
Lectrosonics LR-B1, MINIATURE DIGITAL HYBRID RECEIVER, 75 MHZ TUNING RANGE, 2 AA
Descriptions Lectrosonics LR-B1, MINIATURE DIGITAL HYBRID RECEIVER, 75 MHZ TUNING RANGE, 2 AA The Lectrosonics LR is a Camera-Mount Wireless Receiver with a digital hybrid ultra-compact portable wireless bodypack receiver with 75 MHz tuning bandwidth and with tracking front-end filters. When paired with a transmitter and microphone it can be used to capture audio in environments for applications such as broadcast TV, video production, ENG field work, and many more. The Lectrosonics LR has several unique features to help provide a good and satisfying clear audio, such as compatibility modes to allow the receiver to operate with older analog receivers. Dual antenna diversity helps to improve range and resistance to dropouts. There is also a built-in RF spectrum analyzer and SmartTune scan, which makes finding a clean frequency on-site quick and easy. Additionally, the LR receiver is constructed in machined-aluminum housing and built with detachable antennas that allow for remote antenna mounting. LCD and membrane switch interfaces provide clear information for setup and status monitoring. This transmitter operates in the B1 frequency band between 537.600 to 607.950 MHz. Lectrosonics LR-B1 Main Features For Broadcast, EFP, and ENG Applications 75 MHz Tuning Range Digital Hybrid Wireless Diversity Reception Specifications Channel B1 Operating Frequencies 537.600 to 607.950 MHz Frequency Selection Steps Selectable 25 or 100 kHz Receiver Type Dual conversion, superheterodyne IF Frequency 243.950 MHz and 250.000 kHz Frequency Stability ± 0.001% Front End Bandwidth 20 MHz @ -3 dB Sensitivity 20 dB SINAD: 1.0 uV (-107 dBm), A weighted60 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 and 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 with coarse and fine views of results Antenna Inputs 2x 50 ohms SMA female connectors Audio Output 1x TA3 male (mini XLR) balanced output Audio Output Level Adjustable -50 to +5 dBu in 1 dB steps, the unbalanced output level is 6 dB lower Front Panel Controls Sealed panel with membrane switchesLCD for setup menus and monitoring Audio Test Tone 1 kHz, -50 dBu to +5 dBu output (balanced), 1% THD Transmitter Battery Type Selection AA alkaline or lithiumTimer available for use with alkaline, lithium, and HiMH Audio Polarity Selection Normal or inverted Compatibility Modes Digital Hybrid (North American and European)Lectrosonics 100, 200, and 300 seriesLectrosonics IFBNon-Lectrosonics modes 3, 6 an 7 (contact the factory for details) Smart NR (Noise Reduction) Off, Normal, Full modes (available in Digital Hybrid 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 (THD) Top Panel Features 1 x TA3M audio output jack2 x SMA antenna jacks 1 x IR (infrared) port Battery / Runtime 4 hours, AA alkaline Operating Temperature -4 to 32 °F (-20 to +50°C) Dimensions (L x W x H) 3.21 x 2.45 x 0.84" (82 x 62 x 21 mm) Weight 6.54 oz (185.4 g) with two AA lithium batteries