Overview
The Lectrosonics LR Receiver is the latest successor to the line of economical beltpack transmitters designed for applications including theater, house of worship, TV, ENG, video and film production.
The ultra-compact LR Receiver is part of the L Series or "Large Bandwidth" line of wireless microphones. The other two components of the series are the LMb and LT Beltpack Transmitters. All three units share a wide tuning range of three standard Lectrosonics blocks, or 67.5 to 76.7 MHz, depending on the specific frequency band, and employ Lectrosonics' patented Digital Hybrid Wireless technology for compandor-free audio along with compatibility modes for inter-operability with older analog systems.
Excellent performance in a small package for ENG and DSLR video production is the purpose and intent of the LR Receiver design. Tracking front-end filters block interference from high powered RF signals on nearby channels to preserve the extended operating range. RF spectrum scanning displays accurate results on the LCD to make finding clear spectrum quick and easy.
The receiver is powered by internal AA batteries or with an optional battery eliminator. The top panel includes an IR port for transmitter setup. Firmware updates are enabled via a USB port on the side panel. The housing is made from a solid machined aluminum billet.
- Tunes over a 75 MHz range*
- Tracking front-end filters
- Digital Hybrid Wireless with compatibility modes for use with earlier transmitters
- Compact size powered by two AA batteries or an optional battery eliminator
- LCD with RF spectrum scanning
- Smart Squelch™ noiseless muting adapts automatically for near/far operation
- DSP-based pilot tone for squelch control
- USB port for firmware updates
- IR sync port for transmitter setup
Specifications
- Operating Frequencies (MHz):
- Tuning Range A1: 470.1 to 537.575
- Tuning Range B1: 537.6 to 614.375
- Frequency Selection Steps: Selectable; 100 kHz or 25 kHz
- Receiver Type: Dual conversion, superheterodyne
- IF Frequencies: 243.950 MHz and 250.000 kHz
- Frequency Stability: ± 0.001 %
- Front End Bandwidth: 20 MHz @ -3 dB
- Sensitivity:
- 20 dB SINAD: 1 uV (-107 dBm), A-weighted
- 60 dB Quieting: 2.2 uV (-100 dBm), A-weighted
- Squelch Quieting: > 100 dB typical
- Modulation Acceptance: ± 100 kHz max; varies with selected compatibility mode
- Image & Spurious Rejection: 85 dB
- Third Order Intercept: 0 dBm
- Diversity Method: SmartDiversity™ phased antenna combining
- FM Detector: Digital Pulse Counting Detector
- RF Spectrum Analyzer: Single and multiple block scanning modes; coarse and fine views of results
- Antenna Inputs: 50 Ω SMA female connectors
- Audio Output Connector: TA3 male (mini XLR) balanced output
- Audio Output Level: Adjustable -50 to +5 dBu in 1 dB steps; unbalanced output level is 6 dB lower
- Front Panel Controls/Indicators:
- Sealed panel with membrane switches
- LCD for setup menus and monitoring
- Audio Test Tone: 1 kHz, -50 dBu to +5 dBu output (bal); 1% THD
- Transmitter Battery Type: AA alkaline or lithium; timer available for use with alkaline, lithium and NiMH
- Audio Polarity Section: Normal or inverted
- SmartNR (Noise Reduction): OFF, NORMAL, FULL modes (available in Digital Hybrid Wireless mode only)
- Audio Performance:
- Frequency Response: 32 Hz to 20 kHz (± 1 dB) receiver only (see transmitter documentation for overall system response)
- Total Harmonic Distortion: < 0.4 (0.2% typical in Digital Hybrid mode)
- Top Panel Features:
- TA3M audio output jack
- (2) SMA antenna jacks
- IR (infrared) port
- Operating Runtimes: 4 hours, AA alkaline
- Operating Temperature: -4° to +122° F | -20° to +50° C
- Dimensions (H x W x D): 3.21 x 2.45 x .84 in | 82 x 62 x 21 mm
- Weight: 6.54 oz | 185 g, with (2) alkaline batteries
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