Adjusts the squelch threshold, adjustment range: 5 to 25 dBμV, adjustable in 2-dB steps, can be switched off
Danger of hearing damage and material damage!
If you switch the squelch off or adjust the squelch threshold to a very low value, loud hissing noise can occur in the receiver. The hissing noise can be loud enough to cause hearing damage or overload the loudspeakers of your system!