3
BASIC OPERATION
3-4
Receiving and transmitting
CAUTION: DO NOT
transmit without an antenna�
D
Receiving
1� Rotate [Rotary Selector] to select a channel�
2� When receiving a call, rotate [VOL] to adjust the
audio output level to a comfortable listening level�
NOTE:
• Push [Upper] to listen on the channel, to confirm
that no one is operating on the channel before
transmitting�
• Depending on the presetting, the transceiver may
automatically transmit the microphone audio for
the preset period of time when a matched 2-Tone
signal is received (Auto TX function)�
D
Transmitting
1� Wait until the channel is clear to avoid
interference�
2� While holding down [PTT], speak at your normal
voice level�
3� Release [PTT] to receive�
IMPORTANT:
To maximize the readability of your signal:
1� After pushing [PTT], pause briefly before you
start speaking�
2� Hold the microphone 5 to 10 cm (2 to 4 inches)
from your mouth, then speak at your normal
voice level�
D
Transmitting notes
Transmit inhibit function
The transceiver has several inhibit functions which
restrict transmission under the following conditions:
• The channel is busy�
• A signal with an un-matched (or matched) CTCSS
(or DTCS) tone is received�
• The selected channel is a ‘receive only’ channel�
Time-Out Timer
If continuous transmission exceeds the specified
Time-Out Timer time, the transmission is cut off�
Penalty timer
After the Time-Out Timer cuts off the transmission,
further transmission is inhibited for a specified penalty
period of time�
PTTID call
The transceiver automatically sends the ID code
(DTMF or MDC system) when [PTT] is pushed
(beginning of the transmission) and/or released (end
of transmission), depending on the presetting�
