Audio tour guide system
2.4G portalbe tour guide system
Wireless tour guide sytsem
Specifications
1. Transmit frequency 2400-2480 MHz; Complete digital audio transmission.
2. Channel & Volume Display function. Channel 30 Max; 6-channel versions for Simultaneous Interpretation;
3. Sampling rate 64K; Frequency Response 20-20KHz, HDCD sound quality;
4. Shortest latency(<0.5ms), surround sound;
5. Ultra-low power consumption, 8hr. Work time for transmitter and 20hr. Continuous work time for receiver.
6. Rechargeable battery or dry battery 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 open 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
2.4G portalbe tour guide system
Wireless tour guide sytsem
Specifications
1. Transmit frequency 2400-2480 MHz; Complete digital audio transmission.
2. Channel & Volume Display function. Channel 30 Max; 6-channel versions for Simultaneous Interpretation;
3. Sampling rate 64K; Frequency Response 20-20KHz, HDCD sound quality;
4. Shortest latency(<0.5ms), surround sound;
5. Ultra-low power consumption, 8hr. Work time for transmitter and 20hr. Continuous work time for receiver.
6. Rechargeable battery or dry battery 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 open 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
| NO. | Description | Transmitter module | Receiver module |
| 1 | Work voltage | 3.6- 6V DC | 2.5 - 3.6V DC |
| 2 | Work electric current | Max 120mA | Max 35mA |
| 3 | Work temperature | -15 - +65 | -15 - +65 |
| 4 | Frequency response | 2400 - 2483 MHz | 2400 - 2483 MHz |
| 5 | Modulation | GFSK | |
| 6 | Baud rate | 2M bps | 2M bps |
| 7 | Channel space | 4MHz | 4MHz |
| 8 | Stabilization of frequency | +/-156KHz | +/-156KHz |
| 9 | Work frequency range | 2400 - 2483 MHz | 2400 - 2483 MHz |
| 10 | Work channel | 20 CH | 20 CH |
| 11 | Channel space of module | 4MHz | 4MHz |
| 12 | Output power | 0-20 dBm | |
| 13 | Receiver sensitivity | 90dBm | |
| 14 | Input power | Max 1.0Vrms | |
| 15 | Input impedance | 10k Ohm | |
| 16 | Input mode |
Two input modes: 1. Microphone 2. Stereo audio |
|
| 17 | Stereo output 1 | 30mW RL = 32Ω | |
| 18 | Stereo output 2 | 50mW RL = 16Ω | |
| 19 | Output impedance | 1k Ohm | |
| 20 | RF Distance | 100-150 meters in the open area under 20dBm | |
| 21 | Output input gain ratio | 1:1 | |
| 22 | Frequency response | 20 - 20000Hz ( +/1dB ) | |
| 23 | The latency time | < 0.5 ms | |
| 24 | Sampling ratio | 64kHz@16 bit*2 | |
| 25 | SNR | 95 dB | |
| 26 | Distortion | 0.8%@1kHz | |
| 27 | Dynamic range | 90dB | |
| 28 | Separation between the left and right track | 70 dB | |
