The noise level of the walkie talkie module is popularized

The walkie talkie module SA818 has an 8-level squelch feature. So what does the squelch level mean, and does it mean that the higher the level, the lower the noise? Below, the editor who thinks about wireless will popularize the noise level of the walkie talkie module.

Squelch is to solve the problem of call quality and noise. The squelch function is to strictly filter out excessive background noise, so that the speaker remains silent when the radio does not receive a signal. There are several levels of maximum noise and minimum noise in the walkie-talkie. Each level is called the first level, which is represented by numbers and is called the squelch level. The larger the number, the higher the squelch level, and the higher the level, which means the stronger the squelch suppression ability, and the less interference from noise or other irrelevant signals.

The user connects an external power supply, horn and potentiometer to the intercom module SA818, which can be used as a small intercom with 16 channels of adjustable frequency. Therefore, the higher the noise level of the wireless intercom module, the less interference the intercom will suffer from other irrelevant noises. The smaller it is.