1. Simply adjust the potentiometer on the microphone circuit board.
You can't speak clearly if you can't see things
Generally, the top one should not be adjusted to the maximum volume (maximum volume).
2. There are several volume adjustment buttons
To coordinate with each other, generally do not adjust. at maximum volume
3. You have more time at home. Try it
Hope this helps after writing so much
1. . The system itself is not compatible
Cause: When using a wireless microphone, if the MHz gap between the intermodulation signal and the operating frequency of the device is insufficient, it becomes difficult for the receiver to pick up the signal from. issuer. Typical phenomena are crosstalk between systems and frequent signal loss. or excessive noise and distortion.
Solution: To avoida intermodulation distortion, choose a calculated compatible frequency. For example, when using just 8 wireless microphones together, thousands of calculations are made to ensure compatibility between microphones.
2. Interference from other sources such as TV channels
Cause: Wireless microphones are also interfered with by other signal sources sent from the same spectrum. The most common are usually television stations, and FCC rules require that users of wireless microphones avoid using frequencies occupied by broadcast stations in the same geographic area.
Solution: Indoors, avoid interference from TV stations 40 to 50 miles away. Outdoor work should be kept within a 50-60 mile radius. The appropriate frequency for wireless microphones should be determined by the location et is generally defined. determined by the equipment manufacturer. Inform users of different usage frequencies in different cities.
3. Transmitter battery voltage is insufficient
Cause: Most wireless system manufacturers specify alkaline or disposable lithium batteries because their output voltage is constant throughout the operating time. battery life. Most transmitters experience acoustic signal distortion or signal loss at low voltages. Most rechargeable batteries provide 20% less voltage than disposable batteries, even when fully charged.
Solution: To troubleshoot battery issues, the transmitter battery output voltage requirements should always be carefully compared to ensure battery durability throughout operation. Rechargeable lithium-ion and alkaline batteries generally providecontinuous operation. NiMH and NiCd batteries only last a few hours.
Detailed information:
No sound when running frequency Note:
You just need to connect the negative pole of the 9V battery to the battery box so that the transmitting antenna of the wireless microphone can be extended through the battery box, which can increase the transmission distance and prevent frequency interruption and operation.
Connect the negative end of the 9V battery holder of the wireless microphone and wind it into a dense spiral with enameled wire, then attach it to the back of the tab on the back of the microphone wireless. The V section is longer (2.5mm in diameter and rolled all the way to the end then back) (starting point), the U section is shorter (about 4MM in diameter and flattened to the end) .
Those who have the practical abilityue to disassemble wireless microphones. Remove more than two inches from the tail to expose more than half an inch of the circuit board. Find the location of the emitter tube and solder it to a 1P capacitor (or a few P capacitors and the smallest capacitor. Wrap the enamel). dense spiral wire and fix it in the rear slot of the wireless microphone. The outer diameter of the spiral is approximately smaller than the width of the groove, and is flattened and fixed in the groove.
Note: Wireless microphones using AA batteries are not suitable for this method, because wireless microphones using AA batteries already use the battery case.
A pre-emphasis device is added to the transmitter, and a de-emphasis device is added to the receiver to improve the signal-to-noise ratio of the signal.
The receiver compressor and expander in the transmitter increases the dynamic range by more than 100 dB. This makes theVery high volume adjustment. If the audio level is too low, it will produce a clicking sound; if it is too high it can result in a cut signal.
For best sound quality, the transmitter's input gain should be adjusted so that it is fully modulated at maximum volume, but without distortion.
Reference materials:
Baidu Encyclopedia-Wireless Microphone