4
DR MODE <ADVANCED>
4-12
■ Low-speed data communication
In addition to digital voice communication, low-speed
data communication can be made.
Use the optional OPC-2218LU d a t a c o m m u n i c at i o n
c a b l e with a third-party serial data communication
software.
Connection D
Connect the transceiver to your PC using the OPC-
2218LU cable, as illustrated below.
NOTE: Before starting to the low-speed data com-
munication, be sure to set the following items;
• Set the “GPS SELECT” option to “OFF,” “Internal
GPS” or “Manual” in the MENU screen. (p. 5-2)
(MENU > GPS > GPS Set > GPS Select)
• Set the “GPS OUT” option to “OFF” in the MENU
screen. (p. 10-25)
(MENU > GPS > GPS Set > GPS Out)
• Set the “GPS TX Mode” option to “OFF” in the
MENU screen. (p. 5-16)
(MENU > GPS > GPS TX Mode)
D Low-speed data communication
application setting
Configure the serial data communication software as
follows.
• Port : The COM port number which is used
by the ID-31A/E.*
1
• Baud rate : 4800/9600 bps*
2
• Data : 8 bit
• Parity : None
• Stop : 1 bit
• Flow control : Xon/Xoff
*
1
Depending on the PC environment, the COM port
number used by the ID-31A/E may be higher than
5. In such case, use the application which can set to
higher than 5.
*
2
The baud rate can be set in the “Data Speed” item of
the MENU screen. (p. 10-55)
(MENU > Function > Data Speed)
Low-speed data communication D
operation
Set your own call sign, UR call sign and the repeater q
call sign.
Follow the instructions of the data communication w
application software.
When data is input from a PC through the [DATA] e
jack, the transceiver automatically transmits it.
• The TX/RX indicator lights red.
• Push [PTT] to transmit the data and a voice signal when
“PTT” is selected in the “DV Data TX” item of the MENU
screen. (p. 10-46)
(MENU > DV Set > DV Data TX)
• Before transmission, the transceiver sends approxi-
mately 500 milliseconds carrier sense.
To the [DATA] jack
OPC-2218LU
(Option)
To a
[USB] port
PC
Transceiver
NOTE:
• Only the ASCII code can be used for the low-speed
data communication.
• A message of up to 20 characters can be transmit-
ted with a DV voice signal.
• Depending on the combination of your PC and your
serial data communication software, some data
may be lost.
• While receiving voice communication or low-speed
data communication through the internet, some
packets may be lost due to network error (poor
data throughput performance). In such a case, “L”
appears on the LCD to show the Packet Loss has
occurred.
Appears
Before starting low-speed data communication:
The “DV Data TX” item is set to “Auto” by default.
So, depending on the data communication appli-
cation software, the transceiver may automatically
transmit the data only when you input text on the
software screen.
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