The 4-channels receiving multicoupler MCU3404B is designed for UHF trunked system and DMR station. It consists of a low noise balanced amplifier and a 4-channel splitter. A backup amplifier provides a non-interrupt operation in case of amplifier failure. A monitoring board provides remote and local control. It is available in 3U height 19 inches rack. The multicoupler provides high output channels isolation and incorporates a preselector band-pass filter to reject transmitters spurious and intermodulation signals.