Yaesu FT-4VR Operating Manual

Also see for FT-4VE: Advance manual

14Changing the Frequency StepPressing the [] key or [] key, the frequency step may be changed. Nor-mally, the factory default setting will provide a good frequency step.Press and holdthe Function key → Press the  or  key → Press the Function key(Enters the Set mode) (Select Set Mode "37 STEP") (Confirms the setting)1. Press the [] key or [] key to select the desired frequency step.2. Press the PTT switch to save the setting and return to normal operation.In the default setting, the frequency step is set to “AUTO”, which automaticallyprovides a suitable frequency step according to the frequency band.Adjusting the squelch settingThe squelch level may be adjusted to mute the background noise when nosignal is present.1. Press the function key and then press the MONI/T-CALL switch.“LVL □”(0-15) will appear on the display.2. Press the [] key or [] key to adjust the squelch to a level at which thebackground noise is muted.3. Press the function key to save the setting.• The default setting is “LVL 2”.• When the squelch level is increased, the noise is more likely to be silenced,however, at the higher setting it may become more difficult to receive weaksignals.Transmission1. While pressing and holding the PTT switch,speak into the microphone.TX/BUSY indicator lights red during the trans-mission.If the PTT switch is pressed when a frequencyother than the amateur ham radio band is selected,an alarm tone (beep) will be emitted and “ERROR”appears on the LCD, disabling transmission.MicrophoneTX/BUSY Indicator2. Release the PTT switch to return to receive mode.When receiving a signal, the TX/BUSY Indicator lights green.