41
Basic Operations
Communicating
Transmitting
1
Press and hold
[PTT]
on the microphone.
In analog mode, both the upper and lower portions of
the mode/status indicator light red.
In digital mode, the upper portion of the mode/status
indicator lights red and the lower portion of the mode/
status indicator lights blue.
Analog mode: both the upper and lower portions
light red
Digital mode: the upper portion lights red and
the lower portion lights blue
2
Speak into
[MIC]
on the microphone.
Tip
Keep the microphone about 5 cm away from your mouth.
LO
C
K
P3
P2
P1
7
1
4
8
2
0
5
9
B
A
C
D
3
6
P4
LA
M
P
DTMF MICROPHONE
MH-48
ABC
JKL
TUV
GHI
PQRS
DEF
MIC
MNO
WXYZ
PTT
MIC
3
Release
[PTT]
.
The transmit mode/status indicator turns off and the transceiver returns to the
receive mode.
Tips
• Do not continue transmitting for a prolonged period. The transceiver may overheat, resulting in
malfunction or burn.
• Use the optional cooling fan SMB-201 to effectively cool down the transceiver that has heated up
due to continuous transmission.
• “ERROR TX FREQ” appears if you attempt to transmit an unavailable frequency.
