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Wireless conference system is the conference system that the communication between conference microphones and system control unit does not depend on by various cables but by modulating wireless signal. The development history of wireless conference system is as below:
Firstly, the communication system is based on the digital modulating signal based on infrared ray,which is evloved from IR interpreation system.Secondly, the technique applied in wireless conference system is 2.4 GHz modulating signal, which support more stable communication and avoid environment interference cased by buildings, sun lights and others.
As more digital appliances based 2.4GHz frequency band, it could be easy to interfer the communication of 2.4G wireless conference system. Consequently, 5.8 GHz frequency band is applied in some wireless conference systems. In some cases, there are dual-band conference system that could change the communication frequency band in according to the usage of the frequency points.