CONNECTING WITH A PERSONAL COMPUTER

You can use an optional PG-4W cable to connect the transceiver with a personal computer. For this cable, contact your authorized KENWOOD dealer.

Note: Turn OFF the transceiver power before making the connection.

 

To PC jack

 

 

 

PG-4W

To COM port

 

 

 

2.5 mm (1/10")

DB-9 connector

3-conductor plug

 

 

 

RXD2

Pin No.

Pin Name

 

 

 

t

GND

 

 

 

 

 

 

 

 

e

TXD

TXD1 GND3

 

 

w

RXD

 

 

 

 

 

1

To RXD on PC

 

 

 

2

To TXD on PC

 

 

 

3

To GND on PC

 

 

 

Note: When the built-in TNC is ON, some internal frequency relationships may induce an internal heterodyne and cause the squelch to be opened unexpectedly. Shifting the interference will solve this problem. Press [TNC]+ POWER ON to access “BEAT SHIFT”. Press [UP]/ [DWN] to select “UPPER”. Press [OK] to complete the setting. The default is “NORMAL”.

OPERATING TNC

This transceiver has a built-in TNC which conforms to the AX.25 protocol. This protocol is used for communications between TNCs. The TNC accepts data from your personal computer and assembles it into packets. It then converts packets to audio tones which the transceiver can transmit. The TNC also takes audio tones from the transceiver, converts them to data for the computer, and checks for errors in the data.

The TNC mainly functions in Command or Converse mode. First learn the difference between these two modes.

•Command mode

When you select Packet mode, the TNC enters this mode. A “cmd:” prompt appears on the computer screen. You can type commands from the computer keyboard to change the settings on the TNC. When in Converse mode, press [Ctrl]+[C] on the keyboard to restore the Command mode.

•Converse mode

The TNC enters this mode when a linkage with the target station is established. On the computer keyboard, type an appropriate command and if necessary a message, then press [Enter] or [Return]. What you type is converted into packets and transmitted over the air. When in Command mode, type CONVERSE to restore the Converse mode; you can also type CONV or K instead.

For the commands supported by the built-in TNC, see “TNC COMMANDS LIST” on page 99.

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