Pc-Control - Kenwood TS-990S In-Depth Manual

PC‑Control
Operators who enjoy remotely controlling a transceiver or operating a transceiver with user‑specific PC applications are
increasing in number. We first implemented a USB connector on the TS‑590S in 2010 to provide PC‑controlled capability
and TX/RX audio transfer through a single cable. In addition to that, dual connections through the COM connector and
the USB connector are used for recording communication logs or remotely controlling from the PC, and enables a
connection of other external device for simultaneous serial communications. The TS‑990S is also equipped with a LAN
connector that can be used to operate the TS‑990S from the PC through a LAN.
A dedicated radio control program (ARCP‑990) for the TS‑990S is distributed free of charge. The TS‑990S can connect
to a PC not only through a conventional COM connector and USB connector but also through the LAN connector. While
the TS‑990S is connected to a PC with a LAN cable, the bandscope display equivalent to that which can be displayed on
the TS‑990S can be used on the ARCP‑990.
For PC commands and how to use them (e.g., how to program application software for the TS‑990S), refer to the
"TS‑990S Series PC Control Command Reference Guide". Since the TS‑990S has a number of functions, some PC
commands have been revised. Consequently, certain PC commands executable in the conventional transceivers may no
longer be executable as they were for the TS‑990S.
The following introduces some examples of how to use PC commands excerpted from the PC Control Command
Reference Guide.
● Acquiring the Frequency Information of the TS‑990S in Real Time
Auto Information (AI) is a command to configure whether or not the status change of the TS‑990S is notified to a PC.
Executing the "AI" command activates the AI function promptly notifies the TS‑990S status changes to the PC. For
example, upon a change of the main band frequency, the latest main band frequency value is automatically transferred,
coupled with the "FA" command, and upon a change of the sub band frequency, the latest sub band frequency value is
automatically transferred coupled with the "FB" command. It is not necessary for the application to read the TS‑990S
status periodically.
While the AI function is active, not only the frequency change information but also the status change information of most
functions, such as mode, filters, and transmit power, are promptly notified by the corresponding commands of those
functions. In a self‑programmed application, use only required commands.
The AI function may transfer a number of commands all at once to a PC; hence, you should manage that the self‑
programmed application has the sufficient buffer memory size allowing it to receiving commands in the PC with high
processing speed.
● Toggling the Split Operation and Sub Band Reception between Active and Inactive
The "TB" command is used to toggle Split operation between active and inactive (switching of the TX band). The "SB"
command is used to toggle the reception on the sub band between active and inactive.
On the TS‑990S, the VFO A and VFO B, which are commonly expressed for conventional transceivers, are reworded
with the main band and the sub band. Additionally, a function to toggle the sub band between active and inactive has
been added; hence, the "FR" command and "FT" command used on conventional transceivers can no longer serve to
handle all TX/RX behaviors. This is why the "TB" command is newly defined to switch the TX band (split operation) and
the "SB" command is newly defined to toggle the reception for the sub band between active and inactive.
● Transmitting an Audio Signal Entered from the Rear Panel Terminal By a PC Command
Specify "1" (transmission by the [DATA SEND] (PF) key) as the "TX" command parameter. (The "RX" command is used
for restoring the RX state.)
With the TS‑990S default configurations, pressing the [PTT] key or the [SEND] key transmits an audio signal entered to
a microphone, or pressing the [DATA SEND] (PF) key or shorting the PKS terminal of the ACC2 connector transmits the
audio signal entered from the rear panel terminal.
To handle these transmission methods using a PC command, change the "TX" command parameter.
If transmission begins using "TX1", an audio signal entered from the rear panel terminal is transmitted in the same
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