cheap price dual-channel conversion fm wireless karaoke microphone
- Model
- SU-39
Item specifics
- Frequency range
- 740-790MHz
- Available Band Width
- 50MHz
- Channel number
- 200
- Channel spacing
- 250KHz
- Frequency stability
- ±0.005%
- Dynamic range
- 100dB
Review
Description
Microphone use two AA batteries, continued up to 10-15 hours.
Double Conversion Super Heterodyne, with a high receiver sensitivity.
Infrared frequency, automatic synchronization lock the transmitter frequency.
Receiver automatically scans and locks the current environment is best to use free channels.
| System | |
| Frequency range | 740-790MHz |
| Modulation Mode | Broadband FM |
| Available Band Width | 50MHz |
| Channel number | 200 |
| Channel spacing | 250KHz |
| Frequency stability | ±0.005% |
| Dynamic range | 100dB |
| Peak deviation | ±45KHz |
| Audio response | 80Hz-18KHz(±3dB) |
| Comprehensive SNR | ＞105dB |
| Comprehensive Distortion | ≤0.5% |
| Operating Temperature | -10℃+40℃ |
| RECEIVER | |
| Receive mode | Double Conversion Super Heterodyne |
| Intermediate frequency | The first medium frequency:100MHz The second medium frequency:10.7MHz |
| Wireless interface | BNC/500Ω |
| Sensitivity | 12dB u V（80 dBS/N） |
| Spurious rejection | ≥75dB |
| Sensitivity adjustment range | 12-32dBV |
| Maximum output level | +10dBV |
| TRANSMITTER | |
| Output power | High:30mW；Low：3mW |
| Spurious rejection | -60dB |
| Voltage | Two AA batteries |
| Current utility time | High:＞10 hours Low:＞15 hours |
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