College】 【weak UHF wireless microphone and VHF --- Power By 【China】 weak home network..

<br> for wireless microphone both of these two frequencies the merits, has its own shortcomings. .This is a band of users, frequency of physical characteristics, and adjust the limits of the band's decision. .<BR> <BR> The following are several aspects of UHF than VHF: <BR> 1, UHF VHF frequency band is not "crowded." .<BR> 2, flexible UHF frequencies using a broader scope. .<BR> 3, UHF feature can provide more compatible system. .[Eg, Shure LX and SC (VHF band) system is compatible only provide 12 channels, while Shure's UHF-band system provides more than 100 compatible channels. .] <BR> 4, UHF system, the power output of more than VHF, frequency shift wider dynamic range and better signal to noise ratio is better than VHF. .<BR> <BR> VHF than UHF in several aspects: <BR> 1, VHF system cheaper. .<BR> 2, VHF transmit power in a designated, the transmission range greater. .<BR> 3, VHF signal is transmitted, even through non-metallic substances, as well. .VHF's longer wavelength, can not easily be absorbed by the body. .<BR>.