How do wireless microphones work? |boya-mic.com

　　Wireless microphone, also known as wireless microphone, consists of two parts, transmitter and receiver, commonly referred to as a wireless microphone system. The transmitter is battery powered and the microphone transforms the sound into an audio electrical signal that, after being processed by internal circuitry, emits radio waves containing audio information into the surrounding space. The receiver is generally powered by the mains. The receiving antenna receives the radio waves from the transmitter. After being processed by the internal circuit, the receiver extracts the audio signal and sends it to the sound reinforcement system through the output signal line to complete the wireless transmission of the audio signal. A receiver usually can contain 1 set, 2 sets or 4 sets of receiving circuits, respectively, to receive 1, 2 or 4 Wireless microphone signal, of which two are the most common.
　　After years of development, UHF wireless microphone technology has been quite mature, updated to iterate out many types of products, such as frequency multiplier, multiplier diversity, adjustable multi-channel (PLL), adjustable multi-channel antenna diversity, adjustable multi-channel Dual-tuned diversity products.
Wireless microphone
One adjustable multi-channel (PLL) products due to complete functions, the price is relatively low, is the mainstream products on the market. These products are based on phase-locked loop (PLL) technology with multiple user-adjustable channels. Users of such products, if found to encounter external interference, you can change the system's working channel to avoid interference; In addition, when using multiple systems in the same occasion, you can choose to interfere with each other channels to achieve the same time the goal of.
　　The current diversity is mainly used in some high-end products. The so-called diversity, is the corresponding microphone, the receiver has two sets of receiver circuit, through the two antennas, while receiving the microphone signal, and by the internal control circuit to detect and compare the signal is strong enough, the fixed Use one of the antennas and switch the switch to the other antenna automatically if it detects a weak signal.

　　This approach can reduce the close-up operation of the dead point, expand the effective operating distance, and effectively improve the receiving effect. Because it corresponds to the same wireless microphone, you need two sets of the same receiving circuit, so the cost is higher, mainly for demanding professional stage performance.

BOYA wireless microphone
BY-WM4 Wireless Microphone
BY-WM5 Wireless Microphone
Shotgun microphone system
Stereo microphone system
Lavalier microphone
BY-M4C Lavalier Microphone
BY-M4OD Lavalier Microphone
ENG/broadcast microphone
Conference microphone system


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