China Whisper Tour Guide\Wireless Audio Guide System\Radio Guide System

Wireless portable tour guide system \Raido guide system\Wireless radio guide system
Specifications


1. Transmit frequency 2400-2480 MHz; Complete digital audio transmission.
2. Channel & Volume Display function. Channel 40 Max; 6-channel versions for Simultaneous Interpretation;
3. Sampling rate 64K; Frequency Response 20-20KHz,HDCD sound quality;
4. Shortest latency(<0.5ms), surround lsound;
5. Ultra-low power consumption, 8hr.work time for transmitter and 20hr.continuous work time for receiver.
6. Rechargeable battery or dry lbattery can be used;
7. Small in size, easy to install, flexible in design land support customization;
8. Audio mute when no signal or weak signal existing; Changing channel automatically or manually is optional (confirm when ordering);
9. Transmit power 1MW-100MW as optional (Confirm when ordering. Default power is 100 MW and the maximum transmit distance is 180 meters in an lopen area)

Applications

· Travel & Tourism: Tourism, museums, galleries, business and tour guides to explain the Convention.
· VIP reception: the promotion of company's products, high-level exhibition, the Government, the reception of VIPs visited the factory, industrial tourism
·Teaching training: schools, training institutes, conference rooms, auditorium, classroom lectures, seminars and other learning activities, special job training

NO.DescriptionTransmitter moduleReceiver module1Work voltage3.6- 6V DC2.5 - 3.6V DC2Work electric currentMax 120mAMax 35mA3Work temperature-15 - +65-15 - +654Frequency response2400 - 2483 MHz2400 - 2483 MHz5ModulationGFSK 6Baud rate2M bps2M bps7Channel space4MHz4MHz8Stabilization of frequency+/-156KHz+/-156KHz9Work frequency range2400 - 2483 MHz2400 - 2483 MHz10Work channel20 CH20 CH11Channel space of module4MHz4MHz12Output power0-20 dBm 13Receiver sensitivity 90dBm14Input powerMax 1.0Vrms 15Input impedance10k Ohm 16Input modeTwo input modes:
1. Microphone
2. Stereo audio 17Stereo output 1 30mWRL = 32Ω18Stereo output 2 50mWRL = 16Ω19Output impedance 1k Ohm20RF Distance100-150 meters in the open area under 20dBm21Output input gain ratio1:122Frequency response20 - 20000Hz ( +/1dB )23The latency time< 0.5 ms24Sampling ratio64kHz@16 bit*225SNR95 dB26Distortion0.8%@1kHz27Dynamic range90dB28Separation between the left and right track70 dB