How to choose a good wireless microphone?

　　A,Why Wireless microphone frequency

　　One reason: the launch power is less than 50 milliwatts (state regulations), while the radio is more than ten thousand watts.

　　Two reasons: the external signal interference and its own signal reflection signal interference, as shown: wireless microphone direct signal is A, when he is reflected by the signal B and outside interference signal C, will be out of frequency.

　　Second, to solve the frequency of the method:

　　1, choose to launch a larger power, as long as no more than 50 milliwatts is not illegal.

　　2, the choice of dual-antenna above the receiving method: an antenna interference and there is another antenna to receive, that diversity reception technology.

　　BY-M1 Omni Directional Lavalier Microphone

　　BOYA BY-M1 is an omni directional lavalier microphone, perfect for video use, designed for Smartphones, DSLR, Camcorders ,Audio recorders, PC etc. The lavalier microphone features an Omni pickup pattern, for full, 360-degree coverage. An integrated 6-meter (20”) cable with 3.5mm 4-pole gold plug, can connect directly to Smartphones, most of cameras.

　　Third, how to choose a good diversity receiver wireless microphone.

　　1, diversity reception and non-diversity reception of the discrimination method:

　　Open the dual-channel receiver, if you unplug the left antenna, holding the left channel microphone to five meters away there is no signal is non-diversity; the contrary is diversity.

　　2, the type of diversity reception: antenna diversity reception and true diversity reception.

　　(1) Antenna Diversity Reception: The antenna signal is strong, and the antenna receives the signal. However, there will be a short period of antenna frequency conversion, such as the issue of "pop" "pop" noise.

　　(2) true diversity reception: two antennas are to receive and demodulate the signal, then select a good audio signal to use.

　　So, the most stable receiving system is: true diversity receiver wireless microphone !!!

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