• SRc dual-channel slot receiver, two units stacked in three-quarter front view showing LCD display, MENU/SEL and PWR/BACK buttons, up/down arrows, IR port and dual antenna connectors, Lectrosonics
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Lectrosonics SRc Compact Dual-Channel UHF Slot Receiver | Block B1

Lectrosonics SRc Compact Dual-Channel UHF Slot Receiver | Block B1

SoundPro Item: 208163 | Part Number: SRC-B1

$2,893.00
$3,211.00 $2,893.00
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MSRP: $3,211.00 | MAP: $2,893.00

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  • Camera Slot, Duopack, And Octopack Compatible For Flexible Deployment Options
  • Tracking Front-End Filters Suppress High-Power TV Interference In Congested UHF Bands
  • Digital Hybrid Wireless Delivers Compandor-Free Audio With 20 kHz Flat Response
  • Dual Receiver Design Supports Two-Channel Or Single-Channel Ratio Diversity Operation
  • SmartSquelch DSP Applies Noise Reduction Continuously Before Triggering Full Mute
  • SmartTune Frequency Selection Speeds Setup With Automatic IR Sync Prompting
  • Built-In RF Spectrum Analyzer Enables Fast, Confident Frequency Coordination On Location
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The Lectrosonics SRc is a professional-grade dual-channel UHF wireless receiver built for ENG camera operators, field production sound mixers, and broadcast engineers who need reliable RF performance in spectrum-congested environments. Designed to fit standard camera receiver slots, the Lectrosonics Duopack adapter, and the Octopack multicoupler, it also operates stand-alone with optional adapters, making it equally at home on a camera rig or a sound bag.

Digital Hybrid Wireless technology encodes 24-bit digital audio into an analog FM link using a patented algorithm, delivering a frequency response flat to 20 kHz without compandor artifacts. Tracking front-end filters continuously retune around the selected carrier, suppressing high-power UHF TV interference that causes noise bursts and dropouts in receivers with fixed front-end designs. SmartDiversity phased antenna combining and ratio diversity modes give the operator two strategies for managing multipath in challenging locations such as interiors, crowd environments, and urban shoots.

DSP-based SmartSquelch monitors RF level and supersonic noise continuously to apply precise noise reduction before triggering full mute, avoiding the abrupt cutoffs common to threshold-only squelch designs. SmartTune scans the full tuning range and assigns the clearest available frequency, then prompts IR sync to the paired transmitter, cutting setup time in fast-turnaround production scenarios. The sealed membrane control panel with backlit LCD, built-in spectrum analyzer, and automatic power-state restoration make the SRc a practical choice for solo operators who need a receiver that is fast to configure and hard to disrupt in the field.

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Specifications

Operating Frequencies
Band B1
537.600 - 614.375 MHz
Frequency Selection Steps
Selectable; 100 kHz or 25 kHz
Tuning Range
76 MHz (3 blocks)
RF Performance
Receiver Type
Dual conversion, superheterodyne
IF Frequencies Ch.1
248.450 MHz and 350.000 kHz
IF Frequencies Ch.2
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 weighted
60 dB Quieting
2.2 uV (-100 dBm), A weighted
Squelch Quieting
Greater than 100 dB typical
AM Rejection
Greater than 60 dB, 4 uV to 1 Volt
Modulation Acceptance
85 kHz
Image And Spurious Rejection
85 dB
Third Order Intercept
0 dBm
FM Detector
Digital Pulse Counting Detector operating at 250 and 350 kHz
Diversity
Diversity Method
SmartDiversity phased antenna combining or Ratio Diversity using both receivers for a single audio channel
Audio
Audio Output Level
Adjustable -50 to +5 dBu in 1 dB steps; unbalanced output is 6 dB lower
Audio Channel Crosstalk
-80 dB or better
Audio Test Tone
1 kHz, -50 dBu to +5 dBu output (balanced); 1% THD
Connectivity
Antenna Inputs
50 Ohm; SMA female connectors
Audio Output Connectors
Interchangeable D connector adapters for camera slot interfaces; Dual TA3 male (mini XLR) balanced output adapter; Balanced output adapter with fixed cables
Front Panel Audio Output (5P Model)
Control panel TA5M with two balanced outputs
Controls
Front Panel
Sealed membrane switches; LCD monitors pilot tone, antenna phase, receiver battery level, transmitter battery status, audio level, RF level
RF Spectrum Analyzer
Coarse and fine scanning modes for RF spectrum site survey
Included Items
Adjustment Tool
Part 35679
Antennas
2x AMJ-XX
Documentation
Quickstart Guide

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