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11
D-STAR OPERATION (ADVANCED)
11-21
Data communication
In addition to digital voice communication, you can
send and receive data Also, you can use the DV Fast
Data function for data communication
To send and receive data, a USB cable (user
supplied), and a data communication software (user
supplied) are required
NOTE:
“DV Data TX” is set to “Auto” as the
default setting When you enter text data into your
communication software, the transceiver may
automatically transmit it, depending on the software
and the software settings
» SET > DV/DD Set >
DV Data TX
D
Connection
Connect the transceiver to your PC using a USB
cable, as shown below
NOTE:
Before you start sending data, BE SURE to
set the following items on the USB (B) FUNCTION
screen
» SET > Connectors >
USB (B) Function
• Set “USB (B) Function” to “DV Data”
• Set “GPS Out” to “OFF”
USB cable
To the [USB] port
To a USB port
PC
IC-905
D
Data communication application setting
Set the communication software, as shown below
• Port:
The COM port number that is used by the
IC-905*
• Baud rate: Your desired speed
• Data:
8 bit
• Parity: none
• Stop:
1 bit
•
Flow control: Xon/Xoff
* Depending on the PC environment, the COM port number
used by the IC-905 may be higher than 5 In that case, use
an application that can set it to higher than 5
D
Sending data
1 Set your own call sign, the destination call sign,
and the repeater call sign
2 Follow the instructions of your data
communication application software
3 When you enter text data into your communication
software, the transceiver may automatically
transmit it, depending on the software and its
settings
L
When “DV Data TX” is set to “PTT,” pushing [PTT]
transmits the text data and a voice signal
» SET > DV/DD Set >
DV Data TX
L
Before transmitting the data, the transceiver
sends a carrier sense signal for approximately 500
milliseconds
NOTE:
• Only ASCII code can be used for data communication
• The transceiver also has a Message Transmission
function that transmits up to 20 characters (p 11-12)
• Depending on the combination of your PC and your
communication software, some data may be lost
• While receiving voice or data through the Internet,
some packets may be lost due to network error (poor
data throughput performance) In such a case, an “L” is
displayed on the screen to indicate that packet loss has
occurred