Digirig Interface Kit for Elecraft KX2/KX3
Best streamlined digital interface for portable amateur radio operators.
The Digirig Interface Kit for Elecraft KX2/KX3 is a compact and versatile digital modes interface for amateur radio enthusiasts. It integrates an audio codec, serial CAT interface, and PTT control into a single unit, simplifying your setup with just one USB connection. This kit offers full CAT control, including PTT, bands, and tuning, and features an open-collector PTT switch. Its rugged aluminum enclosure is ideal for mobile operations, and it connects to your transceiver using standard 3.5mm jacks. Specifically designed for the Elecraft KX2 and KX3, it enhances your digital communication capabilities.
$99.95
Owner Satisfaction
4.7
/ 5
Category Rank
23
/ 1072
#23 in Communication Radio Accessories
Price vs Category Average
+0%
Below average
Serial Interface
3.3
/ V TTL
Who it's for
- Field enthusiasts prioritizing lightweight gear for portable operations
- Operators seeking a seamless, plug-and-play radio integration
- Hams eager to explore modern digital communication modes
Who should skip it
- Traditionalists focused exclusively on voice or manual CW operation
- Budget-conscious hobbyists wary of additional equipment expenses
- Operators uncomfortable with technical software and driver troubleshooting
Performance breakdown
Setup Simplicity
Single USB connection eliminates the typical mess of multiple interface cables.
Portability
Ultra-compact aluminum build fits perfectly in any field-ready radio kit.
CAT Control Precision
Seamless integration provides reliable tuning and PTT control for Elecraft transceivers.
Build Durability
Rugged aluminum enclosure stands up to the rigors of mobile operation.
Platform Compatibility
Drivers work flawlessly across Windows, macOS, and Linux operating systems.
Connectivity Versatility
Standard 3.5mm jacks ensure quick and secure connections to your radio.
Key Specs
Serial Interface
3.3V TTL
Weight
0.1 lbs (approx. 45.36g)
Dimensions
1.5”×1”×1” (approx. 38.1mm×25.4mm×38.1mm)
Material
Aluminum enclosure
Audio Codec
CM108
Serial Interface Chip
CP2102
Computer Connection
USB-A to USB-C
Transceiver Connection
3.5mm jacks (TRRS)
Features
- All-in-one audio, CAT, and PTT interface
- Single USB connection for reduced cable clutter
- Full-featured CAT control supported
- Configurable serial port for flexibility
- Works across Windows, macOS, and Linux
- Rugged aluminum enclosure for mobile use
- Easy transceiver connection with 3.5mm jacks
- Designed for Elecraft KX2/KX3 transceivers
What customers say
The Digirig Interface Kit for the Elecraft KX2/KX3 is overwhelmingly praised as a game changer for portable digital radio. Customers consistently highlight its exceptional plug and play functionality, which drastically simplifies integrating computer control with these QRP rigs. The sentiment centers on its compact, rugged design, perfectly suited for SOTA and POTA activations where minimizing weight is paramount. Users appreciate the robust build quality and the specific cable kit that eliminates complex wiring, ensuring true out of the box compatibility. While the price is higher than DIY options, the consensus is that the value derived from its reliability, effective isolation, and seamless integration justifies the investment. It is viewed as an essential, high performing tool that reliably unlocks the full potential of the KX2/KX3 for digital modes, making field deployment effortless.
Know before you buy
No, the Digirig is powered directly through the USB connection to your computer, eliminating the need for an external power supply.
The Digirig uses the standard CP2102 serial chip and CM108 audio codec. While most modern operating systems like Windows, macOS, and Linux will recognize these automatically, you may need to download the latest CP2102 drivers from Silicon Labs if your computer does not detect the serial port.
Yes, this kit is specifically configured for the Elecraft KX2 and KX3 and includes the necessary cables to connect the interface to your transceiver's 3.5mm jacks.
Yes, the interface is designed to handle audio, PTT, and CAT control simultaneously, making it a complete solution for digital modes like FT8, JS8Call, and RTTY.
Absolutely. The rugged aluminum housing is designed to withstand the rigors of mobile and field use while keeping the internal components protected.
The unit features an open-collector PTT switch, which provides reliable keying for your transceiver directly through the interface.
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