1. Infrared Interactive Whiteboard can be touched by finger
2. With wired Speaker and wireless micphone, usful for teaching
1. Digital Frequency Modulated Modulation: Digital Frequency Modulated
2. Carrier frequency: 2.4GHz
3. Demodulation: GFSK digital modulation
4. Frequency Points:> 2000
5. Rate: 16bit ± 32kHz
6. Audio Response: 20Hz-20kHz
7. Receiving sensitivity:-85dBm, 45dB of adjacent channel rejection, 30dB of image rejection
8. Total Harmonic Distortion: <0.5%
9. SNR:> 95dB
10. Dynamic range: 90dB
11. Use range:> 150m
Transmitter Specifications
Frequency Range | 2.400GHz-2.483GHz |
Channel space | 6MHz |
Transmit power | +18 DBm |
Microphone input | 20mV |
Current | 150mA |
Frequency Response | 20Hz-20KHz |
SNR | 95dB |
Microphone audio input jack | 3.5mm |
Battery | polymer battery (1200Mah) |
Size | 70 * 40 * 20 (mm) |
Weight | 50g |
Antenna | Built-in |
Transmission range | 150M |
Signal separation | 80dB (typical) |
Distortion | <0.1% |
Receiver Specifications
Frequency Range | 2.400GHz-2.483GHz |
Receiver Sensitivity | -90dB |
Current | 100mA |
Frequency Response | 20Hz-20KHz |
SNR | 95dB |
Antenna | External |
Transmission range | 150M |
Signal separation | 80dB (typical) |
Distortion | <0.1% <0.1% |
