Yaesu FTA-310 Operating Manual

FTA-310 OperATing MAnuAl 21advanced operatIonLOCK FunctionThe lock function prevents accidental changes to thefrequency setting and the keypad controls. To activate the lockfeature, press the [F]key momentarily, thenpress the [ ( )]key. In the LOCK mode,the display will show“- LOCK -” when you rotate the DIAL selectorknob, press downward on the VOLUME knob, ortouch a key on the keypad. To turn the lock feature off, press [F]  [ ( )]again. You can still access the 121.500 MHz Emer-gency Frequency when the LOCK function is on.Simply press the [121.5] key momentarily (this keynever locks). Pressing this key also unlocks the ra-dio.You may choose the lockout configuration according toyour operating preferences. See page 51 for details.Beep On/OffThe FTA-310’s key/button beeper provides convenientaudible feedback whenever a button is pressed. Eachkey and button has a different beep pitch, and each func-tion has a unique beep combination.When you are scanning, the beeper will be heard eachtime the scanner halts on a busy channel. This may bedistracting in some environments; if you want to turn thebeeper off (or back on again): Press the [F] key, then press downward on theVOLUME knob to activate the Menu (“SET”) mode. Rotate the DIAL selector knob to select Menu Item05 “BEEP.” Press downward on the VOLUME knob to enableadjustment of this Menu item. Rotate the DIAL selector knob to select the desired“beeper.” The selections available are on, DTM, and oFF.on: Sounds a beep corresponding to a musical note.DTM: Sounds a beep corresponding to a DTMF tone.oFF: Disables the key beeper. When you have made your selection, press down-ward on the VOLUME knob to save the new set-ting, and then press the PTT key to exit to normaloperation.