Used Lectrosonics UCR401 Digital Hybrid Wireless Compact Diversity Receiver. (Freq: 512.0-537.5 MHz, Block 20)

The Lectrosonics UCR401 Digital Hybrid Wireless Compact Diversity Receiver is a high performance compact UHF wireless microphone receiver for mobile applications such as ENG and film production. The compact size, battery and external power and rugged attached antennas are ideal for video camera mounted use. Unique DSP algorithms in the design provide full compatibility with all Lectrosonics 400 Series Digital Hybrid Wireless transmitters and variety of analog transmitters from Lectrosonics and some other manufacturers. Power is provided by two AA batteries, typically NiMH rechargeable types or external DC supplied via a jack on the rear panel.

Microprocessor control enables SmartSquelch and SmartDiversity advanced reception techniques to minimize noise and dropouts in all conditions. The receiver differentiates between close and distant operation and adjusts the squelch threshold automatically. In environments with significant RF reflections, the diversity switching activity optimizes the antenna combining based upon an analysis of RF level and audio content.

Finding a clear operating channel is simplified with a choice of 256 frequencies across a 25.6 MHz bandwidth. A built-in RF spectrum analyzer scans the entire tuning range of the receiver and displays RF activity on the built-in LCD. Signal strength of other signals in the vicinity is indicated and empty sections of the spectrum are quickly identified with the graphical display. The analyzer will scan the entire spectrum and display the results in about 25 seconds, so it is easy to find a clear frequency in each new location.

The DSP generates a unique pilot tone frequency for each selected operating frequency to simplify coordination in multi-channel wireless systems. This eliminates the possibility of a valid pilot tone signal being passed to another receiver via IM (intermodulation) products.

The balanced audio output is adjustable from -50 to +5 dBu in 1dB steps for an accurate match into the camera, mixer or recorder. The LCD provides continuous displays of RF and audio levels, limiting in the transmitter when it occurs and battery status in both transmitter and receiver when used with Digital Hybrid transmitters. The simple 3-button interface allows quick navigation through a variety of menus and screens for setup and adjustment. The display will flash a warning as alkaline and lithium battery life nears the end and show a clock when set for a timer mode with rechargeable batteries.