Lectrosonics SRc Bundle (1 x SRc: B1, 1 x SREXT, 2 x SMQV)


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The bundle includes 1 x SRc: B1: 537.600 - 614.375 MHz, 1 x SREXT, 2 x SMQV. Specify freq for SMQV 470, 19 or 20

SRc receiver
Digital Hybrid Wireless technology provides superb, compandor-free audio quality and compatibility with other wireless systems. The RF performance is extreme- ly stable over a very wide temperature range, making the receiver perfectly suited to the rough environmental conditions found in field production.
A DSP compatibility mode allows the receiver to be used with a variety of Lectrosonics and other brands of wire- less systems and with Lectrosonics IFB transmitters.

The front panel features a menu-driven LCD interface and four membrane switches which are used to view and alter settings. The main LCD window displays the pilot tone indicator, diversity activity, RF level, audio level and transmitter battery status for both receivers. To find clear operating frequencies, a built-in spectrum analyzer scans across the tuning range of the receiver and dis- plays a histogram of RF activity within the tuning range. Areas of little or no RF activity are easily recognizable.

The two internal receivers can be operated separately, each using switching, antenna combining diversity, or in tandem with ratio diversity reception. The audio outputs of the receivers can be mixed internally, or left separated for discrete recording tracks or external mixing.

A variety of output adapters and mounting options are available for camera slot operation. On the SRb5P, a 5-pin connector next to the control panel provides audio output from both channels in addition to the camera slot outputs. The unit is powered from an external 6 to 18 volt DC source.

Digital Hybrid Wireless is a revolutionary design that combines digital audio with an analog FM radio link to provide both outstanding audio quality and exemplary, noise-free RF performance.
Using a patented algorithm to encode 24-bit digital audio information in the transmitter into an analog format, the encoded signal is then transmitted over an analog FM wireless link.
At the receiver, the signal is then decoded to restore the original digital audio. This process eliminates compandor artifacts and produces an audio frequency response flat to 20 kHz.

Operating Frequencies:
Tuning range A1: 470.100 - 537.575 MHz
Tuning range B1: 537.600 - 614.375 MHz
Tuning range C1: 614.400 - 691.175 MHz

SREXT adapter
Adapter kit for SR receiver, two TA3 audio output jacks, locking power connector, includes 6' power cord. Has spare mounting screws in dummy holes in adapter.

SMQV Dual Battery - Digital Hybrid Wireless UHF Belt-Pack Transmitter
To meet the demand for both extended operating range and extended battery life, the "V" series SM transmitters offer selectable output power (See specific model data sheets for details). A third selection at 50 mW is provided for some theatrical applications where the system design specifies lower transmitter power.

The input section features the unique servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals. A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more than 30 dB for excellent overload protection and a dual release envelope that makes the limiter acoustically transparent while maintaining low distortion. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels to keep audio distortion low while preserving short-term dynamics.

Specify operating frequencies for SMQV:
Block 470 470.100 - 495.675
Block 19 486.400 - 511.975
Block 20 512.000 - 537.575
SRc receiver
Fits camera "slots," Lectrosonics Duopack adapter and Octopack multicoupler, and operates stand-alone with various adapters
Tunes over a 75 MHz range* (3 blocks)
Dual receiver design for two channels with phase switched diversity or single channel with ratio diversity operation
Digital Hybrid Wireless with compatibility modes for use with other transmitters
Tracking front-end filters for high performance in tough RF environments
LCD with RF spectrum scanning
SmartSquelchTM DSP-controlled, noise based filtering and squelch
DSP-based pilot tone for squelch control
IR sync port for quick transmitter setup (LMb, LT, HHa, HMa, & SSM)
SmartTune operation for quick and confident frequency selection

Digital Hybrid Wireless Technology
(U.S. Patent #7,225,135)
Variable, selectable power output:
SMQV: 50mW, 100mW, 250mW (for X and US units, blocks 470-23)
SMQV: 50mW, 100mW (for US units, block 941)
Membrane switch control panel with LCD display
Wide input dynamic range
DSP based pilot-tone signal
Circulator/Isolator output stage
Splash-proof, machined aluminum housing
Non-corrosive, super-hard finish
SRc receiver
Operating Frequencies: Tuning range B1: 537.600 - 614.375 MHz
Frequency selection steps: Selectable; 100 kHz or 25 kHz
Receiver Type: Dual conversion, superheterodyne
IF Frequencies:
Ch.1: 248.450 MHz and 350.000 kHz
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
Diversity method: SmartDiversity phased antenna combining or Ratio Diversity using both receivers for single audio channel
FM Detector: Digital Pulse Counting Detector operating at 250 and 350 kHz
RF spectrum analyzer: Coarse and fine scanning modes for RF spectrum site survey
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
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

