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russian state watchdog officials placed under house arrest




officials from the russian media watchdog roskomnadzor have been put under house arrest and are facing charges of fraud.roskomnadzor spokesman vadim ampelonsky and boris yedidin, head of its legal department, have been been placed under house arrest until nov. 7 by the chertanovsky court of moscow, ...



radio frequency hunters: saving your cell signal




every day, kevin argentieri tracks down devices that are causing radio-frequency interference, and then tries to persuade their owners to shut them off. this is a delicate process that involves knocking on strangers’ doors, searching their homes for the offending device, and politely reminding the...



why space dust emits radio waves upon crashing into a spacecraft




the high-velocity impact of a piece of dust or orbital debris generates plasma and an associated radio frequency emission. credit: fletcher/closewhen spacecraft and satellites travel through space they encounter tiny, fast moving particles of space dust and debris. if the particle travels fast enoug...



wow! mystery signal from space finally explained




the wow! signal represented as "6equj5". credit: big ear radio observatory and north american astrophysical observatory (naapo)(phys.org)—a team of researchers with the center of planetary science (cps) has finally solved the mystery of the "wow!" signal from 1977. it was a comet, they report, one...



coming to a city near you




by 12:30 am, the dallas office of emergency management (oem) began to start shutting off the alarms manually. people were freaking out, flooding the dallas 911 call center. more than 800 calls came in between 12 and 12:15 am, creating wait times of up to six minutes, and totaling 4,400 calls for the...



verizon reportedly outbids at&t in 5g wireless spectrum bidding war




according to people familiar with the matter, verizon has outbid at&t by $1.5 million to buy straight path, a company that owns high-frequency radio waves.see also:5g specification sets 100mbps minimum download speedfebruary 24, 2017with us carriers announcing “5g technology” left and right, it ...



verizon reportedly outbids at&t in 5g wireless spectrum bidding war




according to people familiar with the matter, verizon has outbid at&t by $1.5 billion to buy straight path, a company that owns high-frequency radio waves.see also:5g specification sets 100mbps minimum download speedfebruary 24, 2017with us carriers announcing “5g technology” left and right, it ...



the strange radio signals coming from a nearby star




astronomers have detected a mystery transmission at a frequency they haven’t observed before.



low frequency array ireland officially launched




on 27 july 2017, the newly built low frequency array (lofar) station in ireland will be officially opened. this extends the largest radio telescope in the world, connecting to its central core of antennas in the north of the netherlands, now forming a network of two thousand kilometres across. astro...



an njit researcher throws a global ham radio 'party' to study the eclipse




image: members of njit's ham radio club preparing for the eclipse. from left to right - nathaniel frissell, peter teklinski, director of core systems and telecommunications for njit and club adviser,... view more credit: new jersey institute of technologywhen a solar eclipse plunges the country in...



bridging the terahertz gap | eurekalert! science news




image: this is an image of optical frequency combs generated in quantum cascade lasers. the discovered harmonic comb regime produces a spectrum with an intermodal spacing that is 10 to 100... view more credit: (image courtesy of jared sisler/havard seas)optical frequency combs are widely-used, hig...



corsynth frequency divider + multiplier hands-on demo – synthtopia




spanish modular manufacturer corsynth shared this hands-on video demo of their dotcom-style 5u frequency divider/multiplier.the c103 frequency divider / multiplier mkii features two frequency dividers and two frequency multipliers. it generates four new signals from your source signal, with freque...



optical frequency comb offers a convenient way to generate elusive terahertz fre




optical frequency combs are widely-used, high-precision tools for measuring and detecting different frequencies—a.k.a. colors—of light. unlike conventional lasers, which emit a single frequency, these lasers emit multiple frequencies simultaneously. the equally spaced frequencies resemble the te...



an njit researcher throws a global ham radio 'party' to study the eclipse




members of njit's ham radio club preparing for the eclipse. from left to right - nathaniel frissell, peter teklinski, director of core systems and telecommunications for njit and club adviser, spencer gunning (standing) joshua vega (sitting) and joshua katz (standing). credit: new jersey institute o...



vermona unicycle six-waveform vco euro module – synthtopia




electronic sound tools creator vermona have announced availability of their unicycle voltage controlled oscillator, a six-waveform vco (voltage-controlled oscillator) eurorack module.vermona have adapted and reworked the oscillator circuits from their flagship ’14 analog synthesizer to eurorack sm...



corsynth intros c103 frequency divider / multiplier mkii for 5u modular synthesi




corsynth has introduced an updated version of their dotcom-style 5u frequency divider/multiplier.the c103 frequency divider / multiplier mkii features two frequency dividers and two frequency multipliers. it generates four new signals from your source signal, with frequencies one / two octaves hig...



aliens didn't send this 40-year-old signal from space




researchers at the center for planetary science have determined, sadly, that aliens were not responsible for the wow! signal. instead, in an article published in washington academy of sciences, they outline their discovery that a comet was likely responsible for the naturally occurring radio transmi...



nasa mission surfs through waves in space to understand space weather




the two populations of hiss, low and high frequency, inhabit two separate regions in near-earth space. credit: nasa's goddard space flight center/mary pat hrybyk-keiththe space surrounding our planet is full of restless charged particles and roiling electric and magnetic fields, which create waves a...



new design results in compact, highly efficient frequency comb




northwestern university researchers have designed a quantum cascade laser (qcl) frequency comb that is dramatically more efficient than previous iterations.



465k patients told to visit doctor to patch critical pacemaker vulnerability




enlargesteven fruitsmaakshare this storytalk about painful software updates. an estimated 465,000 people in the us are getting notices that they should update the firmware that runs their life-sustaining pacemakers or risk falling victim to potentially fatal hacks.cardiac pacemakers are small device...



international team observes first radio counterpart to gravitational waves




image: artists' rendition of the merger of two neutron stars. top panel: two stars are still separated, but starting to spiral together and emitting gravitational waves; bottom panel: collision has occurred... view more credit: nasawashington - radio astronomers at the u.s. naval research laborato...



railways to use radio-frequency tags to track wagons, coaches




the indian railways will use radio-frequency identification tags (rfid) for tracking of wagons, coaches and locomotives to ensure effective and transparent functioning. leveraging information technology in a big way, the public transporter has issued instructions for equipping all wagons with rfid t...



image: drone antenna test




credit: esa–g. porter, cc by-sa 3.0 igothis 6 m-wingspan unmanned aircraft is supported in mid-air within esa's hertz radio-frequency test chamber, as if suspended in flight, to check it can maintain contact with its controller through satellite links. the drone, developed by barnard microsystems ...



celebrated optical trick goes vibrational




comb maker: forced vibration of a thin wafer shows regions of minimum (dark blue) and maximum (red) oscillation. at the maxima, the oscillation spectrum takes the form of a frequency comb. credit: university of cambridgea micromechanical device generates a series of precise, equally spaced vibration...



ericsson introduces customised network solutions for indian market




ericsson on tuesday announced the launch of new dual band radio products customised for the indian market. the latest innovations from ericsson include wideband radio 2242 - a single radio addressing two spectrum bands (1800 mhz and 2100 mhz) and three standards and dual band radio dot -provides sig...