IR simultaneous interpretation system

Detailed Product Description

infrared simultaneous interpretation system

IR transmitter main unit STC-641,STC-661

• High security
• Be suitable be used in all kinds of meeting
• Light immunity
• Easy to install, save the project cost
• Frequency synthesis: digital PLL
• Smart design
• With six independent outputs for sound recording
• Transmits up to six audio channels to different carrier frequencies
• It features built-in IR test diodes for testing of receivers
• LED audio level indicators
• 19" rack mountable
• Modulation: FM
• 6 individual frequencies output socket can be connected with infrared and wireless language division system

IR transmitter unit STC-642,STC-662

• Maximum area of coverage: 40m(25w)/20m(15w)
• Radiate and distribute up to many channels of audio signal throughout the conference venue
• Easy to be chained together to expand coverage, with15 watt and 25 watt available to suit venues of different sizes
• Can be mounted on the ceiling and wall or on optional floor and tabletop stand
• Transmit signal adjust switch

IR receiver unit STC-643,STC-663

• Equipped with lightweight single earphone for relieving ear pressure and for better hygiene
• 6 channels of languages can be selected
• Each channel works independently
• Volume level can be adjusted through a volume control for comfortable listening.
• Easy to be used and be took
• Smart design
• AAA batteries or two rechargeable batteries, can work for 40 hours
• The receiver can be hung or be put into the pocket
• Any number of receivers can be used in an installation
• With the wireless pocket receivers, the delegates can enjoy complete freedom to move around.

IR interpreter STC-666F

• Digitally-controlled
• Comfort-fit headband and closed-ear design
• Automatic acoustic feedback prevention
• An automatic channel interlocking function prevents them from using the same output channel.  
• COUGH CUT for muting microphone
• SLOW indication to floor speaker
• Auto relay function enables them to work from an active channel other than the floor, and to provide relay interpretation in case they are unfamiliar with the floor language and unable to interpret it
• Can use with the infrared language division system
• One interpretation unit can be used for two interpreters
• Interpreters may quickly switch between the floor language and the channel set

2.5 Technical data

	IR transmitter main unit	IR receiver	Transmitter unit
FM modulation	FM/ PLL	FM/PLL	/
Sub-carrier-PPM spectrum	2.0~6.0MHz	2.0~6.0MHz	/
Audio frequency	100~14KHz	100~14KHz	/
T.H.D	<0.5%	<1%	/
S/N Radio	>70dB	>55dB	/
Frequency	/	/	2.0~6.0 MHz
Output impedance	/	/	50Ohm
Input frequency	/	/	100-2000Mv
RF output level	700Mv	/	110V/220VAC
RF output impedance	50Ohm	/
Input impedance	18KOhm	/
Maximum input level	7.5V	/
AGC range	30dB	/	50%/100%
Frequency input/output	BNC socket×2	/	/
Power Requirement	AC110-240	2.3V-3.6V	/
Power Consumption	40W	50mW	/
Dimension	/	/	211×450×82mm
Weight	/	/	3.8Kg
Indicator	Level indicator	/	/
Frequency stability	10PPM	10PPM	/

 

  Instruction of installation

Infrared ray can be provided with direction line and invisible light .The sensitivity is the best when the receiver direct to the IR transimit unit. The receiver angle can be plane or uprightness ±45º, the receiver direction line is the best during this scope.

IR transmitter signal is an invisible light, it can be direct or reflect and than make the signal transfer to the IR receiver unit , so , it should be consider this factor if install the IR transmitter unit .The IR receiver through the direct signal is the best . but the signal through the reflect direction can also be improved .In a huge conference, the front audience will cover the behind audiences receiver signal , then it will impact the receiver effect. So, if the IR transmitter is installed at a higher place, it can according to the practical situation and then adopt on the wall or bracket type