User's Manual
Professional
FM Transceiver
21
FUNCTION INTRODUCTION
Turn on/off by " Lone Work On/Off" key, in order to make sure the holder is safety when the radio in 
lone work mode. While transceiver in lone work state, the transceiver will send alert tone to remind 
the user when the predetermined working time is reached, and you need press " Lone Work" key to 
state in a safe condition, otherwise the transceiver will in automatic alarm mode.
Scan
Scan
Lone Work
Scan lists are created and assigned to individual channels/groups. Your radio scans for voice activity 
by cycling through the channel/group  sequence speciîżed in the scan list  for the current channel/
group. 
Your radio can support up 250 scan lists, with a maximum of 16 members in a list.
1.Scan lists
When  you start a  scan,  your radio cycles through  the scan list looking for  voice  activity. The LED 
blinks Orange while in scan mode. 
will be no response (call) from the target radio unless you press the PTT button to initiate the call.
Silent w/Voice: Radio transmits an alarm signal and is able to receive an incoming call without any 
audio until you press PTT button to initiate or response to the call.
Turn on/off Emergency mode by " Emergency On/Off " key.










