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16
3
BASIC OPERATION
■
Receiving and transmitting (Continued)
Transmitting:
Wait for the channel to become clear to avoid interference.
q
While pushing and holding
[PTT]
, speak into the micro-
phone at a normal voice level.
•
“
” appears.
• A PTT hold function is available. See p. 38 for details.
w
Release
[PTT]
to return to receive.
e
Push
LOW
(RF Power)
to select the output power if neces-
sary.
•
“
LOW
” appears when low power is selected.
IMPORTANT:
To maximize the readability of your signal;
1. Pause briefl y after pushing
[PTT]
.
2. Hold the microphone 5 to 10 cm from your lips, then
speak into the microphone at a 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 or un-matched CTCSS/DTCS is re-
ceived. (Depending on the transmission lockout function
setting.)
- The selected channel is a ‘receive only’ channel.
• Time-out timer
After continuous transmission for the pre-programmed time
period, the time-out timer is activated, causing the trans-
ceiver to stop transmitting.
PRIO
LOW
SCAN
O
G
P
CH
SET
P
RS
TAG
SQL
[PTT]
IC-440-1.indd 16
IC-440-1.indd 16
2008/06/25 15:59:34
2008/06/25 15:59:34