Abstract: A failures detection system (1) of a plurality of transmitting antennas of television and/or radio signals. The system includes a power divider splitting a television and/or radio signal (STV) to a plurality and antennas, and a plurality of directional couplers and of signal concentrators that send a multiplexed signal containing information on the SWR, power, and environmental parameters to a processing module (22) configured to process the multiplexed signal generating diagnostics and warning signals.

Abstract: Describes a failures detection system (1) of a plurality of transmitting antennas of television and/or radio signals. The system includes a power divider (15) configured to receive a television and/or radio signal (STV) and from this generate a first plurality (si1, si2, SI3, SI4) of television and/or radio signals, and includes a plurality of directional couplers (10, 11, 12, 13) configured to receive the first plurality of television and/or radio signals and from these generate a corresponding second plurality (So1, So2, So3, So4) of television and/or radio signals. The plurality of directional couplers includes respective first power sensors (40) configured to generate a third plurality (spd1, spd2, spd3, spd4) of signals indicative of the direct power transmitted to the plurality of antennas and comprises respective second sensors of power (41) configured to generate a fourth plurality (spr1, spr2, spr3, spr4) of signals indicative of the reflected power from the plurality of antennas.