With the popularity and widespread use of wireless microphones, how can we better play their superior role, and pay attention to the following problems in operation and use:
First, how to choose the battery of the wireless microphone transmitter machine to ensure that the system does not suffer from signal distortion and frequency interference, you must use a sufficient battery, if you have the conditions when purchasing, it is best to use alkaline 9V battery.
Second, how to prevent and avoid external interference to the wireless microphone Before purchasing the non-inverting unlimited microphone, you should first clear the transmission frequency of the local TV station. When purchasing, you should stagger the transmission frequency of the TV station to avoid interference, and purchase multiple wireless microphones. It should also be noted that the frequency of each system cannot be repeated to avoid mutual interference when the frequencies overlap.
Third, how to eliminate the wireless microphone is subject to external interference, non-frequency conversion of the diversity wireless microphone system when the external interference (refers to the transmitter power off, there are still RF, AF audio or DIVERSITY diversity on the receiver display to A, B If either or both of the LED displays have a signal display, it indicates that the receiver is in interference with external radio waves. The SQUEICH quieter can be adjusted to improve reception and reduce interference. The specific method is to adjust the antenna position, the transmitter is still off, the receiver volume output gain is turned off, and finally the SQUEICH static device is adjusted clockwise until all the interference signals disappear (the receiver except the power display) There is no signal display outside), then turn clockwise a little, be sure to use a non-inductive screwdriver when debugging.
Fourth, how to use the antenna correctly to ensure signal stability When using multiple sets of wireless microphone systems, if the same series of products, if possible, it is best to use the antenna splitter to minimize mutual interference between the antennas, such as no antenna allocation If the device is set, the antenna of the wireless microphone receiver should be adjusted to the optimal position, and then paralleled in a word, and each wireless microphone receiver should maintain an appropriate distance (the antennas on each receiver cannot touch each other), so that Each receiver has better receiving conditions to improve the directivity of the wireless receiver and avoid mutual interference between frequencies to obtain a better wireless signal. In addition, it is better to install a long antenna or a large-scale occasion. The source amplifies the antenna to improve reception.
5. How to correctly identify the wireless microphone in use while using more than two handheld wireless microphones of the same model at the same time, in order to prevent misoperation, each wireless microphone should be marked with a different color, and the mark should generally be attached to the handheld. The bottom position of the wireless microphone is not easy to block when holding the microphone. At the same time, the same color as the microphone should be marked or marked on the channel corresponding to the microphone on the mixer. In this way, even if the actor mistakenly takes the wireless microphone, the operator can correct it in time when the presenter introduces the actor or plays the song. In addition, you can also use the color microphone dust cover to mark, which not only eliminates the "gasp" sound and the "beep" sound, but also can be used as a microphone mark, which is really good for both. Especially when singing or re-singing, it is more important to adjust the volume and tone of each microphone according to the color code.
How to make the wireless microphone play the best effect For the wireless microphone to exert the best effect, the relationship between the transmitter output level gain, the receiver output gain and the mixer input gain must be handled, such as processing. Improper words may result in suppressed sound, no penetration or distortion of sound, or even excessive.
The correct method of operation is to connect the wireless microphone to receive power from the receiver and the audio system, and set the audio system level (0DB or +4DB), then turn the amplifier to the maximum output, and set the main output volume of the mixer at the same time. 0DB, turn on the wireless microphone transmitter power, then set the audio output gain of the wireless microphone transmitter to 70%~75%, and set the channel potentiometer of the wireless microphone input channel on the mixer to 0DB; finally Carefully adjust the mixer input gain and, if necessary, adjust the transmitter audio output gain to a small extent until the microphone is satisfied.
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