One-to-Many Anti-Interference Solution
This solution consists of one transmitter module and multiple receiver modules, with each receiver module requiring pairing with the transmitter module for operation. The wireless transmission utilizes anti-WIFI interference technology, making it suitable for long-distance audio transmission under WIFI coverage. This solution has been widely applied in scenarios such as tour guiding, business meetings, wireless teaching amplification, and long-distance monitoring.
Automatic channel allocation
Pre-set 14 channels for one-to-many and multiple simultaneous use
Key Parameters
Sampling rate: 16K, Resolution: 16 bits
Audio algorithm
Utilizes A-LAW
Communication protocol
Uses A-FFC
Strong anti-interference capability
Digital processing for audio transmission
Automatic mute
In cases of poor channel quality and high error rates
Channel switching follows
Transmission channel switches, and reception follows automatically
Transmission Distance
Wireless transmission distance of over 50 meters in open areas
Quick guide download
| Specification Items | Transmission Module | Reception Module |
|---|---|---|
Power Supply Voltage | 3.3V-5V | 3.3V-5V |
Current Consumption | <50mA | <20mA |
Operating Temperature | 0 ～ +70 ℃ | 0 ～ +70 ℃ |
Frequency Range | 2400～2483.5MHz | 2400～2483.5MHz |
Number of Channels | 14 | 14 |
Modulation Type | GFSK | GFSK |
Transmission Power | 15dBM | |
Receiver Sensitivity | -85dBm(Min.) | |
Output Impedance | 10K | |
Output Level | 2.5Vp-p(Max) | |
Audio Latency | <5ms | <5ms |
Dynamic Range @1kHz | 81dB | 81dB |
Total Harmonic Distortion | 0.1% | 0.1% |
Quick guide download
Pairing is required only once between the transmitter and receiver during the initial setup. Afterward, simply power on to use
Microphone: The interface can provide power, making it convenient for condenser microphones to use Audio Left and Right Channels: Built-in operational amplifier circuit for merging channels; wireless transmission is monaural audio. The microphone and audio input signals can be merged for transmission or selected for separate transmission
Stereo output, built-in headphone amplifier function, adjustable volume
Adjustable range for pre-amplification before transmission; adjustable range for output amplification during reception.
Simultaneously supports both audio and data transmission (e.g., transmitting various control commands)
Seamless channel switching is available when wireless transmission is affected by interference
Quick guide download
