Before opening the software, you need specific hardware components to establish a stable connection between your computer and the radio.

Set channels to High power for maximum range, or Low power to preserve battery life.

：在读写过程中，TC-320的LED指示灯会亮起红色/绿色，以提示数据正在传输。当读写操作顺利完成后，LED指示灯会熄灭。

The interface has rows for each channel (1-16) and columns for:

在使用编程软件之前，需要先完成它的获取、安装以及必要的硬件连接。

Open the and expand the Ports (COM & LPT) section. Note the COM port number assigned to your cable (e.g., COM3).

Once you have modified the settings, click the icon or go to Program -> Write to Radio . The software will upload the new configurations, and the radio will restart. 5. Troubleshooting Common Issues

The legacy HYT programming software is native to Windows (XP, 7, 8, 10, and 11).

Remember: download only from trusted sources, always use a quality FTDI-based programming cable, and respect frequency regulations. With your TC-320 correctly programmed, you’ll enjoy years of reliable, interference-free communication on your chosen channels.

There is no free official download center. You must purchase the software from authorized dealers.

Purpose and key features

Open the CPS. If it's your first time, check the Device Manager to ensure the cable appears under "Ports (COM & LPT)" without yellow error icons.

Securely plug the multi-pin side of the cable into the radio's accessory/earpiece jack. Turn the radio volume knob clockwise to power it on. 3. Configure the COM Port

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Click the Write icon or go to Program > Write to Radio . A progress bar will appear. Do not disconnect the cable or turn off the radio until the software confirms the write process is 100% complete. Troubleshooting Common Software Errors