ASC (Automatic Squelch Control)
In April 1996, Albert Bertrana, Technical Director of the President Group, presented exclusively to the specialized press an automatic squelch adjustment called ''Automatic Squelch Control'' (ASC). The Automatic Squelch Control (ASC) is an automatic Squelch level setting device based on the quality of the signal received, thus eliminating background noise.
The Squelch (or silencer) is a feature that can be found on all CB radio transceivers. This function virtually eliminates all background noise in the absence of communication. Indeed, the level of radio background noise is not constant and varies depending on time and location. This is a setting that needs to be done with precision and repeated frequently, so as not to diminish the reception capacity of the station.
The ASC therefore conducts a permanent evaluation of the received signal and the existing noise, and it is the signal/noise report obtained that determines the receiver's opening or its standby. If the signal received is low and there is a lot of background noise, the ASC increases the level to cut the noise and improve the clarity of the transmission. If the signal is strong and there is little background noise, the ASC lowers the level to allow the signal to pass and make the transmission audible.
This device, which uses CMS and microelectronics, is present on all CB radios. It avoids manual settings and constant noise level checks, but also improves reception quality. The CB Radio, a safety feature in vehicles, now offers enhanced quality. Drivers no longer have to make adjustments or noise levels checks, as the ASC takes care of all this for them. The ASC thus facilitates the understanding of the messages transmitted. This can be particularly useful in situations where there is a lot of background noise and where it is important to be able to communicate clearly and accurately.
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