Tag: SDR

via HACKADAY: Making Software Defined Radio Portable

While most smartphones can receive at least some radio, transmitting radio signals is an entirely different matter. But, if you have an Android phone and a few antennas (and a ham radio license) it turns out that it is possible to get a respectable software-defined radio on your handset. [Adrian] set this up to be fully […]

via HACKADAY: An ADS-B Antenna Built From Actual Garbage

With the advent of low-cost software defined radio (SDR), anyone who’s interested can surf the airwaves from the FM band all the way up to the gigahertz frequencies used by geosynchronous satellites for about $20 USD. It’s difficult to overstate the impact this has had on the world of radio hacking. It used to be […]

via HACKADAY: Neural Network Learns SDR Ham Radio

Identifying ham radio signals used to be easy. Beeps were Morse code, voice was AM unless it sounded like Donald Duck in which case it was sideband. But there are dozens of modes in common use now including TV, digital data, digital voice, FM, and more coming on line every day. [Randaller] used CUDA to […]

via HACKADAY: Tapping into a Ham Radio’s Potential with SDRPlay

Software-defined radios are great tools for the amateur radio operator, allowing visualization of large swaths of spectrum and letting hams quickly home in on faint signals with the click of a mouse. High-end ham radios often have this function built in, but by tapping into the RF stage of a transceiver with an SDR, even budget-conscious […]

PODCAST: This Week in Amateur Radio #977

This Week in Amateur Radio #977 Week of November 18, 2017 DOWNLOAD HERE: http://bit.ly/TWIAR977 Here is a summary of the news trending this week. November 18, 2017. This weeks edition is anchored by, Chris Perrine, KB2FAF, Rich Lawrence, KB2MOB,Will Rogers, K5WLR, Don Hulick, K2ATJ, and Jessica Bowen, KB2VWX. Produced and edited (and a little anchoring […]

via HACKADAY: Raspberry Pi Learns Slow Morse Code

It wasn’t long ago that you needed to know Morse code to be a ham radio operator. That requirement has gone in most places, but code is still useful and many hams use it, especially hams that like to hack. Now, hams are using the Raspberry Pi to receive highly readable Morse code using very […]

via the ARRL: Software Defined Radio (SDR) Pioneer Vanu Gopal Bose is Dead at 52

Software Defined Radio (SDR) pioneer Vanu Gopal Bose died on November 11 after suffering a sudden pulmonary embolism. He was 52. Bose was the son of Bose Corp founder Amar G. Bose, who died 4 years ago at 83. Vanu Bose in 1998 founded Vanu Inc., which pioneered the commercialization of software defined radio and […]

via HACKADAY: Scratch That SDR!

When you think of a software defined radio, what language might you consider reaching for to create the software part of the equation? C? C++, maybe? How about Scratch? “What, Scratch as in the visual programming language aimed at young people?”, we hear you cry incredulously. It’s not exactly the answer you’d expect for an […]

DARPA Software Defined Radio (SDR) Hackfest Selects Teams To Explore Cyber-Physical Intersection Of SDR And Drone Technology

The increased use of wireless and internet-enabled devices – from computers to home appliances – and the data they generate are creating opportunities and challenges for the defense and commercial sectors. To help explore and better understand the complex relationship created by the intersection of physical and cyber technology within the ever more congested electromagnetic […]

via HACKADAY: Cheap, Full-Duplex Software Defined Radio With The LimeSDR

A few years ago, we saw the rise of software-defined radios with the HackRF One and the extraordinarily popular RTL-SDR USB TV tuner dongle. It’s been a few years, and technology is on a never-ending upwards crawl to smaller, cheaper, and more powerful widgets. Now, some of that innovation is making it to the world of software-defined […]

via HACKADAY: Cascade LNAs and Filters for Radioastronomy with an SDR

It may not be the radio station with all the hits and the best afternoon drive show, but 1420.4058 MHz is the most popular frequency in the universe. That’s the electromagnetic spectral line of hydrogen, and it’s the always on the air. But studying the H-line is a non-trivial task unless you know how to […]

via HACKADAY: Old Rabbit Ears Optimized for Weather Satellite Downlink

Communicating with a satellite seems like something that should take a lot of equipment. A fancy antenna and racks full of receivers, filters, and amplifiers would seem to be the entry-level suite of gear. But listening to a weather satellite with an old pair of rabbit ears and an SDR dongle? That’s a thing too. […]

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