The operator should carefully check the uhf wireless microphone AY-3200 before the performance, connect the system correctly, set up the antenna reasonably, and ensure that the microphone is in a normal working state, mainly pay attention to the following points. In order to avoid the phenomenon of no sound from the uhf wireless microphone AY-3200 during the performance.

(1) Check whether the battery box is in good contact and whether the battery is charged.

(2) Turn on the receiver first, check the RF meter to make sure there is no RF interference in this channel, and then turn on the transmitter.

(3) Check the uhf wireless microphone AY-3200 mute switch to ensure that the wireless transmitter and microphone are always in working condition.

(4) Hang the bodypack transmitter antenna down on the belt to avoid sagging and bending due to gravity, which will affect the launch effect. Do not let the bodypack transmitter come into direct contact with human skin, because actors are prone to sweating during performances, which will affect the normal operation of electronic equipment.

(5) To avoid carrier frequency deviation, please do not directly contact the bodypack transmitter with metal objects, such as keys, belt buckles, etc.

(6) Do not stack receivers together to avoid mutual interference between receivers.