Once installed, you must optimize the COM port settings for real-time radio control: Open and expand Ports (COM & LPT) . Note the assigned port number (e.g., COM3 ).
Plug the LDC101 cable back into a different USB port if possible. Open and check Ports (COM & LPT) .
: Previous versions of the driver may have had bugs or glitches that affected performance. The updated driver would address these issues, providing a smoother and more stable experience. ldc101 usb to civ driver updated
The LDC101 interface mimics a virtual COM port on your computer, allowing radio control software (like HRD, N1MM, or WSJT-X) to communicate with your Icom transceiver.
The LDC101 driver is a specialized software component that enables a computer operating system to recognize a USB connection from a transceiver as a virtual COM port. Once installed, you must optimize the COM port
Whether you are a veteran ham radio operator or just starting to automate your shack, the "LDC101 USB to CI-V" interface is likely a core component of your setup. This reliable bridge connects your modern computer to Icom's Computer Interface V (CI-V) system, allowing for seamless remote control and logging.
This usually happens if you have an older Prolific chipset that is no longer supported by Windows 11. Open and check Ports (COM & LPT)
If you tell me which and radio model you're using, I can give you the specific baud rate and COM port settings you'll need.
Controlling the transceiver over the internet. Why You Need the Updated LDC101 Driver (2026 Update)
: Follow the on-screen instructions to download and install the driver. This process usually involves running an executable file and following the prompts.
The latest driver updates are critical for maintaining compatibility with current operating systems like and ensuring low-latency communication with your rig. Why Update Your LDC101 Driver?