Availability
HAM Radio Digital Mode Interfaces
Join the fun and make contacts with stations that you might never hear on SSB or CW using the exciting digital modes from WSJT-X such as FT8, FT4 or JT9 on HF and JT4,...
Join the fun and make contacts with stations that you might never hear on SSB or CW using the exciting digital modes from WSJT-X such as FT8, FT4 or JT9 on HF and JT4, JT65, MSK144 for VHF, Meteor Scatter or Moonbounce! Operate easily and effectively with traditional digital modes like RTTY, PSK31, Olivia and SSTV. This is all possible with a modern computer, one of a wide range of third-party programs and a Digital Mode Interface from DX Engineering. Use modes on your radio that cannot otherwise be operated. These are stand-alone digital audio soundcard radio interfaces that exceed the capabilities of computer sound...
Join the fun and make contacts with stations that you might never hear on SSB or CW using the exciting digital modes from WSJT-X such as FT8, FT4 or JT9 on HF and JT4, JT65, MSK144 for VHF, Meteor Scatter or Moonbounce! Operate easily and effectively with traditional digital modes like RTTY, PSK31, Olivia and SSTV. This is all possible with a modern computer, one of a wide range of third-party programs and a Digital Mode Interface from DX Engineering. Use modes on your radio that cannot otherwise be operated. These are stand-alone digital audio soundcard radio interfaces that exceed the capabilities of computer sound devices and keep those functions separate. Some units include rig control as well as digital audio. We stock long-standing stalwart devices like SignaLink™ USB and RIGblaster as well as newer models from several brands including Tigertronics, West Mountain Radio, RigExpert, Yaesu and others. Most interfaces offer plug-and-play installation so you can be on the air enjoying a new digital mode before you know it! Order Digital Mode Interfaces from DX Engineering now!
Digirig Digital Mode and Radio Control Interface Kits
Digirig Digital Mode and Radio Control Interface Kits are compact, USB sound card-based devices designed to streamline digital communications for Amateur Radio operators. Featuring a standard audio codec and flexible Push-To-Talk (PTT) options, Digirig offers broad compatibility across major desktop and mobile platforms. Each kit comes with a Digirig Mobile, a USB-C to USB-A cable, and the appropriate transceiver cables for your selected radio. All-in-One Connectivity At the heart of Digirig Mobile is a built-in USB hub that integrates two essential components: • A CM108-based sound card for audio processing • A CP2102-based serial port bridge for CAT control and programming Includes Additional Circuitry Support for: • Hardware PTT switching • Serial level conversion • Signal filtering and attenuation What truly sets Digirig apart is its single USB connection to the computer, consolidating all digital functions—including audio, CAT control, and optional modules like a GPS receiver—into one compact, efficient enclosure. Computer Connection Digirig connects to your computer via a single USB Type-C port labeled "USB." This connection handles both power and data. The other end of the cable can be USB-A or USB-C, depending on your device—ensuring compatibility with: • Windows, macOS, and Linux systems (including Raspberry Pi) • Android tablets and smartphones Transceiver Connections On the radio side, Digirig features two 3.5mm TRRS sockets: • Audio: Connects ground, audio input/output, and hardware PTT—essential for all digital modes. • Serial: Used for optional CAT control with the transceivers supporting this functionality, firmware updates, and programming presets or channels. - All Digirig cables use a straight TRRS connector on the Digirig side for consistency and reliability. Serial Port Configuration When using the serial socket, Digirig must be configured to match your transceiver's expected serial voltage levels. This is done via solder switches and is not typically changed during regular operation. If you use multiple Digirig units with different configurations, labeling them is recommended to avoid confusion. * Note: Serial configuration is only relevant for radios that support CAT control. Digirig works seamlessly with basic transceivers that do not support CAT control or transceivers that do not have serial cable connected. Digirig Digital Mode and Radio Control Interface Kits Include: (1) Digirig Mobile (1) USB-C to USB-A Cable (1 Set) Transceiver Cables
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$89.95
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$109.99
Unified Microsystems SCI-6 PC Sound Card Interface Kits
Unified Microsystems SCI-6 PC Sound Card Interface Kits are an affordable option to get you on PSK31, RTTY, WSJT, EchoLink, and other exciting digital modes by utilizing your PC's internal sound card. These SCI-6 interfaces are your ticket to cutting-edge digital communications developments. Their design incorporates transformer isolation on both transmit and receive audio. The PTT circuit interfaces to a PC serial port through an opto-isolator to generate automatic transmit/receive control. Since the computer PTT-out pulls high, these SCI-6 interfaces require no external power source. These SCI-6 kits also make a great club project! Give your members some kit-building experience, as well as an introduction to new modes. These kits contain a high-quality, double-sided circuit board with a solder mask and component legends for easy assembly. Unlike other low-cost kits, a machined case is included. For convenience, the cables to your PC's sound card are included. You supply the cables to your particular model of radio. RCA phono connectors make it easy for you to customize the remainder of the connections to your radio. Software for many of the digital modes can be downloaded from the Internet at no cost. When using a PC sound card for digital modes, you may inadvertently transmit sounds generated by your operating system. PC-based sounds can usually be eliminated by a settings change. Please see our images for an example of how to eliminate PC sounds. SCI-6 features: * TX audio: transformer isolation * RX audio: transformer isolation * PTT: optical isolation * Power requirements: None * Size: 2.5 in. wide, by 2.5 in. deep, by 1.0 in. high Note: For additional product information, please look at the files under the "Documentation" tab. Order one of these Unified Microsystems SCI-6 PC Sound Card Interface Kits from DX Engineering and get on the air NOW!
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$29.95