Other variants use Silicon Labs chips. Updated drivers for Windows 10 and 11 (version 11.2.0 or later) are available on the Silicon Labs support page Manufacturer Specific: If your
. He bought the LDC101 cable, a sleek USB-to-3.5mm link, but when he plugged it in, the computer remained silent. FTDI chipset
| Platform | Driver Version | Download Source | |----------|----------------|------------------| | Windows 10/11 | v3.2.1 | [Official Support Portal] | | macOS (Intel/M1/M2/M3) | v2.0.4 | [Download Link] | | Linux (Ubuntu/Debian/Raspbian) | kernel module included | sudo apt install ldc101-civ-dkms |
The LDC101 interface usually relies on one of three common USB-to-Serial chipsets. You must identify which one you have to download the correct driver: : Highly stable; often the standard for premium cables. ldc101 usb to civ driver updated
: One of the primary benefits of the update is improved compatibility with various operating systems and devices. This ensures that users can connect their LDC101 device to a broader range of systems without encountering compatibility issues.
Even with the best instructions, things can sometimes go wrong. Here are some common problems and their solutions.
Older versions of the LDC101 driver frequently encountered compatibility roadblocks, particularly after recent Windows 11 updates. Users reported issues like sudden disconnects, unrecognised USB devices, and virtual COM port errors. The updated driver introduces several critical fixes: Other variants use Silicon Labs chips
This usually indicates a driver conflict or corruption.
The most recent driver applicable to the LDC101 cable is the , released by Silicon Labs on December 31, 2025 . This update brings several important enhancements:
If your radio control software (e.g., WSJT-X, FLDIGI, Ham Radio Deluxe) fails to communicate properly, verify that the correct COM port is selected in the software’s settings. Also, ensure that no other application is using the same COM port. FTDI chipset | Platform | Driver Version |
We tested the LDC101 cable on an Icom IC-7300 using WSJT-X v2.6.1 (FT8 mode). Here is the difference the updated driver makes:
Plug the cable back in; Windows should now assign it a proper COM port. Schneider Electric Troubleshooting Tips Baud Rate Mismatch : For newer Icom rigs like the , ensure your virtual serial port is set to 115,200 baud if you want to report spectrum data, or 19,200 baud for standard CI-V bus functions. Windows Security Issues