Wireless Microphones for ENG | boya-mic.com

  When using a Wireless Microphone, there is always the problem of interference between the systems themselves. Although each system has frequencies or intervals of several megahertz, Intermodulation Distortion (IMD) can still cause interference between microphones. If there is not enough space between the intermodulation signal and the device's operating frequency, it is difficult for the receiver to pick up the signal from the transmitter. Typical phenomena are crosstalk between systems, frequent signal loss or excessive noise and distortion.
  The minimum spacing between frequencies, depending on the design of the system receiver, may require an interval of 1 MHz from the nearest neighbor to the entry level receiver. The more expensive receivers usually have narrower adjustment "windows" that allow for a smaller intermodulation frequency separation between each system.
  In order to avoid intermodulation distortion, choose the calculated frequency of mutual compatibility. This requires a wealth of transmitter and receiver design knowledge that is often calculated by wireless system builders. For example, when only eight Wireless Microphone are used together, thousands of calculations are performed to ensure compatibility between the microphones. As a result, most manufacturers have released their system-compatible frequency list. In addition, software can be used to help users identify compatibility frequency under certain conditions.

  BY-WM4 Wireless Microphone
  The BOYA BY-WM4 is a 2.4 GHz wireless system, specially designed for iPhone, Ipad and most of Android devices, tablet, but also can work with DSLR camera, Camcorder, PC etc.


  To balance the maximum number of system devices with high performance, make sure that the compatibility level between frequencies is appropriate for the intended system. Keep at least 10 feet between transmitter and receiver antenna. If transmitter's RF output power is adjustable, use the lowest transmit power to cover the expected distance between transmitter and receiver.
  Wireless Microphone is also subject to interference from other sources of the same spectrum transmission. The most common is usually television stations, FCC rules require users of Wireless Microphone in the same geographical area to avoid the frequency of use of radio and television stations.
  Other wireless audio devices such as ear monitors, intercom systems, and non-wireless devices can also cause interference problems. Digital devices (CD players, computers, and digital audio processors) tend to emit strong RF noise and interference if installed in close proximity to a Wireless Microphone receiver. For transmitters, the most common sources of interference are the GSM mobile phones and presenters wearing PDAs.

BY-VM600 Shotgun Microphone
BY-VM190 Shotgun Microphone
BY-VM01 Condenser Mini Microphone
Stereo microphone system
Lavalier microphone
BY-LM400 Dual-Lavalier Microphone
BY-GM10 Lavalier Microphone
BY-M8C Lavalier Microphone
ENG/broadcast microphone
Conference microphone system
Smartphone microphone

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