Lectrosonics UCR411A UHF Receiver Block 22 (563-588MHz) (For Parts)

The Lectrosonics UCR411A is a professional, field-proven digital hybrid wireless receiver that has been a mainstay in the film, broadcast, and theater industries for its exceptional audio quality, robust RF performance, and reliability. Operating within designated UHF frequency blocks, it utilizes Lectrosonics' proprietary Digital Hybrid Wireless technology. This system transmits an analog FM RF signal for superior range and interference rejection but embeds a digitally encoded audio signal within it. The receiver demodulates the FM signal and then decodes the digital audio, resulting in crystal-clear sound with the noise floor and transparency approaching that of a digital system, while maintaining the robust link characteristics of analog. This makes it exceptionally reliable in challenging RF environments like urban areas or large event productions.

The UCR411A is a single-channel, diversity receiver, meaning it uses two separate antenna inputs and internal circuitry to constantly select the strongest, cleanest signal, minimizing dropouts and multipath distortion. Housed in a rugged, half-rack width metal chassis, it is built for both rack mounting in a production truck and portable use in a sound bag with an optional docking tray. It features a comprehensive front-panel display and controls for frequency selection, audio level adjustment, and monitoring of RF signal strength and battery status from compatible transmitters. With its wide tuning range, high selectivity, and support for multiple modulation formats, it offers outstanding flexibility and interoperability within a wireless system.

For production sound mixers, the UCR411A is a trusted workhorse for critical audio capture. It is commonly used for wiring principal actors, hosts, or panelists, providing a wireless link that delivers broadcast-quality audio with minimal compromise. Its ability to work seamlessly with a wide range of Lectrosonics transmitters, such as the SM series lavalier and handheld units, makes it a versatile core component of a professional wireless ecosystem. The receiver's durability, consistent performance, and superior audio have cemented its reputation as an industry standard for high-stakes audio applications where clarity and reliability are non-negotiable.