1. How to choose the battery of the wireless microphone transmitter

In order to ensure that signal distortion and frequency interference will not occur during the normal operation of the system, it is necessary to use a battery with sufficient energy. It is best to use an alkaline 9V battery if conditions permit.

Second, how to avoid and prevent the outside world from interfering with wireless microphones

Before purchasing a non-conversion wireless microphone, you should first find out the transmission frequency of the local TV station. When purchasing, you should stagger the transmission frequency of the TV station to avoid interference. When purchasing multiple wireless microphone systems, you should also pay attention that the frequencies of each system cannot be repeated. To prevent mutual interference when the frequencies are stacked.

3. How to Eliminate the External Interference of Wireless Microphones

When the non-converter diversity wireless microphone system is subjected to external interference (meaning that when the transmitter power is turned off, there is still RF radio frequency, AF audio or DIVERSITY diversity on the receiver display to either or both of the LEDs of A and B). If there is a signal on the display, it indicates that the receiver is in the interference of external radio waves), and the SQUEICH silencer can be adjusted to improve reception and reduce interference. The specific method is to adjust the antenna position, the transmitter is still in the off state, turn off the volume output gain of the receiver, and finally adjust the SQUEICH silencer clockwise until all interference signals disappear (at this time, the receiver power supply is displayed). There is no signal outside), then turn it a little clockwise, and be sure to use a non-inductive screwdriver when debugging.

4. How to use the antenna correctly to ensure signal stability

When using multiple sets of wireless microphone systems, if it is the same series of products, it is best to use an antenna splitter if possible to minimize the mutual interference between the antennas. If there is no antenna splitter, the wireless microphone should be accepted first. Adjust the antenna of the receiver to the best position, and then lay it out in parallel, and maintain an appropriate distance between each wireless microphone receiver (the antennas on each receiver must not touch each other), so that each receiver has a good performance. In order to improve the directivity of the wireless receiver, prevent mutual interference between frequencies, and obtain better wireless signals. In addition, it is best to install extended antennas or active amplification antennas for performances in large venues to improve the reception effect.

Five, how to correctly identify the wireless microphone in use

When using more than 2 handheld wireless microphones of the same type at the same time in the performance, in order to avoid misoperation, each wireless microphone should be marked with a different color, and the mark should generally be attached to the bottom of the handheld wireless microphone. It is not easy to hold the microphone. At the same time, the channel corresponding to the microphone on the mixer should also be affixed with a logo or mark of the same color as the microphone. In this way, even if an actor picks up the wireless microphone by mistake, the operator can correct it in time when the show host introduces the actor or plays (plays) the front of the song. In addition, the color microphone dust cover can also be used as a logo, which can not only eliminate the "gasp" sound and "pop" sound, but also can be used as a microphone logo, which really kills two birds with one stone. Especially when duet or duet, it is more important to be able to adjust the volume and tone of each microphone in time according to the color scale.