Ear/Mic/Charger
jack
LCD screen
Displays the current
channel selection
and other
radio symbols
PTT (PUSH to
TALK) key
Press and hold to
transmit
Antenna
POWER key
Press and hold to turn
the unit ON or OFF
MENU key
Press to switch
between modes
MIC (Microphone)
Speaker
CALL key
Press to send
ringing tone to
other PMR units
UP/DOWN key
Press to change
channels, volume,
and to select settings
during programming
Keys/LCD Screen
Channel number. Changes from 1 to 8 as selected by the user.
CTCSS Code. Changes from 1 to 38 as selected
by the user.
Displays the battery charge level. When the bars are
reduced, the batteries need to be charged
TX Displayed when transmitting a signal
RX Displayed when receiving a signal
DCM Displayed when the dual watch function is turned ON
VOX Displayed when the VOX feature is enabled
SC Displayed when the PMR is scanning all channels
Displayed when the key lock feature is activated
Displays the current speaker volume level
Displayed when the call signal is ON
Displayed when the vibration function is activated (TwinTop 400 only)
