A simple structure is used to make it possible to select and switch to an optimum antenna, which exhibits a large reception field intensity, even during a short reception field intensity measurement interval.

A second reception field strength detector (102) detects the reception field strength with communication in a second communication format.

In the device, a first reception field strength detector (101) detects the reception field strength with communication in a first communication format.

The polarization calculation section 24 calculates reception polarization from the first reception field intensity value 21, second reception field intensity value 22 and phase difference value 23.

In particular, the individual frequency and phase of the plurality of the transmit/receive signals are rapidly varied to allow for automated manipulation (steering) of the transmit field pattern and receive field sensitivity.

Thus, reception field strength is greatly increased at the terminal station (2-i).

The receptive field of each kernel is disjunct from the others, i.e. overlapping.

A display (105) displays the reception field strength determined by the wireless status coordination unit (103).

We essentially observe a large receptive field without adding additional costs.

The controller arbitrates, controls and communicates with the communicators which are in range to receive its transmissions.

This arrangement allows a reliable and accurate IR reception field to be obtained with a shape more suited to expected user positioning.

The indicator is advantageously determined with the aid of a comparison of the received field strengths or of the temporal sequence of the logical contents or of the type of data signals on the receiving points.

The video terminal receiving the radio wave radiated from the audio terminal with the highest received radio field intensity is selected.

The beamfinder assembly also provides receiver-field laser viewing for receiver-path boresight adjustments.

The invention relates to a support for several solar cells comprising a separate reception field for each solar cell on which the solar cell is placed.