Kenwood TS-990S

3.2. Outline of Host Station (Transmitter) Operations

The host station is configured using a transceiver and a PC connected to the network.

Data signals that control the transceiver are connected to the PC using either LAN, USB

or RS-232C. The PC uses its sound function to input and output audio transmitted and

received by the transceiver, and converts them between digital and analog signals.

The ARHP-990 is installed on the PC. In the case of use via the internet, VoIP Program is

installed on the PC. The ARHP-990 exchanges transceiver control data signals with the

network. The VoIP Program exchanges audio transmissions with the network.

The PC is connected to the network, and exchanges transceiver control data signals and

audio transmissions with the "Remote station (operator)" on the network.

3.3. Host Station (Transmitter) Configuration

TS-990

Sound devices

ARHP-990

VoIP Software

USB/RS-232C

(Transceiver

control)

LAN/WAN

(Commnunication with

Remote Station)

LAN

(Transceiver

control)

Audio transmission

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In this diagram, the modem, router, and hub have been omitted.

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Connection

LAN, USB

RS-232C

Controls that change the frequency or mode are

performed by connecting the transceiver and PC using

either a USB cable or RS-232C cable. (The transceiver

has only one RS-232C connector, so if you are using the

RS-232C connector for KNS operations, another device

cannot be connected.)

There is also a way to connect both the transceiver and

PC to the home LAN. Since the transceiver control

communication is high-speed, this method is

recommended.

Audio

The audio cable is created by the user.

To exchange audio transmissions, connect the transceiver

ACC2 connector to the PC sound I/O terminal. For the

transceiver connector specifications, refer to the TS-990S

instruction manual, and for the cable creation and

connection methods, refer to "4.2. Connecting an Audio

Cable".