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Lectrosonics SRc Block Camera Slot Dual UHF Receiver, 941-960 MHz.
This design includes two separate receivers built into a single, ultra compact housing with adapters for use in video camera receiver slots and multicouplers, and several adapters provide stand-alone use. Digital Hybrid Wireless® technology provides superb, compandorfree
audio quality and compatibility with other wireless systems.
DSP compatibility modes allow the receivers to be used with Lectrosonics wireless and IFB systems. 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 displays a histogram of RF activity across the band. Areas with little or no RF activity are easily recognizable.
The two internal receivers can be operated separately, each with a separate audio channel using switching, antenna combining diversity, or in tandem with ratio diversity reception and a single audio channel. The audio outputs of the receivers can be mixed inside the receivers,
or left separated for discrete recording tracks or external mixing. The receivers are powered from an external source of 7 to 18 VDC.
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: 25 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
Image and spurious rejection: 85 dB
Third order intercept: 0 dBm
Diversity methods: • SmartDiversityTM phased antenna
combining with two separate audio
channels
• Ratio Diversity using both receivers for a
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 and multicoupler interfaces
• Dual TA3 male (mini XLR) balanced output adapter
• Digital/Analog output and power adapter 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 (bal);
1% THD
Phase invert: Audio output phase normal or inverted
Compatibility modes: • NU HYBR (new) ETSI compliant Digital
Hybrid Wireless®
• IFB IFB transmitters in IFB mode SmartNR (noise reduction): OFF, NORMAL, FULL modes (available in NU HYBR mode only)
Audio Performance (overall system):
Frequency Response: 32 Hz to 20 kHz (+/- 1dB)
THD: 0.2% (typ.) 100 Hz to 20 kHz
Front Panel Controls/Indicators: • Sealed panel with membrane
switches
• LCD monitors pilot tone; antenna
phase, receiver battery level;
transmitter battery
status; audio level, RF level
External DC input: Rear panel locking coaxial connector
Powering and current consumption: Min. 7 VDC; max. 18 VDC; 2.2 W
• 125 mA at 18 VDC
• 180 mA at 12 VDC
• 295 mA at 7 VDC
Transmitter battery type Selection: AA alkaline, AA lithium, timer
Transmitter battery level tracking: LCD display with battery icon or timer
readout
Operating temperature: -20°C to +50°C
Weight w/ SREXT adapter: • SRc: 195 grams (7 ozs.)
Dimensions w/ SREXT adapter: 2.92” wide x 1.22” high x 4.93” deep
(74 mm x 31 mm x 125 mm)
Specifications subject to change without notice
Lectrosonics SRc Technical Data
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