1. Product Overview
The ICOM RC-28 Remote Control USB Encoder is designed to enhance the user experience with Icom HF radios when used in conjunction with the RS-BA1 software. It replicates the tactile feel of a radio's tuning knob and encoder, providing precise control. This device includes a sturdy Push-To-Talk (PTT) button and two user-programmable function keys for customized operation. It is important to note that the RC-28 is not a standalone control unit for Icom radios and functions exclusively with the RS-BA software.

Figure 1: ICOM RC-28 Remote Control USB Encoder. This image displays the compact black unit featuring a prominent rotary tuning knob, two smaller rectangular function buttons labeled F-1 and F-2, and a larger rectangular transmit button. The ICOM logo is visible at the bottom right.
2. Key Features
- Replicates the tuning knob and encoder functionality found on Icom HF radios.
- Provides tactile control for the RS-BA1 software.
- Equipped with a durable Push-To-Talk (PTT) button.
- Features two user-programmable function keys (F-1, F-2) for custom assignments.
- Connects via USB for seamless integration with compatible software.
3. Setup Guide
- Software Installation: Ensure the Icom RS-BA1 software is correctly installed on your computer. Refer to the RS-BA1 software manual for detailed installation instructions.
- USB Connection: Connect the RC-28 USB encoder to an available USB port on your computer using a standard USB cable (not always included, check product packaging).
- Driver Installation: Your operating system should automatically detect and install the necessary drivers for the RC-28. If not, check the Icom support website for manual driver downloads.
- Software Configuration: Launch the RS-BA1 software. Navigate to the peripheral or device settings within the software and select the RC-28 as your control device. Follow any on-screen prompts for calibration or initial setup.
- Function Key Assignment: Utilize the RS-BA1 software's settings to assign desired functions to the F-1 and F-2 programmable keys.
Note: The RC-28 requires the RS-BA1 software to function. It cannot operate as a standalone remote control for Icom radios.
4. Operating Instructions
Once the RC-28 is set up and configured with the RS-BA1 software, you can begin operation:
- Tuning Knob: Rotate the large central knob to adjust frequencies, VFOs, or other parameters as configured within the RS-BA1 software. The tactile feedback mimics that of a physical radio.
- PTT Button: Press and hold the "TRANSMIT" (PTT) button to activate transmit mode on your connected Icom radio via the RS-BA1 software. Release to return to receive mode.
- Function Keys (F-1, F-2): Press the F-1 or F-2 buttons to activate the functions you have assigned to them in the RS-BA1 software. Common assignments include band switching, mode changes, or memory recall.
Always refer to the RS-BA1 software manual for specific operational details and advanced features that can be controlled by the RC-28.
5. Maintenance
To ensure the longevity and optimal performance of your RC-28 USB Encoder, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the exterior of the unit. For stubborn dirt, a slightly damp cloth with mild soap can be used, but ensure no moisture enters the device. Avoid abrasive cleaners or solvents.
- Storage: Store the RC-28 in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Handling: Handle the unit with care. Avoid dropping it or subjecting it to strong impacts, which could damage internal components.
- Connectivity: Periodically check the USB cable for any signs of wear or damage. Replace if necessary to ensure reliable connection.
6. Troubleshooting
If you encounter issues with your RC-28, consider the following troubleshooting steps:
- Device Not Recognized:
- Ensure the USB cable is securely connected to both the RC-28 and your computer.
- Try connecting to a different USB port on your computer.
- Restart your computer.
- Check your computer's Device Manager (Windows) or System Information (macOS) to see if the device is listed. If there's an error, reinstall drivers from the Icom website.
- No Response in RS-BA1 Software:
- Verify that the RC-28 is selected as the control device within the RS-BA1 software settings.
- Ensure the RS-BA1 software is running and properly connected to your Icom radio.
- Check for any software updates for RS-BA1.
- Buttons or Knob Not Functioning:
- Confirm that the function keys (F-1, F-2) have been assigned functions within the RS-BA1 software.
- Ensure the RC-28 is clean and free of debris that might obstruct button movement.
If problems persist, consult the Icom RS-BA1 software manual or contact Icom customer support.
7. Specifications
| Attribute | Value |
|---|---|
| Model Name | RC-28 |
| Controller Type | Button Control |
| Connectivity Technology | USB |
| Special Feature | Ergonomic |
| Brand | ICOM |
| Manufacturer | Icom |
| Item Weight | 1.35 Pounds (approx. 0.61 kg) |
| Date First Available | January 15, 2015 |
8. Warranty Information
Warranty coverage for the ICOM RC-28 Remote Control USB Encoder is provided by the manufacturer, Icom. Specific warranty terms, conditions, and duration may vary by region and purchase date. Please refer to the warranty card included with your product or visit the official Icom website for detailed warranty information and registration procedures.
Retain your proof of purchase for any warranty claims.
9. Customer Support
For technical assistance, product inquiries, or support regarding your ICOM RC-28 USB Encoder, please contact Icom customer support directly.
- Icom Official Website: www.icomamerica.com (or your regional Icom website)
- Support Resources: Look for sections like "Support," "Downloads," or "Contact Us" on their website for FAQs, manuals, driver updates, and contact details.
When contacting support, please have your product model (RC-28) and any relevant purchase information ready.





