Lectrosonics UCR411A
Compact Wireless Microphone Receiver with LCD, Digital Hybrid Wireless, Tracking Front-End


The UCR411A receiver provides professional performance and a versatile feature set in a compact design for field and location production.
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List Price: $2,485.00
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Lectrosonics UCR411A
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The UCR411A receiver 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 multi-couplers. 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 some other transmitter types) 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.


  • Digital Hybrid Wireless™ (U.S. Patent Pending)
  • SmartSquelch™
  • SmartDiversity™
  • 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; superhet
  • 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 and spurious rejection: 85 dB
  • Third order intercept: +8 dBm
  • Diversity method: Phased antenna SmartDiversityTM
  • FM Detector: Digital pulse counting detector operating at 300 kHz
  • Antenna inputs: Dual BNC female jacks; 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 (overall system): (These audio performance specs apply only to 400 Series compatibility mode.)
  • Frequency Response: 32 Hz to 20 kHz (+/-1 dB)
  • THD: 0.2% (typical)
  • SNR at Receiver Output (dB): SmartNR OFF: 103.5 No Limiting, 108.0 w/Limiting; SmartNR NORMAL: 107.0 No Limiting, 111.5 w/Limiting; SmartNR FULL: 108.5 No Limiting, 113.0 w/Limiting
  • 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 and
  • Indicators: LCD display; Menu - up/down buttons; Power switch
  • Rear Panel Features: XLR audio output jack; External DC input; Battery compartment
  • External Power: Minumum 10 Volts to maximum 18 VDC 1.6 W; 170 mA at 12 VDC
  • Battery Life: 6 to 8 hrs. continuous, w/ two alkaline 9 V batteries; up to 20 hrs. continuous w/ two lithium 9 V batteries
  • Weight: 15.2 ozs. (with two alkaline 9V batteries)
  • Dimensions: 3.23” wide x 1.23” high x 4.75” deep

Consumer Alert

This particular wireless microphone device operates in portions of the 617-652 MHz or 663-698 MHz frequencies. Beginning in 2017, these frequencies are being transitioned by the Federal Communications Commission (FCC) to the 600 MHz service to meet increasing demand for wireless broadband services. Users of this device must cease operating on these frequencies no later than July 13, 2020. In addition, users of this device may be required to cease operations earlier than that date if their operations could cause harmful interference to a 600 MHz service licensee’s wireless operations on these frequencies. For more information, visit the FCC’s wireless microphone website at www.fcc.gov/wireless-microphones-guide or call the FCC at 1- 888-CALL-FCC (TTY: 1-888-TELL-FCC).

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