How Do Wireless Microphones Work?

  The receiving antenna of the wireless microphone is one of the largest areas of misunderstanding. Antenna selection, layout, and cabling errors can result in short distances in the performance coverage area and low signal strength, resulting in frequent dropped calls. Modern diversity receivers deliver far better performance than individual antenna types, but to optimize system performance and reliability, the antenna selection and placement must be correct.


  To ensure good system diversity, the antenna space is guaranteed for at least one and a half wavelengths (about 9 inches 700MHz). The receiving antenna should be angled "V" to provide better signal pick-up performance when the transmitter is moved or placed at a different angle.

  BY-WM8 Dual Channel UHF Wireless Microphone System

  The BOYA BY-WM8 Dual-Channel UHF wireless system is a portable, camera-mountable wireless system for capturing audio with dual subjects. It can be used in several environments for video, field recording, interview, broadcast TV, and ENG applications.


  If the receiver is to be located far away from the performance area (such as in a device closet or a closed rack), install a half-wave antenna or a directional antenna remotely (preferably over the viewer) so that there is a clear Line of sight. Do not install ¼ shortwave antennas remotely because they use the receiver chassis as a ground antenna. The extra distance between the antennas does not significantly improve the diversity of the system, but may better cover a wider arena, church or conference room area. If the antenna is installed far from the stage, directional antennas can be used to improve signal reception by picking up more signals in that direction and reducing pick-up at other angles.

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