About the Lectrosonics UMC16B 8-Channel Wide Band Antenna Multicoupler
The Lectrosonics UMC16B is an advanced, active antenna multicoupler engineered to distribute a single pair of wideband antenna signals to up to eight wireless receivers without signal degradation, a critical function in large-scale professional wireless microphone and IFB systems. This device addresses the common challenge of signal loss and intermodulation that occurs when multiple receivers are directly connected to a shared antenna source, ensuring each receiver maintains optimal RF sensitivity and system noise floor. It is specifically designed for high-density wireless deployments in broadcast trucks, large theatrical productions, major sporting events, and concert tours where numerous wireless channels must operate simultaneously in a congested radio frequency environment. The multicoupler's sophisticated amplification and filtering preserve the integrity of the incoming RF signal, effectively extending the dynamic range and reliability of the entire wireless network.
At the core of the UMC16B's performance is its low-noise amplifier technology, which provides just enough gain to offset distribution losses while introducing minimal additional noise, a key metric measured by its excellent noise figure. The unit features two independent channels, allowing for the connection of a true diversity antenna pair (A and B), with each channel split to feed eight receiver ports. It incorporates band-pass filtering to reject out-of-band interference, which is crucial for preventing strong off-frequency RF signals from overloading the sensitive front ends of the connected receivers. Constructed in a rugged 1U rack-mountable metal enclosure, the device is built for reliability in demanding touring and fixed-installation environments, with passive cooling and robust BNC connectors designed for repeated connection and disconnection.
The multicoupler offers significant flexibility with user-selectable gain settings and DC power pass-through on its antenna output ports, simplifying system wiring by allowing remote antennas to be powered directly through the same coaxial cable that carries the RF signal. This capability is particularly valuable when using active directional antennas that require bias voltage. By centralizing antenna distribution, the UMC16B reduces cable clutter, minimizes potential points of failure, and provides a cleaner, more manageable RF infrastructure. It represents an essential component for audio professionals who require maximum RF performance and system stability when scaling up to large channel counts, ensuring every wireless receiver has access to the strongest possible signal from the shared antenna array.