For example, if there is noise in the sound of uhf ktv wireless microphone AY-URX7Ⅱ, it may be that the microphone head is not installed in place, or the sensitivity of the microphone head is set too high, or the frequency point used may be interfered, mainly due to the following reasons.

There are interference sources (such as mobile phones, walkie-talkies, cordless phones, etc.) in the venue. In this case, you can try a different frequency. When changing a new frequency, it is best to change the frequency of the receiver first, and find the frequency of the receiver. The frequency of the RF signal light without interference, and then change the frequency of the transmitter. Poor reception conditions of the venue (for example, there are pillars blocking the venue, or there is reflection from metal equipment and glass in the venue, the sound control room is far away from the venue and there is a wall blocking or turning, etc.), which will affect the uhf ktv wireless microphone AY-URX7Ⅱ signal. normal reception. The problem can usually be solved in the following ways:

① Try to use a diversity wireless system (ie, one microphone, two antennas), because the receiving range of the two antennas is large.

② You can change the direction, angle, etc. of the antenna to improve the reception effect.

③ If the receiving environment is too bad, such as the sound control room is not in the venue, the problem can be solved by simply extending the antenna. Emergency method: take a video cable 10-15 m, connect it to the where the signal is received.