Collaborate Disseminate
Astronomers have had to reclassify a bright radio galaxy in the sky after it was found to have redirected a jet of radiation straight towards Earth. The event marks the first observation of a reorientation so dramatic that it changes the category a gal… Continue reading Giant galaxy redefined after flipping jet to point straight at Earth
As any radio amateur will tell you, the world of radio abounds with exciting possibilities. Probably the simplest pursuit of them all is that of the SWL, or short wave …read more Continue reading Review: XHDATA D-219 Short Wave Radio Receiver
Almost all of modern society is built around various infrastructure, whether that’s for electricity, water and sewer, transportation, or even communication. These vast networks aren’t immune from failure though, and …read more Continue reading Building A Communications Grid with LoRaType
If you could zoom way, way out to look at the universe at its largest scale, you’d see that it’s made up of a colossal cosmic web. Now, astronomers have detected shockwaves moving through this web, providing new insights into large-scale magnetic field… Continue reading Astronomers detect shockwaves in colossal cosmic web
Our smartphones have become our constant companions over the last decade, and it’s often said that they have been such a success because they’ve absorbed the features of so many …read more Continue reading What’s Going To Happen To Legacy Broadcast Bands When The Lights Go Out?
For all their supposed benefits, homeowner’s associations (HOAs) have a reputation of quickly turning otherwise quaint neighborhoods into a sort of Stanford prison experiment, as those who get even the …read more Continue reading Antenna Hidden in Holiday Lights Skirts HOA Rules
Ever since the first artificial satellite was launched into orbit, radio operators around the world have been tuning in to their space-based transmissions. Sputnik 1 only sent back pulses of …read more Continue reading Hunting for Space Pirates
For anyone new to the world of ham radio, one of the things that takes a little getting used to is visiting the websites of authoritative experts in various fields …read more Continue reading A Linux Distro For All Your Ham Needs
Russian media has blamed hackers after commercial radio stations in the country broadcast bogus warnings about air raids and missile strikes, telling listeners to head to shelters.
Continue reading Hackers blamed after Russian radio stations play warnings of missile strikes and air raids
Here’s a story about a hacker who reprogrammed a device called “Flipper Zero” to mimic Opticom transmitters—to turn traffic lights in his path green.
As mentioned earlier, the Flipper Zero has a built-in sub-GHz radio that lets the device receive data (or transmit it, with the right firmware in approved regions) on the same wireless frequencies as keyfobs and other devices. Most traffic preemption devices intended for emergency traffic redirection don’t actually transmit signals over RF. Instead, they use optical technology to beam infrared light from vehicles to static receivers mounted on traffic light poles…