Abstract: To monitor goods and/or containers a method and a system are proposed that comprises the following components. Each good or container is allocated a transponder on which influence variables on the good or on the container are recorded by means of a sensor means. The transponders are wirelessly connected to each other, e.g. as an ad-hoc network. One of the transponders transmits all of the recorded influence variables to an allocated communication unit. In this way, a system is provided that automatically, and without manual intervention, provides very early detection of impermissible effects on the goods to be stored or transported. In this way, for example, a re-ordering can be activated before the impaired goods are delivered to the intended recipient.

Abstract: Electronic tickets are triggered by a trigger message, out of a standby state, for the determination of used capacity. In order to further reduce energy requirements, or to increase the autonomy of the tickets, a trigger message recognition and selection is disclosed, whereby firstly a trigger message is detected in a receiver and, subsequently, when information contained in a detected tigger message is destined for the relevant ticket, a processor module is activated by means of a switch. In a preferred embodiment, the activation is a multi-stage form, in which a digital filter is arranged between the receiver and processor module which can also be activated by a switch. The switch for activating the process module may be operated by the digital filter.

Abstract: A radar system, such as a tracking radar installation or other radar installation which is of the pulse compression type, transmits data during transmission of the radar signal. The data is transmitted by inserting, into the radar signal, at least one short nonpulse interval. The position of the nonpulse interval within the radar pulse can be modulated.

Abstract: Radar systems that operate in accordance with the crossfeed method require an exact balancing of the individual Doppler frequency evaluation channels in the receiver. According to the invention, a special method is used first to make the amplitude levels in the individual channels equal to one another and then to determine and balance the phase differences between the channels. A radar system using this method is also described.