Transmitter to receiver channel
The transmitter's signal is not just transmitted to the direct path, but radiated in all directions. This will cause the walls, floor and ceiling to reflect sound, and the reflected signal will overlap with the directly transmitted signal.
For a single-antenna receiver, a so-called non-diversity system, the direct and reflected signals it receives are usually reduced to each other, causing leakage. A diversity receiver with two antennas is better able to handle long distance and channel intensive applications. Reliable signal settings even when the receiver and transmitter are not directly exposed.
Correct placement of the receiver
The receiver is not only subject to interference from external radio frequency sources. So, if possible, keep the receiver away from CD/DAT/MD players, computers/notebooks, and special effects devices, even a few feet (or a few seats).
Place the antenna correctly
Ideally, the antenna should be placed above the viewer or other obstacles to allow the transmitter and receiver to "see" each other. If the receiver is mounted on a rack, the antenna must be placed on the front panel or extended from the top of the rack. The antenna of the diversity receiver should be at a 45 degree angle to maximize the distance at the tip of the antenna. For the best diversity, the antenna spacing should be 40 cm (one wavelength), less than this distance will affect the effect.
Use of antenna splitter
If you need to use multiple wireless systems at the same time and need to move from one location to another, it is more convenient to install the receiver in a rack. But this will reduce the performance of the wireless system because the antennas are too close to each other.
More advanced wireless systems use a detachable antenna so that the antenna splitter can be used. The splitter improves the reliability of the radio frequency by providing signals to a pair of "primary" antennas to serve all receivers. If four or more receivers are installed in the rack at the same time, we recommend using an antenna splitter to significantly improve performance.
power supply
Unlike most wired microphones, all wireless transmitters require a battery. Therefore, the battery is very important and needs constant replacement and regular inspection.
A rechargeable battery can be used. The higher the charge battery, the longer the battery will be used.
The 9 volt alkaline battery has twice the life. If the usage time is less than 3 hours, a 9 volt rechargeable battery can also be used.
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Yangzhou Heli Photoelectric Co., Ltd. , https://www.heli-eee.com