Sentences with phrase «radio signals at»

The buoys relay their positions by transmitting radio signals at a precise frequency.

When the radio waves stop, the nuclei relax back to their original state, giving off a radio signal at a frequency proportional to the strength of the magnetic field.

So it becomes really interesting when a signal with few natural explanations is detected and, according to astronomer Nick Suntzeff of Texas A&M University in an interview with Ars Technica, a radio signal at this frequency is, well, «strange.»

Not exact matches

David Axelrod, a key Obama political adviser, signaled Tuesday on television and radio that the Obama administration might be up for a compromise of some sort on the birth control issue, but none of these bedroom issues is going away, at least not until the 2012 presidential election is over.

Radio waves that originated at a later time in cosmic history, on the other hand, might be stretched only, say, fivefold, arriving here as 105 - centimeter signals.

This predicted shutdown in 21 - centimeter radio signals will not occur everywhere at once, Loeb says.

For more than a decade, scientists at Haystack Observatory have studied plasma plume phenomena using a ground - based technique called GPS - TEC, in which scientists analyze radio signals transmitted from GPS satellites to more than 1,000 receivers on the ground.

The tag transmits a radio pulse that can be picked up at least 20 kilometres away — much further than existing tags can signal — and crucially, it needs no batteries to work.

Small radio frequency (RF) coils strategically placed around a patient's head — the twisted copper wires shown in the image at right — act as antennas, detecting that hum and transmitting it to domino - sized green amplifiers, which read the signal and pass it on to an external computer.

Although they last mere milliseconds at any single frequency, their great distances from Earth — and large quantities of intervening plasma — delay their arrival at lower frequencies, spreading the signal out over a second or more and yielding a distinctive downward - swooping «whistle» across the typical radio receiver band.

Cars beaming short - range radio signals in 360 degrees and broadcasting their exact position on the road at every moment could auto - drive together, bumper to bumper, at high speeds.

«The gradual brightening of the radio signal indicates we are seeing a wide - angle outflow of material, traveling at speeds comparable to the speed of light, from the neutron star merger,» said Kunal Mooley, now a National Radio Astronomy Observatory (NRAO) Jansky Postdoctoral Fellow hosted by Calradio signal indicates we are seeing a wide - angle outflow of material, traveling at speeds comparable to the speed of light, from the neutron star merger,» said Kunal Mooley, now a National Radio Astronomy Observatory (NRAO) Jansky Postdoctoral Fellow hosted by CalRadio Astronomy Observatory (NRAO) Jansky Postdoctoral Fellow hosted by Caltech.

When radio arrived at the end of the 19th century, few thought that «wireless» communications, in which intangible signals could be sent through the air over long distances, would be competitive in a world dominated by the telegraph and telephone.

But the giant telescopes stare at such small parts of the sky that they miss most sudden belches of radio signals.

At the end of the fibre, those signals are broadcast using a radio antenna, providing 3G and Wi - Fi access simultaneously, for instance.

Breakthrough Listen's search for radio signals of extraterrestrial origin is using a new telescope at Green Bank that's vastly bigger and more sensitive.

The radio and x-ray signals come from the jet, which at first would have beamed them too narrowly along its axis to be seen from Earth.

-- No earlier than around midnight PDT on April 26 (3 a.m. EDT on April 27): Earth has its first opportunity to regain contact with Cassini as the giant, 230 - foot (70 - meter) Deep Space Network antenna at Goldstone, California, listens for the spacecraft's radio signal.

«NMR is a very powerful tool, but its measurements rely on amplification of electrical signals at radio - frequencies.

«The signals are not only weak, but they appear at radio frequencies that are used by communication devices and radars, which generate signals billions of times stronger than the cosmic ones that we are trying to detect.»

18 Alien invasion At the SETI Institute in Mountain View, California, a cadre of dedicated scientists sifts through radio static in search of a telltale signal from an alien civilization.

But Alex Dessler, a space physicist at the University of Arizona, Tucson, says the same area of the planet also produces unusual radio signals, flares of ultraviolet light, and high levels of infrared radiation and even seems to be correlated with a patch in Jupiter's magnetosphere that pumps out high - energy electrons.

Teams in the United States, Europe, and Australia hope to see a signal within 2 or 3 years — although the U.S. effort is threatened by plans at the National Science Foundation to defund the two radio telescopes it uses.

They vibrate at the frequency of an FM radio signal, so they could be used for miniaturized communications systems.

Researchers at Case Western Reserve University are developing atomically thin «drumheads» able to receive and transmit signals across a radio frequency range far greater than what we can hear with the human ear.

At the lowest frequencies, NIOSH says, radio signals can penetrate earth.

Other radio frequencies offer better options in the event of an emergency: at lower frequencies, radio signals can propagate through conductive materials like cables, pipes, power lines and wires.

