Lectrosonics UCR411A Digital Hybrid Wireless® Compact Receiver

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Discontinued, No Longer Available


The Lectrosonics UCR411A provides professional performance and a versatile feature set in a compact design for field and location production. All settings are made from the front panel with a powerful LCD interface, making the unit ideal for use in Quad Paks, on sound carts, in portable bags and in rack mount multicouplers. To alleviate interference problems in an increasingly congested RF spectrum, an RF spectrum analyzer is built into the receiver. The receiver tunes across its 25.6 MHz tuning range and records RF activity with markers on the LCD screen. Finding clear operating frequencies is a quick, simple process. The UCR411A is compatible with all 400 Series Lectrosonics wireless transmitters and can be powered with internal 9V batteries or external DC.

The mechanical design of the receiver combines field proven features developed over many years of experience in motion picture and television production markets. The machined aluminum housing and panels are surfaced with electrostatic powder coated and anodized finishes with laser etched markings to withstand the rigors of field production

  • 256 selectable UHF frequencies
  • Auto-tracking front-end filters
  • DSP-based pilot tone
  • Graphics type backlit LCD display
  • Balanced XLR audio output
  • Internal batteries or external DC powering options
  • Compatiblity modes for use with analog transmitters


  • Frequency Adjustment Range: 25.5 MHz in 100 kHz steps
  • Receiver Type: Triple conversion, superheterodyne
  • IF Frequencies: 244 MHz, 10.7 MHz and 300 kHz
  • Frequency Stability: ± 0.001 %
  • Front End Bandwidth: ± 5.5 MHz @ -3 dB
  • Sensitivity
    • 20 dB Sinad: 0.9 uV (-108 dBm), A weighted
    • 60 dB Quieting: 1.12 uV (-105 dBm), A weighted
  • AM Rejection: > 60 dB, 2 uV to 1 Volt
  • Modulation Acceptance: 85 kHz
  • Image & Spurious Rejection: 85 dB
  • Third Order Intercept: +8 dBm
  • Diversity Method: Phased antenna SmartDiversity™
  • FM Detector: Digital Pulse Counting Detector operating at 300 kHz
  • Antenna Inputs: Dual BNC female, 50 Ohm impedance
  • Audio Output: Rear panel XLR connector; can drive 600 Ohm, adjustable from -50 to +5 dBu in 1 dB steps (into nominal 10 k bal. load)
  • Audio Performance (applies to 400 Series mode only):
    • Frequency Response: 30 Hz to 20 kHz (+/- 1 dB)
    • THD: 0.2 % (typical)
    • Input Dynamic Range: 125 dB (with full Tx limiting)
    • Overall Latency (time delay): 3mS
    • Audio Test Tone: 1 KHz, -50 to +5 dBu, < 1% THD
  • Front Panel Controls & Indicators:
    • LCD display
    • Menu - up/down buttons
    • Power switch
  • Rear Panel Controls & Features:
    • XLR and 1/4-inch phone audio output jack
    • External DC input
    • Battery compartment
  • Power, Ext DC: Minimum 10 volts to maximum 18 VDC; 1.6 W, 170 mA at 12 VDC
  • Dimensions (W x H x D): 3.23 x 1.23 x 4.75 in
  • Weight: 15.2 oz, with two alkaline 9V batteries