An equipment comprising an array of radio antennas and a switching device placed as a cutoff between the antennas and the associated reception channels, the switching device comprising a first so-called operational operating mode wherein each input interface is then connected directly to a different output interface so as to connect each antenna with at least the associated reception channel thereof, and a second so-called calibration operating mode, wherein an input interface corresponding to a predetermined antenna is then connected to all the output interfaces so as to transmit the electrical signal coming from the predetermined antenna to all the reception channels, the equipment being adapted for implementing a method for autocalibration of the reception channels when the switching device is in the second operating mode.