Two-to-One Anti-Interference Solution

This solution consists of two microphone panels and one receiver module, with the two microphones requiring pairing with the receiver module for operation. The receiver module can separate the signals from the two microphones or output them as a combined signal. This solution has been widely utilized in tour buses for amplification, effectively avoiding WIFI hotspot interference inside the buses.

  • 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 ItemsTransmission ModuleReception Module

Power Supply Voltage

3.3V-5V

3.3V-5V

Current Consumption

<80mA        

<50mA        

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

    Pairing is required only once between the transmitter and receiver during the initial setup. Afterward, simply power on to use

  • Volume Adjustment

    Adjustable pre-amplification for the transmitting module, with a maximum amplification of 50dB

  • Mute

    The system features mute control functionality

  • Signal Output

    Merge output for two microphones; separate individual output for each microphone

  • Data Transmission

    Simultaneously supports both audio and data transmission (e.g., transmitting various control commands)

  • Channel Switching

    Seamless channel switching is available when wireless transmission is affected by interference

Quick guide download