Yaesu VX-120 Operating Manual

Also see for VX-120 Series: Brochure Specifications Technical supplement

VX-120 OPERATING MANUAL 13OPERATIONSQUELCH ADJUSTMENT To set the squelch, press the [F] key, followed by the MONI switch just below the PTTswitch on the left side of the transceiver. Now rotate the DIAL (outer knob) to find the lowestsetting (“LVL 1” through “LVL 15”) that will just si-lence the background noise. Do not use a higher settingthan necessary, or sensitivity to weak incoming signalswill be degraded. Press the PTT switch momentarily when you’ve madethe new setting; this will return you to normal operation (without having transmitted).1) A special “RF Squelch” feature is provided on this radio. This featureallows you to set the squelch so that only signals exceeding a certain S-meterlevel will open the squelch. See page 18 for details.2) If you’re operating in an area of high RF pollution, you may need to consider “ToneSquelch” operation using the built-in CTCSS Decoder. This feature will keep your ra-dio quiet until a call is received from a station sending a carrier which contains a matching(subaudible) CTCSS tone. Or, if your friends have radios equipped with DCS (DigitalCoded Squelch) like your VX-120 has, try using that mode for silent monitoring of busychannels.FREQUENCY NAVIGATIONThe VX-120 will initially be operating in the “VFO” mode, a channelized system whichallows free tuning throughout the currently-selected operating band.Three basic frequency navigation methods are available on the VX-120:1) Tuning DialRotation of the DIAL (outer knob) allows tuning in the pre-programmed steps establishedfor the current operating band. Clockwise rotation of the DIAL causes the VX-120 to betuned toward a higher frequency, while counter-clockwiserotation will lower the operating frequency.If you press the [F] key momentarily, then rotate the DIAL,frequency steps of 1 MHz will be selected. This feature isextremely useful for making rapid frequency excursions overthe wide tuning range of the VX-120.