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1-6 (No.RA035<Rev.001>)

2.2.3 PC Mode
2.2.3.1

Preface

The transceiver is programmed by using a personal computer, a
programming interface (KPG-22A/22U) and the FPU (program-
ming software).
The programming software can be used with a PC. Figure 1
shows the setup of a PC for programming.

Fig.1

2.2.3.2

Connection procedure

(1) Connect the transceiver to the computer using the interface

cable.

Note:

You must install the KPG-22U driver in the computer to
use the USB programming interface cable (KPG-22U).

(2) When the Power is switched on, you can immediately enter

user mode. When the PC sends a command, the transceiv-
er enters PC mode.
When data is transmitting from the transceiver, the red LED
lights.
When data is being received by the transceiver, the green
LED lights.

Note:

• The data stored in the computer must match the “Mod-

el Name and Model Type” when it is written into the
Flash memory.

• Do not press the [PTT] key during data transmission or

reception.

2.2.3.3

KPG-22A description (PC programming interface
cable: Option)

The KPG-22A is required to interface the transceiver with the
computer. It has a circuit in its D-sub connector (KPG-22A: 9-pin)
case that converts the RS-232C logic level to the TTL level.
The KPG-22A connects the SP/MIC connector of the transceiver
to the RS-232C serial port of the computer.

2.2.3.4

KPG-22U description (USB programming interface
cable: Option)

The KPG-22U is a cable which connects to a USB port on a com-
puter.
When using the KPG-22U, install the supplied CD-ROM (with
driver software) in the computer. The KPG-22U driver runs under
Windows XP, Vista, 7, 8 or 8.1.
The latest version of the USB driver is available for download
from the following URL:
http://www.kenwood.com/usb-com/
(This URL may change without notice.)

2.2.3.5

Programming software: KPG-166D (Ver. 2.00 or lat-
er) description

The FPU is the programming software for the transceiver sup-
plied on a CD-ROM. This software runs under Windows XP, Vis-
ta, 7, 8 or 8.1 on a PC. The software on this disk allows a user to
program the transceiver via the Programming interface cable
(KPG-22A/22U).

2.2.3.6

Programming with a PC

If data is transferred to the transceiver from a PC with the FPU,
the data for each set can be modified.
Data can be programmed into the Flash memory in RS-232C for-
mat via the SP/MIC jack.
In this mode, the PTT line operate as TXD and RXD data lines,
respectively.

2.2.4 Firmware Programming Mode
2.2.4.1

Preface

Flash memory is mounted on the transceiver. This allows the
transceiver to be upgraded when new features are released in
the future. (For details on how to obtain the firmware, contact
Customer Service.)

2.2.4.2

Connection procedure

Connect the transceiver to the personal computer using the inter-
face cable (KPG-22A/22U).
(Connection is the same as in the PC Mode.)

2.2.4.3

Programming

[Firmware upgrade in User Mode]

(1) Start up the firmware programming software (Updater).
(2) Set the communications speed (normally, 115200 bps)

and communications port in the configuration item.

(3) Power On the transceiver in User mode.
(4) Press "write" button in the window. When the transceiver

starts to receive data, the orange LED turns to green.

(5) If writing ends successfully, the green LED turns to red.

Note: