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Lectrosonics LR-B1 Miniature Digital Hybrid Receiver, 75 Mhz Tuning Range

 
  • Dale #:

    LECT-LRB1
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Description

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 acc... Read More

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Description

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.

Features:

  • 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
  • SmartSquelchTM 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

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.

Included Accessories:

  • 2 - AA Batteries
  • 2 - AMJXX (Specify Block)
  • 1 - 26895 Wire Belt Clip (Installed on Transmitter)

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Product Specs

Operating FrequenciesBand A1: 470.100 - 537.575 MHz
Band B1: 537.600 - 614.375 MHz*
Band C1: 614.400 - 691.175 MHz
*North American transmitter models exclude the radio astronomy frequency allocation from 608 to 614 MHz.
Frequency selection stepsSelectable; 100 kHz or 25 kHz
Receiver TypeDual conversion, superheterodyne
IF Frequencies243.950 MHz and 250.000 kHz
Frequency stability±0.001 %
Front end bandwidth20 MHz @ -3 dB
Sensitivity20 dB SINAD: 1.0 uV (-107 dBm), A weighted
60 dB Quieting: 2.2 uV (-100 dBm), A weighted
Squelch quietingGreater than 100 dB typical
Modulation acceptance+/-100 kHz max.; varies with selected compatibility mode
Image and spurious rejection85 dB
Third order intercept0 dBm
Diversity methodSmartDiversityTM phased antenna combining
FM detectorDigital Pulse Counting Detector
RF spectrum analyzerSingle and multiple block scanning modes; coarse and fine views of results
Antenna inputs50 Ohm; SMA female connectors
Audio outputTA3 male (mini XLR) balanced output
Audio output levelAdjustable -50 to +5 dBu in 1 dB steps; unbalanced output level is 6 dB lower
Front panel controls and indicatorsSealed panel with membrane switches
LCD for setup menus and monitoring
Audio test tone1 kHz, -50 dBu to +5 dBu output (bal); 1% THD
Transmitter battery type selectionAA Alkaline
AA lithium
Timer available for use with all types
Audio polarity selectionNormal or inverted
Compatibility modesDigital Hybrid (North American and European)
Lectrosonics 100, 200 and 300 Series
Lectrosonics IFB
Non-Lectrosonics modes 3, 6 and 7 (contact the factory for details)
SmartNR (noise reduction)OFF, NORMAL, FULL modes (available in Digital Hybrid mode only)
System frequency response32 Hz to 20 kHz (+/- 1 dB) receiver only (see transmitter documentation for overall system response)
Signal to noise ratio
SmartNRno limitingw/limiting
OFF103.5108.0
NORMAL107.0111.5
FULL108.5113.0
Note: The dual envelope "soft" limiter provides exceptionally good handling of transients using variable attack and release time constants.
Once activated, the limiter compresses 30+ dB of transmitter input range into 4.5 dB of receiver output range, thus reducing the measured figure for SNR without limiting by 4.5 dB.
Audio Performance
Frequency response32 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 featuresTA3M audio output jack
(2) SMA antenna jacks
IR (infrared) port
Operating runtimes4 hours, (Duracell Quantum Alkaline)
Current consumption360mA at 3 volts (+/- 10%)
Operating temperature-20° C to +50°C
Weight221 grams (7.1 ozs.) with two AA lithium batteries and two AMJ-Rev. A antennas
Dimensions (housing)3.21 x 2.45 x .84 in. (82 x 62 x 21 mm)

Specifications subject to change without notice

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