Vissonic Digital Wireless IR Simultaneous Interpretation Infrared Receivers Conference System

VISSonIC Digital IR Simultaneous Translation System Digital Infrared Receivers
Main FeaturesCompliant to IEC 61603-7 and IEC 60914
Compatible with any other IR simultaneous interpretation system compliant to IEC 61603-7
30 hours long use time after full charge.
Digital infrared processor with DQPSK digital modulation/demodulation technology
Transmitting in 2~8 MHz frequency band eliminates disturbance from high frequency lighting systems
Channel selection via up/down button, at most 4,8,16 or 32 channels available
LCD display with channel number, language name, battery and signal status indication
Number of available channels is always the same as the number of channels in use by the system, eliminating the need to scroll through unused channels
Adjustable volume
Unique 270º super wide reception angle, ensuring perfect sound quality even when casually placed
Audio signal automatically muted when signal is too low, ensuring that the user receives only high quality audio.
System Specifications
Modulation...............DQPSK, according to IEC 61603-7 Modulation frequencyCarriers 0 to 5...............2 to 6 MHz, according to IEC 61603-7Frequency response...............20 Hz to 10 kHz (-3dB) at standard quality20 Hz to 20 kHz (-3dB) at perfect qualityTHD at 1 KHz ...............<0.05%Isolation...............>80 dBDynamic range...............>80 dBWeighted SNR...............>80 dBAInput range...............-12 dBV ~ +12 dBV (adjustable)
ElectricalIR irradiance level...............4 mW/m2 per carrierAngle of sensitivity...............270ºHeadphone output level at 2.4 V 450 mVrms (speech at maximum volume, 32 Ohm
headphone)Headphone output freq. range...............20 Hz to 20 kHzHeadphone output impedance...............32 Ohm to 2 kOhmMax. SNR...............>80 dBASupply voltage...............3V to 4.2V,nominal 3.7 VHeadphone jack unplugged after 5 minutes...............0 mA Battery lifeRechargeable battery pack ...............30 hours
MechanicalDimensions (H x W x D) ...............159 x 49 x 23 mmWeight............... excluding battery 85 gincluding battery 128g (0.27 lb)Color...............black with silver
Application