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Introduction to Software Defined Radio: A Training Guide

Abul Kalam Khanby
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Introduction to Software Defined Radio

Software defined radio (SDR) is a technology that allows for the creation of flexible, adaptable radio communication systems using software and off-the-shelf hardware. SDR has a wide range of potential applications, including in amateur radio, military communications, and commercial wireless networking.

In this training article, we will cover the basics of SDR, including how SDR works, the different types of SDR hardware and software available, and some practical examples of using SDR for real-world applications.

How SDR Works

Software defined radio works by using a computer to process the radio signal, rather than using dedicated hardware circuits. This allows the radio system to be easily reconfigured and adapted to different communication needs.

To use SDR, you will need an SDR hardware device, such as an SDR dongle or SDR transceiver, and SDR software, such as SDR# or GNU Radio. The SDR hardware device connects to your computer and captures the radio signal, while the SDR software processes the signal and allows you to control the radio system.

Types of SDR Hardware and Software

There are many different types of SDR hardware and software available, each with its own features and capabilities. Some common types of SDR hardware include:

  • SDR dongles: These are small, inexpensive devices that can be plugged into a computer’s USB port to capture radio signals. They are often used for amateur radio and hobbyist applications.
  • SDR transceivers: These are larger, more expensive devices that can both transmit and receive radio signals. They are often used for commercial and military applications.

Some common types of SDR software include:

  • SDR#: This is a popular, easy-to-use SDR software for Windows. It has a simple interface and a wide range of features, including support for multiple SDR hardware devices.
  • GNU Radio: This is an open-source SDR software that runs on Linux, macOS, and Windows. It has a more advanced interface and is often used for research and development purposes.

Practical Examples of Using SDR

There are many practical examples of using SDR for real-world applications. Some common examples include:

  • Amateur radio: SDR is often used by amateur radio operators to communicate with other radios around the world. With SDR, it is possible to easily switch between different frequency bands and communication modes.
  • Military communications: SDR is used by military organizations to create flexible, adaptable radio communication systems for use in the field. SDR allows for easy reconfiguration of the radio system to meet changing needs and conditions.
  • Commercial wireless networking: SDR is used by commercial companies to create wireless networking systems, such as WiFi and cellular networks. SDR allows for easy adaptation of the radio system to meet changing needs and conditions.

Conclusion

Software defined radio is a flexible, adaptable technology that allows for the creation of custom radio communication systems using software and off-the-shelf hardware. It has a wide range of potential applications, including in amateur radio, military communications, and commercial wireless networking. In this training article, we covered the basics of SDR, including how SDR works, the different types of SDR hardware and software.

Published by Abul Kalam Khan

He is an Author, Inventor, UAS Engineer, Blogger//Speaker and Entrepreneur. He has completed Aircraft Maintenance Engineering (AME). After the completion of the course, He shifted to Manila Aviation, Philippines to obtain the experience of Bell 407 Helicopter and Super King Air B200 aircraft. Also, accomplished accreditations in Human Factors, Aircraft Systems, Jet Engines, and Airframe, identified with wide-body aircraft, such as A320, A340, and B737. Later on, He joined a privately held UAV Company as a UAV Technical Engineer, where, during the exploration of Unmanned Aerial Vehicles, He transmuted his ‘Manned Aircraft’ knowledge into ‘Unmanned Aircraft’ and designed ‘India’s first Drone crash course study material’. Aside from Technical work, coordinated numerous workshops and training sessions to train the Engineering students regarding the Unmanned Aviation field as well as participated in the HALE/MALE sorts UAVs venture. Presently, He is working as a Director in a private UAV Manufacturing company (VAU Technovations LTD.). His recently formed UAV include VTOL UAV with Virtual Pilot and inventions comprise ‘Blended wing body flapless VTOL UAV, controlling with bleed air motion control system’ and more. As well as he authored a book, which comprises a detailed description related to all elements of the Unmanned Aircraft System. “Since, beginning He was very much interested in to produce something new, which never been done before to change the reality. The way, which drives this sort of deduction falls under the enterprising space, where somebody controls the entire Universal laws to reimage it by his own specific manner to make outlandishly conceivable.” By keeping an innovator mindset, after the completion of the course, He joined India based Start-Up company in the Drone sector. Where he got the undertaking to design ‘UAV Courses’ and the ‘Fledged Unmanned Device’ without any assistance. It becomes very hard to work, out of your prepared space. ‘Reimagination factor’ empowered him to plan ‘Practical UAV Courses’ as well as ‘Fledged Unmanned Device’ identified with numerous applications. During the working session, organized many training sessions and Signed MOUs with different colleges to train the engineering students in his own defined way. After that joined a couple of Start-Up companies (INDIA/South Africa) in a similar area as a Pioneer to deliver them ‘Initial Stage Boosting Strategies’ to cause them to survive in the market with limited resources. Parallelly, continues to contribute his own opportunity to tackle the genuine issues, which addressed by customers. Presently, working on, to be a Global competitor in the DRONE sector by manufacturing a completely indigenous Advanced Unmanned Aircraft System with Uniquely planned calculations. Awarded by many Engineering colleges for his work in DRONE Training Domain. In 2017, ‘Entrepreneur Magazine’ printed about his Business effort in DRONE Sector. In 2018, Nominated for ‘Visakhapatnam Manufacturing Leadership Award’. His invention sheaf comprises, ‘Blended Wing Body Flapless VTOL UAV, controlling with Bleed Air Motion Control System’, to solve out the Endurance related problem with the capability of carrying both Low-speed and High-speed operations at maximum stealth mode. ‘Unmanned Aircraft System for Under Bridge Bearings Inspection’ to solve out the inspection related problem of ‘Under Bridge Bearings’, The problem was addressed by one of the construction company. An extendable robotic arm with a camera is attached with the HUB of the air vehicle, which eases the ‘Bearings’ related inspections inside the ‘confined spaces’. ‘AI DRONE with Virtual Pilot’, Virtual pilot concept makes the controlling and troubleshooting of the air-vehicle easy. The purpose for to concoct the ‘Virtual Pilot’ is to ease the controlling and troubleshooting of the air-vehicle for the Non-Engineer operator. And the invention related to the defense sector comprises, ‘Lightning Strike System’, A MALE/HALE UAV payload system that channelizes the ionized plasma through MV channels to neutralize the targets. Additionally, Related to the Agriculture sector, the commercially launched ‘AGRORECK’ series ‘Pesticide spraying’ and ‘Multi-spectral imaging DRONES’ to solve the AGRO-related problems.

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