3ADVANCED OPERATIONS ................................................................................................. 20EMERGENCY CALLS ...................................................................................................... 20Lone Worker Mode........................................................................................................ 20SCRAMBLER ................................................................................................................... 21MONITOR/ SQUELCH OFF ............................................................................................. 21Squelch Level................................................................................................................ 22PUBLIC ADDRESS (PA) .................................................................................................. 22HORN ALERT .................................................................................................................. 22GPS REPORT .................................................................................................................. 22DMR ..................................................................................................................................... 23INDIVIDUAL/GROUP CALLS ........................................................................................... 23Receiving ...................................................................................................................... 23BACKGROUND OPERATIONS........................................................................................... 24TIME-OUT TIMER (TOT) .................................................................................................. 24AUXILIARY PORT ............................................................................................................ 24DISPLAY BRIGHTNESS .................................................................................................. 24BUSY CHANNEL LOCKOUT (BCL) ................................................................................. 24PTT ID .............................................................................................................................. 25SIGNALING ..................................................................................................................... 25COMPANDER................................................................................................................... 25VOICE ANNUNCIATION................................................................................................... 25