Now mainstream wireless KTV microphones all use U-segment work, around 740MHz-790MHz. Some major brands have already produced G-segment (1000MHz-2400MHz) microphones, and most domestic manufacturers produce microphones around 700MHz-850MHZ. The V-segment machine is the product of the previous generation.
What frequency KTV microphone is good to choose, we must first talk about the high and low frequencies in the KTV microphone. There is a characteristic of radio frequency work. The higher the frequency, the more it tends to be light. The lower it is, the more it tends to the characteristics of the sound. The high frequency direct radiation is good, the linear transmission, the frequency bandwidth occupies relatively little. If it is low, the diffraction is good, and it is easy to go around. This also explains why the long-distance communication uses shortwave.
High frequencies are used at short distances, and low frequencies are used at long distances. So when our KTV microphones use higher frequencies, they are susceptible to any slight environmental changes. Even if you wave your hand, it may cause a short loss of signal.
Therefore, the distance is a big problem if it is transmitted at a higher frequency.
When working in a lower frequency band, it is more susceptible to interference, because the current low frequency wireless environment is very complicated and there are many interference sources, so the low frequency band is more dangerous.
But the above points are not the basis for you to choose the KTV microphone frequency, because the above reasons are real, but in actual use, it is in the current 500MHz-850MHz frequency band. The effect of high and low on the user is not particularly obvious. The frequency selection mainly depends on which frequency bands the KTV microphones currently have, and which frequency bands are used for open-circuit broadcasting in the current city. For the above frequency bands. Choose a frequency that avoids repetition as much as possible.