| Type: | Simultaneous Interpretation System |
|---|---|
| Video: | Without Video |
| Composition: | Regulator |
| Communication: | Wireless |
| Pointing Feature: | Cardioid |
| Color: | Black |
| Customization: |
|---|
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These ergonomically designed pocket receivers incorporate the latest electronics technology. VIS-VLI703A series of IR receivers, which can receive up to 32 language channels and is equipped with channel selector, volume control, power switch, Ø 3.5 mm stereo earphone jack. A LCD displays channel number with language name, received signal intensity, battery capacity and volume. The pocket receivers can be used for both language and music distribution.
Order Information:
VIS-VLI703A-4 4 Channels digital infrared receiver
VIS-VLI703A-8 8 Channels digital infrared receiver
VIS-VLI703A-16 16 Channels digital infrared receiver
VIS-VLI703A-32 32 Channels digital infrared receiver
1.In accordance with IEC 61603-7 and IEC 60914.
2.Be compatible with the use of With the IEC 61603-7 protocols like Bosch.
3.Full digital DQPSK demodulation technology.
4.The high frequency (2-6MHz, IEC61603 BAND IV), is not affected by the high frequency driving light interference.
5.Button type channel selection, can receive 8/16 audio channels.
6.6Status indication of channel number of large screen LCD display, battery power and signal.
Be free to adjust the volume size.
7.No noise. When the signal is too low, the signal is automatically mute, ensure that users receive only high quality signal.
8.Appearance design is exquisite, wear-resistant, the receiver can be hung on the chest, also can be placed in the pocket of a jacket, flexible and convenient use.
9.Without the seat limit, representatives can arbitrarily walk in the signal transmission range.
10.In the effective range of the infrared radiation, increasing the number of receiving unit is not restricted.
11.If the receiver can not receive the signal for 5 minutes, the earphones shuts off automatically after being plugged .
Controls and Indicators
LCD displays channel number, language name, battery capacity, signal intensity and volume Power switch
Channel selector buttons
Volume control buttons
Interconnections
Ø 3.5 mm stereo earphone jack
Charging contacts
Technical Specifications
System Specifications
Modulation...............DQPSK, according to IEC 61603-7 Modulation frequency
Carriers 0 to 5...............2 to 6 MHz, according to IEC 61603-7
Frequency response...............20 Hz to 10 kHz (-3dB) at standard quality;
20 Hz to 20 kHz (-3dB) at perfect quality
THD at 1 KHz ...............<0.05%
Isolation...............>80 dB
Dynamic range...............>80 dB
Weighted SNR...............>80 dBA
Input range...............-12 dBV ~ +12 dBV (adjustable)
Electrical
IR irradiance level...............4 mW/m2 per carrier
Angle of sensitivity...............270º
Headphone output level at 2.4 V 450 mVrms (speech at maximum volume, 32 Ohm headphone)
Headphone output freq. range...............20 Hz to 20 kHz
Headphone output impedance...............32 Ohm to 2 kOhm
Max. SNR...............>80 dBA
Supply voltage...............3V to 4.2V,nominal 3.7 V
Headphone jack unplugged after 5 minutes...............0 mA Battery life
Rechargeable battery pack ...............24 hours
Mechanical
Dimensions (H x W x D) ...............159 x 49 x 23 mm
Weight............... excluding battery 85 g
including battery 128g (0.27 lb)
Color...............black with silver
Suppliers with verified business licenses
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