[. . . ] It's extremely compact, sturdy and benefits from basic controls that will satisfy even the most demanding of users. Its main feature is its ability to operate in many European and extra-European countries simply by selecting the desired frequency band. [. . . ] "Squelch" Control: For the maximum receiver sensitivity, the control must be regulated exactly where the receiver background noise disappears. Turn the knob clockwise a little more to set the audio level, until you get a comfortable reception. Safety and convenience are the primary consideration for mounting any piece of mobile equipment. All controls must be readily available to the operator without interfering with the movements necessary for safe operation of the vehicle. Set the proper position in the car to install the transceiver using the supplied supporting bracket or eventually the slide bracket. In the direct-voltage power supply, it is very important to observe the polarity even if the unit is protected against the accidental inversion: Red = positive pole (+) Black = negative pole (-) The same colours are present on the battery and in the fuse box of the car. If possible, mount the antenna in the centre of whatever surface you choose 4. Keep antenna cable away from noise sources, such as the ignition switch, gauges, etc. WARNING: To avoid damage, never operate your CB radio without connecting a proper antenna. Make sure your antenna is securely connected to the antenna connector. [. . . ] NOTE2 If you select a frequency band which operates in FM mode only, the "AM/FM/LCR" control enables the LCR function (last channel recall). 00mA (Power position with no modulation) A readily accessible disconnect device shall be incorporated in the installation wiring. [. . . ]