Last updated: May 12, 2026
To download the Icom CS-2820 software, follow these steps:
If you purchased the radio new, the software was often included on a CD-ROM.
Connect the data jack on the back of the IC-2820H to your PC. Turn the radio on. Step 4: Read Data Icom Cs-2820 Software Download
Some hams have successfully run the official CS-2820 on Linux using Wine, but there is no official support. Expect issues with COM port passthrough.
Have you successfully programmed your IC-2820H? Share your tips in the comments below. If you're stuck, join the /r/amateurradio subreddit or the D-STAR Info Facebook group for live help.
Many amateur radio operators prefer CHIRP , an open-source tool that supports the IC-2820H. It is often easier to find and compatible with modern operating systems like Windows 11 and macOS. Requirements for Installation Last updated: May 12, 2026 To download the
Try running the program as an Administrator. Final Thoughts
| Problem | Likely Cause | Solution | |---------|--------------|----------| | “COM port not found” | Wrong COM port or driver missing | Check Device Manager. Reinstall USB-to-serial driver. | | “Radio not responding” | Wrong cable or port | Ensure cable is in REMOTE port. Try OPC-478 cable. | | Clone mode stuck | Low radio battery or RF interference | Power radio via 13.8V DC. Move radio away from transmitters. | | Software crashes on Windows 11 | Compatibility mode needed | Right-click .exe > Properties > Compatibility > Run as Windows 7 | | Serial number rejected | Typo or used on another PC | Contact Icom support to reset license (2 activations max). | | D-STAR data corrupt after upload | Using unofficial software or incorrect callsign format | Re-enter callsigns with uppercase and no spaces (e.g., W1AW). |
The software alone does not include a cable. Purchase OPC-478/OPC-478U separately. Step 4: Read Data Some hams have successfully
If you encounter issues while downloading, installing, or using the Icom CS-2820 software, check the following:
Save your radio’s entire configuration as a file on your PC.