26
Fixing the Communication Mode
1. To fix the transmit operation mode, touch [
MODE
] to
switch the communication mode.
Communication Mode
Icon
Description of Modes
V/D Mode
(Voice & Data are transmitted
simultaneously)
This is the standard digital mode.
Calls are less prone to interruptions caused by detection
and correction of the received digital voice signal.
Voice FR Mode*
1
(Voice Full Rate Mode)
*
1
High speed data communication using entire 12.5 kHz
band.
Enables high-quality voice communication.
FM Mode
Analog communication using FM mode.
AM Mode (receive only)*
2
The AM mode is for receive only.
*1 When the Set Mode [
TX/RX
]
→
[
2 DIGITAL
]
→
[
4 DIGITAL VW
] is set to “
ON
” (factory
default is “OFF”), the Voice FR mode (VW) may be selected.
*2 When the Set Mode [
TX/RX
]
→
[
1 MODE
]
→
[
3 RX MODE
] is set to “
AUTO
” (factory
default setting), AM mode is automatically selected within the AIR band (108 -
136.995 MHz).
Transmitting
1. While pressing and holding the
PTT
switch, speak
into the microphone.
The TX/BUSY indicator will glow red during transmis-
sion.
If the
PTT
switch 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.
2. Release the
PTT
switch to return to receive mode.
When receiving a signal, the TX/BUSY Indicator
lights according to the band of the received signal.
Receive Band
TX/BUSY LED
A-band receiving
Green
B-band receiving
Blue
Receiving A and B
simultaneously
Light Blue
MIC
TX/BUSY LED
If transmission is continued for a long period, the transceiver overheats and the high
temperature protection function is activated. As a result, the transmitting power level is
automatically set to Low Power. If transmission continues while the high temperature
protection function is active, the transceiver will be forcibly returned to the receive mode.
