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


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The bundle includes 1 x SRc: A1: 470.100 - 537.575 MHz, 1 x SREXT, 2 x LT: B1: 537.600 - 614.375 MHz, BLOCKS 21, 22, 23

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.

LT (B1: 537.600 - 614.375 MHz, BLOCKS 21, 22, 23)
LT transmitter is compatible with all Digital Hybrid Wireless receivers and even some from other manufacturers, making it comfortable in a wide variety of applications from video production to theater, stage and house of worship.

The LT can be configured to operate as a "one touch" device with a single power on/off switch on the top panel, or with full access to all operational parameters using the side panel membrane switches and LCD interface. The top panel switch can also be configured to provide a mute or talkback function.
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

LT transmitter
Covers three standard frequency blocks
Digital Hybrid Wireless for compandor-free audio
Selectable 50 or 100mW output power
Compatibility modes for use with analog receivers
25 or 100 kHz tuning steps for up to 3072 selectable frequencies
Integrated multi-function switch for mute or talkback modes
Wide range input gain control in 1 dB steps
IR port for setup with IR enabled receivers
USB port for firmware updates
Menu selectable mic or instrument input
Optional battery eliminator
Detachable antenna
SRc receiver
Operating Frequencies: Tuning range A1: 470.100 - 537.575 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

LT transmitter
Operating Frequency: Band A1: 575 537.600 - 614
Frequency Selection Steps: Selectable; 100 kHz or 25 kHz
RF Power output: 50 or 100 mW
Pilot tone: 25 to 32 kHz; 5 kHz deviation (Digital Hybrid mode)
Frequency Stability: ± 0.002%
Deviation: ± 75 kHz max. (Digital Hybrid mode)
Spurious radiation: 60 dB below carrier
Equivalent input noise: -120 dBV (A-weighted)
Input level: Nominal 2 mV to 300 mV, before limiting Greater than 1V maximum, with limiting.

Input impedance
Mic: 300 Ohm
Line: 2k Ohm

Input limiter: DSP controlled, dual envelope "soft" limiter with greater than 30 dB range
Gain control range: 44 dB; digital control
Modulation indicators: Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation, LCD bar graph
Controls: Top panel toggle switch; programmable as power, mute, talkback or none (off) function, Side panel membrane switches with LCD interface for power on/off and all setup and configuration controls
Audio Input Jack: Switchcraft 5-pin locking (TA5F)
Antenna: Galvanized steel, flexible wire
Battery: Two AA; alkaline, lithium, NiMH rechargeable
Battery Life: Duracell Quantum: 4.75 hours, Eneloop 2400 mAH NiMH: 5.5 hours
Weight: 5.8 ounces (141 grams), including lithium AA batteries and wire belt clip
Dimensions: 3.2 x 2.4 x .9 in. (81 x 61 x 20 mm)
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