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SI-H71012 发射主机  
SI-H71012 IR Transmission main unit
Description ：
The SYS2000 fits seamlessly in the chain which starts with congress Systems and continues through interpreters. With SYS2000 taking care of language distribution, you know that Interpretations will always arrive in perfect condition. This system is ideal for use in business and government conferences, international conventions and other multilingual applications, offering simultaneous interpretation and wireless audio distribution for up to 12 different languages plus the floor language using state-of-the-art infrared transmission technology. It complies with the IEC industry standards, operating in the higher frequency band to avoid lighting interference.
 Characteristics：
  • High security, prevent external interference.
  • Suitable for different conference hall
  • Automatic level control function (ALC).
  • No disturb under daylight lamp
  • Easy to operate and save in project cost
  • With the most advanced technology
  • Elegant configuration in accordance to ergonomics
  • Input channel direct function
  • Has 12CH interpreter voice for record
  • PB test and display function
  • Installed in a 19-inch frame
 Technology parameters：
 Modulation mode: FM
Frequency synthesis: digital PLL
Frequency band: 1.7 - 4.0MHz
Frequency response: 100Hz-14kHz
Frequency stability: 10ppm
Pre-emphasis: 75 uS
Distortion at 1 kHz: <0.5%
Channel separation: >70dB
RF output power level: 700mV
RF output impedance: 50 ohms
Input impedance: 18k ohms
Max. input power level: 2V
AGC range: 30dB
S/N ratio: >75dB
Power consumption: 40W
Operating voltage: 230V/50Hz
 System connection diagram ：
SI-H71012 发射主机
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