31
Basic Operation
Performing Communication
Pressing
%
repeatedly switches the communication mode as follows.
[Analog (FM)] [Auto (
FM)] [Digital (DN)] [Digital Wide (VW)]
FM:
Analog
Analog communication using FM mode.
Auto
Automatically switches between Analog AM (
AM), Analog
FM (
FM), and Digital (
DN).
DN: Digital
Digital communication using (C4FM (Quaternary FSK)
modulation
VW:
Wide Digital
High sound quality of Digital Communication
Caution
z
Digital communication can be performed only on the A-band.
Performing Communication
1
Speak into the microphone while pressing
p
.
When speaking into the microphone, keep it about 5 cm away from your mouth.
2
Release
p
.
The transceiver returns to the Reception mode.
Cautions
z
Use the transceiver at the minimum required transmission power level.
Doing so prevents the transceiver from overheating and saves battery power, increasing the
operating time.
z
Do not continue transmitting for a prolonged period. The transceiver can overheat, resulting in
malfunction or burn.
z
If transmission is continued for a long period, the transceiver overheats and the overheat protection
function is activated. As a result, the transmitting power level is automatically set to Low Power. If
you continue transmitting while the overheat protection function is active, the transceiver will be
forcibly returned to the Reception mode.
If you touch the transceiver immediately after the overheat protection function has become active,
you can get burned. Wait for the temperature inside the transceiver to drop sufficiently before
resuming transmission.
z
Do not perform transmission without attaching the antenna. The transmitter circuit can be damaged.
Tips
• In the FM mode, you can transmit on the 144 MHz and 430 MHz ham radio bands.
• Even while you are receiving in the AM mode, you can transmit in the FM mode by pressing
p
.
• You can change the transmit power level by pressing
F
and then
1
.
Transmit power level may be lower when using the battery pack or the alkaline battery case.
For more details, see “Changing the Transmission Power Level” on page 36.
• If
p
is pressed when a frequency other than the amateur ham radio band is selected, an alarm
tone (beep) will be emitted and “ERROR” appears on the LCD, disabling transmission.
• Pressing and holding
M
for over 1 second, and changing the Set Mode option [8 CONFIG] will
allow you to use the transceiver more conveniently.
• Selecting [8 CONFIG] [2 BCLO] prohibits transmission during reception of a signal.
FT1DR̲DE̲Eng.indb 31
FT1DR̲DE̲Eng.indb 31
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