9
D-STAR OPERATION <ADVANCED>
9-14
■
Data communication
Generally in the DV mode, communication signals have
separate audio and data frames. So in addition to digi-
tal voice communication, low-speed data communica-
tion can be made at the same time.
The DV Fast Data sends the DV data in the fast speed
(approximately 3.5 times faster than the normal opera-
tion). However, no audio can be sent.
Use the optional OPC-2218LU or OPC-2350LU with a
third-party serial data communication software.
NOTE:
• Only ASCII code can be used for 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.
• While operating Dualwatch, and one band is scan-
ning, if you receive an image file or text data on the
other band, some of that data may be lost.
This does not indicate a transceiver malfunction.
q
Set your own call sign, UR call sign and the repeater
call sign.
w
Follow the instructions of the data communication
application software.
e
When data is entered from a PC through the [DATA]
jack, the transceiver automatically transmits it.
• The TX/RX indicator lights red.
• Push [PTT] to transmit data and a voice when “PTT” is
selected in the “DV Data TX” item of the MENU screen.
(p. 16-61)
(MENU > DV Set >
DV Data TX
)
• Before transmission, the transceiver sends approximate-
ly 500 milliseconds of carrier sense.
Configure the serial data communication software as
follows.
• Port:
The COM port number which is used by
the ID-51A/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-51A/E may be higher than 5.
In such case, use a program that can set to higher
than 5.
*
2
You can set the baud rate in the “Data Speed” item of
the MENU screen. (p. 16-76)
(MENU > Function >
Data Speed
)
D
Connection
Connect the transceiver to your PC using the data com-
munication cable, as illustrated below.
To the [DATA] jack
OPC-2218LU (Option)
OPC-2350LU* (Option)
To a [USB] port
PC
Transceiver
* OPC-2350LU allows DV data communication between the
transceiver and an Android™ device.
D
Data communication application setting
D
Data communication operation
Before starting data communication:
The “DV Data TX” item is set to “Auto” by default.
So, depending on the data communication software
program, the transceiver may automatically transmit
the data only when you enter text on the software
screen.
NOTE:
Before starting, be sure to set the following items:
• Set the “GPS SELECT” option to “OFF,” “Internal
GPS” or “Manual” in the MENU screen. (p. 16-32)
(MENU > GPS > GPS Set >
GPS Select
)
• Set the “GPS OUT (To DATA Jack)” option to “OFF”
in the MENU screen. (p. 16-33)
( MENU > GPS > GPS Set >
GPS Out (To DATA Jack)
)
• Set the “CI-V (DATA Jack)” option to “OFF”* in the
MENU screen. (p. 16-78)
* Set to “ON (Echo Back OFF)” or “ON (Echo Back ON)” when
you make a data communication with a CI-V command.
(MENU > Function > CI-V >
CI-V (DATA Jack)
)
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