be programmed by selecting it from available implementation modes comprising an implementation mode in which the secondary operating function is implemented in periods of time when the main operating function is not implemented, and an implementation mode in which the secondary operating function is implemented simultaneously with the main operating function. - onboard sensors to monitor operation of the fuze and/or of the explosive weapon, - a radar sensor to transmit radar signals and receive reflected radar signals, and - an electronic signal processor connected to the onboard sensors and to the radar sensor, the electronic signal processor is programmed to implement a main operating function designed to implement an explosive weapon detonation logic based on received radar signals from the radar sensor or on signals from the onboard sensors; the electronic signal processor is further programmed to implement a secondary operating function supplementary to the main operating function and comprising a telemetry function designed to determine, based on signals from the onboard sensors, and to transmit, via the radar sensor, telemetry data indicative of the operation of the fuze and/or the explosive weapon during flight thereof; characterized in that the electronic signal processor is further programmed to allow an implementation mode of the secondary operating function to be programmed by selecting it from available implementation modes comprising an implementation mode in which the secondary operating function is implemented in periods of time when the main operating function is not implemented, and an implementation mode in which the secondary operating function is implemented simultaneously with the main operating function. the electronic signal processor is programmed to implement a main operating function designed to implement an explosive weapon detonation logic based on received radar signals from the radar sensor or on signals from the onboard sensors; the electronic signal processor is further programmed to implement a secondary operating function supplementary to the main operating function and comprising a telemetry function designed to determine, based on signals from the onboard sensors, and to transmit, via the radar sensor, telemetry data indicative of the operation of the fuze and/or the explosive weapon during flight thereof; characterized in that the electronic signal processor is further programmed to allow an implementation mode of the secondary operating function to be programmed by selecting it from available implementation modes comprising an implementation mode in which the secondary operating function is implemented in periods of time when the main operating function is not implemented, and an implementation mode in which the secondary operating function is implemented simultaneously with the main operating function.