In the realm of amateur radio, digital modes have revolutionized communication, offering reliable and efficient ways to connect with fellow operators worldwide. JTDX, a popular software suite, stands at the forefront of digital mode operation, providing hams with the tools they need to navigate the digital landscape seamlessly. In this comprehensive guide, we’ll explore JTDX and demonstrate how to harness its power on the Ubuntu operating system.

What is JTDX?
JTDX is a software suite designed for digital amateur radio operations, developed by Igor Chernikov (UA3DJY) and Arvo Järve (ES1JA). It supports a variety of digital modes, including FT8, FT4, JT9, JT65, T10, and WSPR, making it a versatile choice for operators looking to explore different modes of communication.

Key Features:

  1. Multi-Mode Support: JTDX supports a wide range of digital modes, allowing operators to choose the mode that best suits their needs and operating conditions.
  2. Weak Signal Reception: With its advanced decoding algorithms, JTDX excels at decoding weak signals, enabling communication under challenging propagation conditions.
  3. Multi-Decoding: JTDX can decode multiple signals simultaneously, making it easier to monitor activity on the bands and respond to incoming calls efficiently.
  4. Customizable Settings: Users can customize various parameters such as transmit and receive frequencies, audio settings, and interface preferences to optimize performance according to their setup.
  5. Logging Integration: JTDX seamlessly integrates with logging software like WSJT-X, allowing users to automatically log contacts and maintain accurate records of their digital communications.
  6. Real-Time Band Activity Display: The software provides a real-time display of band activity, showing active stations and propagation conditions, helping operators identify potential contacts.
  7. Multiplatform Support: While this guide focuses on using JTDX on Ubuntu, it is worth noting that JTDX is available for multiple operating systems, including Windows and macOS.

Installation Process on Ubuntu:
Installing JTDX on Ubuntu is a straightforward process, thanks to its availability in the Ubuntu repositories. Users can follow these simple steps to install JTDX:

  1. Open the terminal.
  2. Update the package index:
sudo apt update
  1. Install JTDX:
sudo apt install jtdx
  1. Once the installation is complete, launch JTDX from the application menu or by running the command jtdx in the terminal.

Using JTDX:
After launching JTDX, users can configure the software according to their preferences and operating setup. This includes selecting the desired digital mode, adjusting audio settings, setting up CAT control for radio control, and configuring logging integration if desired.

Once configured, users can start monitoring band activity and making contacts. JTDX provides a waterfall display that shows signals across the selected frequency range, allowing users to identify and respond to calls. The software’s decoding capabilities make it possible to communicate even with weak signals, opening up opportunities for long-distance contacts.

JTDX is a powerful tool for amateur radio operators interested in digital mode communication. Its wide range of supported modes, advanced decoding algorithms, and user-friendly interface make it a popular choice among hams worldwide. By following this guide, Ubuntu users can easily install and start using JTDX to explore the exciting world of digital amateur radio operations. Whether you’re a newcomer or a seasoned operator, JTDX has something to offer for everyone in the digital ham radio community.


An amateur radio operator, military veteran, jack of all trades and master of none.

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