Icom IC-440N, Instruction Manual

Page: 22 / 64

16
3
BASIC OPERATION
Receiving and transmitting (Continued)
■
Transmitting :
Wait for the channel to become clear to avoid interference.
q
Hold down [PTT] and speak into the microphone at a nor-
mal voice level.
• When transmitting, “ ” appears.
• A PTT hold function is available. See page 38 for details.
Release
w
[PTT] to receive.
Push
e
LOW (RF Power)
to select the output power if neces-
sary.
• “ LOW ” appears when low power is selected.
PRIO
LOW
SCAN
O ࡮ G ࡮ P
CH
SET ࡮ P
RS
TAG
SQL
[PTT]
IMPORTANT:
To maximize the readability of your signal;
1. Pause briefl y after pushing [PTT] . This will ensure the
fi rst part of your message is not cut off.
2. Hold the microphone 5 to 10 cm from your mouth.
Transmitting notes
D
• Transmit inhibit function
The transceiver has several inhibit functions which restrict
transmission under the following conditions:
- The channel is busy or an un-matched CTCSS/DTCS is
received. (Depending on the transmission lockout func-
tion setting.)
- The selected channel is a ‘receive only’ channel.
• Time-out timer
After a continuous transmission (i.e. continually holding down
[PTT] ), a time-out timer will be activated, causing the trans-
ceiver to stop transmitting. In this case, the transceiver will
automatically revert to receive.