The DSR4 digital receiver provides the highest level of RF and audio performance available with a versatile feature set in a compact design for field and location production. Settings can be made from the front panel with tactile buttons and color LCD interface, making the unit ideal for use in portable bag systems and on sound carts. An RF spectrum analyzer and SmartTune are built into the receiver to alleviate interference problems in an increasingly congested RF spectrum. The mechanical design of the receiver fits into the Super- Slot ecosystem and combines field-proven features developed over many years of experience in motion picture and television production. To decrease weight, the DSR4 provides a four channel receiver in one unit powered by external DC. The receiver is also equipped with an IR port for data transfer between units. The machined aluminum housing and panels are surfaced with a hardanodized finish with laser etched markings to withstand the rigors of field production.The RF gain stages in the front end use a newly developed design to provide low noise RF amplification, excellent sensitivity and extremely low susceptibility to intermodulation and de-sensitization.Main Features:Four independent channels, compact designTwo diversity options for maximum flexibility24 bit/48 kHz digital for flawless audioAES 256-bit, CTR mode encryption, with 4 different key policies availableHigh IP3 performance of +15 dBm for tough RF environmentsAnalog and AES3 digital audio outputsExternal DC powering options and USB input for firmware updates and data transferSpecifications:Frequency Selection Steps: 25 kHzFrequency Stability: 0.001 %Front end bandwidth: 5.5 MHz, @ -3 dBSensitivity:20 dB Sinad: 0.9 uV(-108 dBm), A weighted60 dB Quieting: 1.12 uV (-105 dBm), A weightedAM rejection: >60 dB, 2 uV to 1 VoltModulation acceptance: 85 kHzSpurious rejection: 85 dBThird order intercept: +15 dBmDiversity method:Antenna phase switching (4 channel operation)Vector diversity (2 channel operation)Antenna inputs: 50 Ohm; SMA female connectorsAudio output connectors:Interchangeable D connector adapters or camera slot interfacesDual TA5 male (mini XLR) balanced output adapterBattery sled adapters with TA5 male outputs.Front panel TA5 male for analog output channels 3 and 4.Audio Performance (overall system):Frequency Response: 25 Hz to 20 kHz (+0/-3 dB)THD: 0.2% (typical)Input Dynamic Range: 125 dB (with full Tx limiting)Overall Latency (time delay): 1.4 ms with digital source, <2.9 ms with Hybrid TXAudio Test Tone: 1 KHz, -50 to +7 dBu, <1%THDControls:Front Panel:Color LCD displayMenu/Sel, Pwr/Back, Up/Down Arrow ButtonsUSB PortIR PortRear Panel:Proprietary connector for audio/power accessory panels.External Power: Minimum 9 Volts to maximum 17 VDC 3.2 W; 170 mA at 12 VDCWeight: 408 grams (14.4 oz.) w/o audio adapterDimensions: 3.23 wide x 1.23 high x 5.50 deep 82 wide x 31 high x 140 deep mm