SMQV transmitter
Specify operating frequencies:
Block 470 470.100 - 495.675
Block 19 486.400 - 511.975
Block 20 512.000 - 537.575

Channel Spacing: Selectable; 25 or 100 kHz
RF Power output: Switchable; 25, 50 or 100 mW
Compatibility Modes: Digital Hybrid Wireless (NU Hbr), 200 Series, 100 Series, Mode 3, Mode 6, IFB
Pilot tone (Digital Hybrid Mode): 25 to 32 kHz; 5 kHz deviation
Frequency stability: ± 0.002%
Deviation: ± 75 kHz max. (Digital Hybrid Mode)
Spurious radiation: Compliant with ETSI EN 300 422-1
Equivalent input noise: -125 dBV, A-weighted

Input level
If set for dynamic mic: 0.5 mV to 50 mV before limiting, Greater than 1 V with limiting
If set for electret lavaliere mic: 1.7 uA to 170 uA before limiting, Greater than 5000 uA (5 mA) with limiting
Line level input: 17 mV to 1.7 V before limiting, Greater than 50 V with limiting

Input impedance
Dynamic mic: 300 Ohms
Electret lavaliere: Input is virtual ground with servo adjusted constant current bias
Line level: 2.7 k ohms
Input limiter: Soft limiter, 30 dB range

Bias voltages: Fixed 5 V at up to 5 mA, Selectable 2 V or 4 V servo bias for any electret lavaliere
Gain control range: 44 dB; panel mounted membrane switches
Modulation indicators: Dual bicolor LEDs indicate modulation -20, -10, 0, +10 dB referenced to full modulation
Controls: Control panel w/ LCD and 4 membrane switches
Low frequency roll-off: Adjustable from 35 to 150 Hz
Audio Frequency Response: 35 Hz to 20 kHz, +/-1 dB

Signal to Noise Ratio (dB) (overall system, 400 Series mode)

OFF: No Limiting: 103.5 w/Limiting 108.0
NORMAL: No Limiting 107.0, w/Limiting 111.5
FULL: No Limiting 108.5, w/Limiting 113.0

Total Harmonic Distortion: 0.2% typical (400 Series mode)
Audio Input Jack: Switchcraft 5-pin locking (TA5F)
Antenna: Flexible, unbreakable steel cable.
Battery: AA lithium, disposable

Battery Life w/ Lithium AA
SMWB 50 mW (1 AA): 7.25 hrs
SMWB 100 mW (1 AA): 5.5 hrs
SMDWB 50 mW (2 AA): 14.5 hrs
SMDWB 100 mW (2 AA): 14 hrs

Weight (w/ lithium batteries)
SMWB: 2.7 oz.. (75.9 grams)
SMDWB: 3.7 oz.. (105 grams)

Overall Dimensions (without microphone)
SMWB: 2.3 x 1.8 x 0.64 inches; 58 x 46 x 16 mm
SMDWB: 2.3 x 2.4 x 0.64 inches; 58 x 60 x 16 mm

Emission Designator: 180KF3E

Storage media: microSDHC memory card
File format: .wav files (BWF)
A/D converter: 24-bit
Sampling rate: 44.1 kHz

Recording modes/Bit rate
HD mono mode: 24 bit - 144 kbytes/s, 32 bit - 192 kbytes/s
Split gain mode: 24 bit - 288 kbytes/s, 32 bit - 384 kbytes/s

Type: Analog mic/line level compatible; servo bias preamp for 2V and 4V lavaliere microphones

Input level
Dynamic mic: 0.5 mV to 50 mV
Electret mic: Nominal 2 mV to 300 mV
Line level: 17 mV to 1.7 V

Input connector: TA5M 5-pin male

Audio Performance
Frequency response: 20 Hz to 20 kHz; +0.5/-1.5 dB
Dynamic range: 110 dB (A), before limiting
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