In the Command Tester window select:
- ICOM CI-V,
- The serial (COM) port connected to the IC-7600 (the IC-7600 uses a virtaul serial port created when you install the driver software supplied with the IC-7600).
- The baud rate - usually 19,200 (check the radio menu settings).
- CTS / DTR / RTS are normally not selected when using the USB connection to the IC-7600.
Then press Connect.

The antenna selection commands are found on page 152 of the IC-7600 Instruction Manual (as of August 4th, 2009), see below.
Command Table
| Cmd. |
Sub cmd. |
Data |
Description |
| 12 |
|
0000 |
Send/read ANT1 selection (RX ANT OFF) |
| |
|
0001 |
Send/read ANT1 selection (RX ANT ON) |
| |
|
0100 |
Send/read ANT2 selection (RX ANT OFF) |
| |
|
0101 |
Send/read ANT2 selection (RX ANT ON) |
Read ANT1 (RX ANT OFF)
To read ANT1 (RX ANT OFF) enter values as shown below. Note - there is no sub command so the first byte of data actually starts in the Sub cmd field.

Press Send to send the command and read the reply.
Read ANT1 (RX ANT ON)
To read ANT1 (RX ANT ON) enter values as shown below and press Send:

Saving Results
To save the results in a text file press Save and select a path for the file. Forward results to simon@hb9drv.ch.