If you’re looking to connect your Xiegu transceiver to a computer for logging, digital modes, or CAT control, a USB CAT interface makes the process quick and straightforward. Whether you’re operating FT8, logging with Ham Radio Deluxe, or controlling your radio remotely, this guide will help you get everything configured correctly.
What Is a USB CAT Interface?
A CAT (Computer Aided Transceiver) interface allows your computer to communicate directly with your radio. Once connected, software on your PC can:
- Change frequency and operating mode
- Read radio status
- Synchronize with digital mode software
- Automate logging
- Control your transceiver remotely
The Xiegu USB CAT interface connects directly between your computer’s USB port and the 3.5 mm CAT port on your Xiegu radio.
System Requirements
Before getting started, make sure you have:
- A Windows PC with an available USB port
- A Xiegu transceiver with a CAT interface
- A USB CAT interface cable
- Compatible CAT control or digital mode software
Installing the USB Drivers
The interface uses the highly reliable FTDI USB chipset, which is recognized by most versions of Windows.
If your computer does not already have the FTDI Virtual COM Port (VCP) drivers installed:
- Download and install the FTDI VCP drivers.
- Follow the installation instructions provided by FTDI.
- Reboot your computer if prompted.
Once installed, Windows should automatically detect the CAT interface when it is plugged in.
Verify the COM Port
After connecting the interface:
- Open Windows Device Manager.
- Expand Ports (COM & LPT).
- Locate the entry labeled:
USB Serial Port (COMx)
Make a note of the COM port number because you’ll need to enter this value in your radio control software.
Recommended Radio Control Software
Several applications work well with Xiegu radios through the CAT interface.
Popular choices include:
- Ham Radio Deluxe (HRD)
- FTBCAT
- TRX-Manager
- MixW
- N1MM Logger
These programs provide CAT control, logging, contesting, and digital mode capabilities.
Configure Your Software
One of the most important setup steps is selecting the correct radio type.
Although you’re using a Xiegu transceiver, its CAT protocol emulates an Icom IC-7000.
Configure your software as follows:
Manufacturer
- Icom
Radio
- IC-7000
COM Port
- The COM port assigned in Windows Device Manager
Baud Rate
- Use the highest baud rate supported by your radio for the best performance.
Testing the Connection
Once everything has been configured:
- Turn on your Xiegu radio.
- Launch your CAT control software.
- Connect using the configured COM port.
- Verify that the software can read the radio frequency.
- Change frequency from the software and confirm the radio responds.
If both the radio and software stay synchronized, your CAT interface is working correctly.
Troubleshooting Tips
If the connection doesn’t work:
- Verify the FTDI drivers are installed correctly.
- Confirm the COM port matches the one shown in Device Manager.
- Make sure the cable is connected to the CAT port—not the microphone or data port.
- Ensure the software is configured for Icom IC-7000.
- Try a different USB port if Windows fails to detect the interface.
- Double-check that the selected baud rate matches the radio configuration.
Most CAT communication issues are caused by incorrect COM port selection or an unsupported radio profile.
Final Thoughts
A USB CAT interface is one of the easiest upgrades you can make to your Xiegu station. Once configured, it opens the door to digital modes, automated logging, contest software, and full computer control of your transceiver.
The setup process only takes a few minutes, and once completed, you’ll enjoy a far more integrated operating experience.
Whether you’re chasing DX on FT8, logging contacts, or simply experimenting with computer control, a properly configured CAT interface is an essential accessory for every Xiegu operator.
Have Questions?
If you’re having trouble getting your Xiegu radio connected or configured with software like WSJT-X, Ham Radio Deluxe, FLDigi, or N1MM Logger, leave a comment below. I’ll be publishing additional guides covering complete setup procedures for popular amateur radio software.