Operation Manual

PAGE 9
• Transmitting
Before transmitting, it is recommended to monitor the channel you
are using to ensure it is not busy by pressing
button or Moni
button on extended microphone. Then, keep pressing PTT button
and start talking at approximately 2 inches from the Mic hole. During
transmitting, the LED on the front panel will glow red. Release PTT
button when you have fi nished talking.
Sending Burst Tone
Burst tone is an alternative means of accessing public repeater, ex-
cept for sub audio tone such as CTCSS or DCS. Hold PTT button and
press DOWN key on the Mic, you will send out burst tone, which has
been set through PC programmer.
Sending Selcall Signalling
Hold PTT button and press UP key on the Mic, you will send out
DTMF/ 5 tone/ 2 tone signalling, which has been set through PC pro-
grammer.
• Receiving
RM-03N can be programmed to work channel by channel in “Open
traffi c” or “Group Mode”(CTCSS or DCS). Group mode prevents other
users on the same channel from being heard on your radio.
Open Traffi c:
In this mode, you will hear all communication transmitted on the
channel. When a message is received, radio’s squelch will be un-
mute and LED will grow green, and you will hear the message.
Group Mode:
CTCSS/DCS (Continuous Tone Code Squelch system / Digital Cod-
ed Squelch) are particular TX signaling as an access key to work a
repeater (encoder) or to unlock the party signaling sensitive squelch.
In group mode,