Problems Related To Data Communication, Pc And Network - Kenwood TS-890S Instruction Manual

Problems Related to Data Communication, PC and Network

Symptom
Errors and retries occur frequently
during transmission in the DATA
mode.
Audio input to the data communication
terminal is not transmitted.
Errors occur frequently during
reception in the DATA mode.
Unable to communicate with
ARCP-890 or ARHP-890 using the
COM port.
Unable to communicate with
ARCP-890 or ARHP-890 using the
USB port.
Probable Cause
The audio output level of the auxiliary
equipment is too high and modulation signals
are distorted as a result.
The audio input sensitivity of the data
communication terminal on this transceiver
does not match the input signal.
High-frequency signal sneaks in and causes
distortion of the modulation signals.
a. The auxiliary equipment uses the same
regulated DC power supply as this transceiver.
b. The antenna SWR is high.
c. High-frequency signal from the antenna is
induced by this transceiver.
d. High-frequency signal sneaks in due to the
high audio input sensitivity of the ACC 2
connector.
The audio source input path setting does not
match the terminal in use.
The method of transmission is not appropriate.
The level of the audio input to the data
communication terminal is low.
Decoding cannot be performed as the audio
output level of the data communication terminal
on this transceiver does not match the input
level of the auxiliary equipment.
There is multi-path distortion or fading at short
intervals. (The RX signal strength is not
necessarily the best when it is strongest.)
The baud rates do not match each other.
The COM port is unable to handle CTS/RTS.
The driver is not installed on the PC.
The correct driver is not installed on the PC
because the PC is connected to this transceiver
before the driver is installed.
The baud rates do not match each other.
① Flow control is not configured.
② The COM ports of PC and ARCP/ARHP are
not matching.
TROUBLESHOOTING 18
Corrective Action
Lower the output of the auxiliary equipment
such that the ALC zone is not exceeded.
Adjust the audio input sensitivity of the data
communication terminal in menus [7-06] (USB)
and [7-07] (ACC 2) such that the ALC zone is
not exceeded.
Introduce measures to prevent high-frequency
signal from sneaking in.
a. Use a different power supply for the auxiliary
equipment and this transceiver.
b. Perform antenna matching again.
c. Try changing the earth of the antenna, this
transceiver and the auxiliary equipment.
d. Lower the audio input sensitivity of the ACC
2 connector in Menu [7-07].
Press and hold [DATA] to configure the settings
on the DATA mode audio source input screen.
Transmit signals using one of the following
methods.
a. Transmit by controlling the PKS terminal of
the ACC 2 connector.
b. Transmit using the [PF] key configured for the
DATA SEND function.
c. Transmit using the "TX1;" PC command.
Raise the audio output level of the connected
auxiliary equipment, or raise the audio input
level of the terminal in use in menus [7-06]
(USB) and [7-07] (ACC 2).
Adjust the audio output level of the terminal in
use in menus [7-08] (USB) and [7-09] (ACC 2).
When using a beam antenna, change the
orientation of the antenna to look for a position
that is less likely to cause errors.
Check the baud rate of the TS-890S and
ARCP-890.
Configure Advanced Menu [16] "PSQ/PKS Pin
Assignment (COM Connector)" so that the
COM port can handle CTS/RTS.
Download the driver from our website and
install it on the PC.
Reinstall the driver.
Check the baud rate of the TS-890S and
ARCP-890.
① Check that Advanced Menu [17] "Virtual
Standard COM Port - RTS" is configured to
"Flow Control".
② Check that the COM port number assigned
by the Device Manager of the OS for
communication between this transceiver and
ARCP/ARHP is the same as the number
specified by ARCP/ARHP.
(ARCP/ARHP uses the Standard COM port
number displayed in the Device Manager of the
OS.)
Refer to
16-7
16-7
8-1
1-7
16-2
1-4
16-5
16-7
16-7
16-5
16-8
16-5
16-5
16-5
1-5
16-12
18-5