The entire process of professional performance microphones, from sound to signal, modulated into high-frequency radio waves, then transmitted, received, demodulated, amplified, and restored to sound, has many links. If one link is not paid attention to, it may still work, but stability and working range will be reduced a bit. If one more link is not paid attention to, it will be reduced a bit, and the range of use will also be reduced a bit. In this way, multiple links have vulnerabilities at the same time, and professional performance microphones are not disturbed. On the contrary, every step should pay attention to the greatly enhanced anti-interference ability and stability of professional performance microphones.
1. Precautions before using professional performance microphones
Operators should carefully inspect professional performance microphones before execution or use, connect the system correctly, set up antennas reasonably, and ensure that the microphones are in normal working condition. The main attention should be paid to the following points. To avoid the phenomenon of no sound in professional performance microphones during performance or use
(1) Check if the battery box is in good contact and if the battery is charged.
(2) When starting up, the receiver should be turned on first, and the RF head should be checked to determine the channel. In the absence of RF interference, it should be turned on again.
(3) Check the mute switch of the microphone to ensure that the wireless receiver and microphone are always working.
(4) Do not stack the receivers together to avoid mutual interference between them.
(5) After use, remove the power supply. Due to the fact that some microphones are touch switches, they are in standby mode. Otherwise, working with power will deplete the battery.
2. Precautions during use
(1) During the performance, pay attention to observing whether the RF signal indicator light is normal to prevent external wireless signal interference.
(2) When handing over microphones, avoid stacking multiple open wireless microphones together and avoid getting close to the receiving antenna to avoid intermodulation interference and affecting the use of wireless microphones.
(3) If there is noise in the sound, it may be due to the microphone head not being installed properly, or the sensitivity of the microphone head being set too high, or the frequency used may be interfered with. The main reasons are as follows.
There are interference sources on site (such as electromagnetic wave interference from mobile phones, walkie talkies, and cordless phones). When encountering this situation, first change the frequency of the receiver, find a frequency where the RF signal light of the receiver does not interfere, and perform frequency alignment; Especially when using multiple sets of wireless microphones, special attention should be paid to opening the frequency range.