Collaborate Disseminate
Antennas come in many shapes and sizes, with a variety of characteristics making them more or less suitable for various applications. The average hacker with only a middling exposure to RF may be familiar with trace antennas, yagis and dipoles, but there’s a whole load more out there. [Eric Sorensen] …read more
When you think of a software defined radio (SDR) setup, maybe you imagine an IC or two, maybe feeding a computer. You probably don’t think of a vacuum tube. [Mirko Pavleski] built a one-tube shortwave SDR using some instructions from [Burkhard Kainka] which are in German, but Google Translate is …read more
NGC 3079 is spitting out particles that balloon across thousands of light years in space. Continue reading NASA Captures Stunning Images of ‘Nuclear Superbubbles’ in an Alien Galaxy
MIT is well known for rigorous courses, but they also have a special four-week term at the start of each year called the IAP — Independent Activities Period. This year, the MIT Radio Society had several interesting presentations on both the history and application of radio. You weren’t there? No problem, as the nine lecture were all recorded for you to watch at your leisure. You can see one of the nine, below.
These aren’t some five minute quicky videos, either. They are basically live captures that run anywhere from an hour to almost two hours in length. The topics …read more
Image Credit: Vermont.org
John Dillon writing at Vermont Public Radio, brings forth the true story of Cory Chase, a State of Vermont Telecommunications Infrastructure Specialist and his quest to accurately detail mobile telephony signal coverage in hi… Continue reading The Story: Vermont State Official Proves Carrier Claims Of Coverage Are Hogwash
Depending on who you talk to, Google Assistant is either a tool capable of quickly and clearly answering audio queries in natural langauge, or a noisier and less useful version of Wolfram Alpha. [William Franzin] decided it would be particularly cool to make the service available over ham radio – and that’s exactly what he did.
[William] got the idea for this project after first playing with the Internet Radio Linking Project, a system which uses VoIP technologies to link radio networks over the internet. Already having an IRLP node, it seemed only natural to make it into a gateway …read more
Continue reading Google Assistant, Now Available On Ham Radio
There were plenty of great talks at this year’s Supercon, but we really liked the title of Dominic Spill’s talk: Ridiculous Radios. Let’s face it, it is one thing to make a radio or a computer or a drone the way you are supposed to. It is another thing altogether to make one out of things you shouldn’t be using. That’s [Dominic’s] approach. In a quick 30 minutes, he shows you two receivers and two transmitters. What makes them ridiculous? Consider one of the receivers. It is a software designed radio (SDR). How many bits should an SDR have? How …read more
The two countries were responsible for disrupting the planet’s ionosphere in a series of experiments this June. Continue reading Chinese and Russian Scientists Teamed Up to Manipulate the Earth’s Atmosphere
Videography Credit: Irongeek (Adrian Crenshaw).
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The post DerbyCon 2018, Eric Watkins’ & Devin Noel’s ‘Ham Radio 4 Hackers’ appeared first on Security Boulevard.
Continue reading DerbyCon 2018, Eric Watkins’ & Devin Noel’s ‘Ham Radio 4 Hackers’
Evolutionary algorithms are an interesting topic of study. Rather then relying on human ingenuity and investigation to create new designs, instead, an algorithm is given a target to achieve, and creates “offspring”, iterating in an evolutionary manner to create offspring that get closer to the target with each generation.
This method can be applied to the design of electronic circuits, and is sometimes referred to as “hardware evolution”. A team from Duke University attempted exactly this, aiming to produce an oscillator using evolutionary techniques.
The team used a platform called the “evolvable motherboard”, or EM. The EM is a platform …read more