
Two-to-one anti-jamming scheme
This solution is composed of two microphone boards and a receiving module, and the two microphones must be paired with the receiving module before they can be used. The receiving module can separate or combine the two microphone signals. This solution has been widely used in the sound reinforcement of tourist buses, which can effectively avoid the interference of WIFI hotspots in buses.
自动分配信道
预置信道数14个,一发多收,多套同时使用
关键参数
采样率16K,分辨率16bit
音频算法
采用A-LAW
通信协议
采用A-FFC
抗干扰性
音频传输采用数字化处理
自动静音
信道质量不好,误码率高时
信道切换跟随
发射切换信道,接收自动跟随
传输距离
无线传输距离空旷地带 50米以上
规格项目 | 发射模块 | 接收模块 |
---|
供电电压 | 3.3V-5V | 3.3V-5V |
消耗电流 | <80mA | <50mA |
工作温度 | 0 ~ +70 ℃ | 0 ~ +70 ℃ |
频率范围 | 2400~2483.5MHz | 2400~2483.5MHz |
信道数目 | 14 | 14 |
调制方式 | GFSK | GFSK |
发射功率 | 15dBM |
|
接收灵敏度 |
| -85dBm(Min.) |
输出阻抗 |
| 10K |
输出电平 |
| 2.5Vp-p(Max) |
音频时延 | <5ms | <5ms |
动态范围@1kHz | 81dB | 81dB |
失真度THD | 0.1% | 0.1% |