Collaborate Disseminate
San Francisco-based tech company Somewear Labs has taken the wraps off a pocket-sized military multi-networking communication device called Node that can automatically switch between internet-like mesh radio and satellite communications.Continue Readin… Continue reading Node field radio combines a portable ‘internet’ with satellite links
A new study led by the University of Manchester suggests that if any alien civilizations are turning their radio telescopes toward Earth, they may be able to not only detect our mobile phone signals, but could deduce a lot about our planet and even pro… Continue reading Alien eavesdroppers may be able to map Earth using mobile phone signals
LoRa is a communications method that allows for long range radio contacts to be made using typically low-powered devices. This shouldn’t be surprising given that LoRa is short for “long …read more Continue reading LoRa Goes To The Moon
Over the last 15 years or so, astronomers have detected hundreds of unexplained radio signals from space, which they call fast radio bursts (FRBs). Now a fresh look at radio telescope data has doubled the number of known sources, bringing us closer to … Continue reading Number of known sources of repeating radio signals in space doubles
The search for extraterrestrial civilizations has gotten a major boost as SETI joins forces with the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) near Socorro, New Mexico.Continue ReadingCategory: Space, ScienceTags: SETI, Radio,… Continue reading SETI uses VLA giant radio antennae to seek ETs
Crystals are key to a lot of radio designs. They act as a stable frequency source and ensure you’re listening to (or transmitting on) exactly the right bit of the …read more Continue reading Building a Receiver With The ProgRock2 Programmable Crystal
There’s something of a mystique about RF construction at the higher frequencies, it’s seen as a Black Art only practiced by elite wizards. In fact, UHF and microwave RF circuitry …read more Continue reading The Cheap And Available Microwave Playground
A rite of passage in decades past for the electronics experimenter was the crystal radio. Using very few components and a long wire antenna, such a radio could pick up …read more Continue reading Half Crystal Radio, Half Regenerative Radio
In our surface-mount age, it’s easy to be jaded about miniaturization. We pretty much expect every circuit to be dimensionally optimized, something that’s easy to do when SMDs that rival …read more Continue reading Tiny Three-Tube Receiver Completes Spy Radio Suite
In 2019 we got the first-ever direct image of a black hole, which resembled a fuzzy, orange donut. Now, the team has refined the iconic image with the help of machine learning algorithms to produce the highest resolution image possible with the origina… Continue reading Algorithm makeover produces highest resolution image of black hole