1 , in the use of wireless microphones and noise appear staccato main reasons :
Antennas at the receiver , in addition to receive signals emitted outside the direct waves and receives reflected by the surrounding environment, indirect wave , when the two opposite phase , the signal strength will cancel each other out , the day online low signal strength mute the receiver operating point , which produce the so-called " receiving dead " phenomenon , so the output of the receiver will be a short staccato or noise , when the signal strength is closer to mute action point, the greater the noise .
2 " automatic selection information " (True-Diversity) received principle and improvement staccato effect:
"Automatic selection information " is the use of two identical specifications receiver tuners and their respective antennas at different locations connected to receive the same signal wireless microphone transmitter , using fast comparator and the switching circuit, an automatic choice is not " dead " the antenna signal output . Using this dual antennas and dual tuner receiver manner, on the distant weak signal reception , can improve the chances of staccato approximately five times higher than the single antenna above , if the signal strength increased by approximately three times (10dB) , then can be improved by approximately 45 times or more, and if the case in general use at close range , it is almost entirely not produce staccato phenomenon. The higher sensitivity of the receiver , in addition to receiving the greater the distance , the fewer the number staccato outside with a weak signal to near silent operation point occurs when the noise is also lower .
3, to ensure perfect sound quality wireless microphones , non- optional " automatic selection information " model is not available !
General wireless microphone manufacturers are using a simple single-antenna "non- automatic selection information " (Non-Diversity) receiver circuit, to reduce manufacturing costs, price competition in the market for sale . Such "non- automatic selection information ," the receiver or receiver in the environment far more complex place , can not be avoided and the noise deterioration staccato troubled ! Therefore, the emphasis on audio and professional audio concert venues, in order to ensure perfect sound quality, non- optional " automatic selection information " of the aircraft is not available ! Although the " automatic selection information " in more expensive models , but to achieve the wireless microphone and the noise bothered avoid staccato quality requirements , which is the only option.