At least one nodal geophysical data recorder includes at least one geophysical data sensor.

The known data detector detects positions of known data and field sync data included in a data group.

These elements include one or more data sensors (40, 42), at least one of which is an image sensor.

Also included are a data sensor circuit and a capture circuit.

Each data source includes a data sensor for sensing data generation at each data source indicative of network resource usage.

The data sensor (1) has a housing (7) in which a control (8), a power supply unit (9), a data memory (10) and a pressure sensor (13), and the data read-out device (2) with a data output (12) are disposed.

The at least one sensor detects data, over a predetermined period of time, and transmission of said at least one package of data to said data recipient.

The service data of a broadcast program which are picked up by a data pickup circuit (6) are analyzed by a digital data analysis unit (91).

A data sensor (50) is also included and is configured to sense data stored on the fastener data storage device and the at least one component data storage device.