That's why Doeleman and his EHT colleagues are hard at work devising a way to extract radio signals from 50 or more radio dishes at ALMA without interfering with the array's primary mission: studying the origins of the universe.

The NIST team is experimenting with low - frequency magnetic radio — very low frequency (VLF) digitally modulated magnetic signals — which can travel farther through building materials, water and soil than conventional electromagnetic communications signals at higher frequencies.

Life on planets orbiting other stars doesn't have to literally broadcast its existence: Radio signals are just one way earthbound scientists might detect biological activity elsewhere in the universe, says Hanno Rein, a planetary scientist at the University of Toronto, Scarborough, in Canada.

But this Wednesday at 3 p.m. Eastern time, the Breakthrough Listen project will aim the West Virgina - based 100 - meter Green Bank Telescope at «Oumuamua for 10 hours of observations in a wide range of radio frequencies, scanning the object across its entire rotation in search of any signals.

In addition to time on the 100 - meter - wide Green Bank Telescope in West Virginia and the 64 - meter Parkes Radio Telescope in New South Wales, Australia, the project will also use the 2.4 - meter Automated Planet Finder Telescope at the Lick Observatory on Mount Hamilton near San Jose, California, to search for possible optical laser signals from another world.

A team of researchers from Center for Biomedical Technology (CTB) at Universidad Politécnica de Madrid (UPM) has developed a pocket instrument capable of perceiving radio signals from 50 MHz to 6 MHz and storing this information in a non-volatile memory.

The SETI Institute uses powerful radio telescopes on Earth to search for narrow - band signals, or signals focused at one spot on the radio dial, Shostak said.

Building the instrument required solving a host of engineering problems, ranging from dealing with a remote, barely accessible site, shielding the dish from radio frequency interference that would drown out the signals from cosmic objects, and developing a first - of - its - kind method to pull a portion of the spherical dish into a gradually moving paraboloid to aim at and track astronomical targets as Earth rotates.

There are still ways to make the hypothesis work: a megastructure swarm might radiate its gathered energy away as radio or laser signals instead of heat; it might not form a spherical swarm but a ring precisely aligned with our line of sight; it might use technology beyond our understanding of physics that emits no heat at all.

By passing through the pulsar's magnetic field at such a rapid pace, these companions could create the swoosh by disrupting the radio signal we see (arxiv.org/abs/1607.01737v1).

Such radio traffic could be readily apparent On the earth, for example, a new radar system employed with the telescope at the Arecibo Observatory for planetary studies emits a narrow - bandwidth signal that, if it were detected from another star, would be between a million and 10 billion times brighter than the sun at the same frequency.

The computer relays a coded radio signal to the NDUs, which are moored outside the microatolls which emerge at low water.

Because of the complexity of the signals and the fact that they are not beamed specifically at the earth, however, the receiver we would need in order to eavesdrop would have to be much more elaborate and sensitive than any radio - telescope system we now possess.

Congress cut off funding to listen for radio signals from extraterrestrials in 1993, and these days much of the research is supported at the whim of Paul Allen, the cofounder of Microsoft.

At the appropriate frequency they could even be the brightest radio signals in the sky.

For example, if the, 000 - foot radio telescope at the Arecibo observatory in Puerto Rico were to transmit information at the rate of one it (binary digit) per second with a bandwidth of one hertz, the signal could be received by an identical radio telescope anywhere in the galaxy.

Any radio signal we send would be detectable over interstellar distances if it is more than about 1 percent as bright as the sun at the same frequency.

The rocket will hold an antenna to intercept radio signals below 30 MegaHertz and a digital receiver, both developed by researchers from the Radboud Radio lab at Radboud Univerradio signals below 30 MegaHertz and a digital receiver, both developed by researchers from the Radboud Radio lab at Radboud UniverRadio lab at Radboud University.

By gathering the radio signals emitted by any particular quasar at various far - flung points about the globe and measuring the tiny time lag between the signal's arrival at the different locations, people like Ma and Behrend can tell exactly how far apart those locations are.

That is 1000 times faster than existing implants, which send radio signals through tissue at a maximum of 50 kilobits a second.

One difference will be that 5G may move wireless signals to a higher frequency band, operating at millimeter - length wavelengths between 30 and 300 gigahertz (GHz) on the radio spectrum.

At 8:52:37 p.m. Eastern time, a radio antenna near Madrid received the first signal from the spacecraft since it buzzed the dwarf planet.

Prior to atmospheric entry at 14:42 GMT, contact via the Giant Metrewave Radio Telescope (GMRT), the world's largest interferometric array, located near Pune, India, was established just after it began transmitting a beacon signal 75 minutes before reaching the upper layers of the Martian atmosphere.