Sentences with phrase «am radio transmitters»

We need to create several storm - hardened AM radio transmitters with a broadcast signal of a roughly five - mile radius throughout the County.

Attached to the chip was a radio transmitter.

Not exact matches

The world of radio transmitters is getting ever smaller in size — and bigger in scope.

Significant investments would be needed to build a network of transmitter stations to give signal coverage, or to upgrade existing ones dating back decades when radio navigation was standard.

Even so potent a means of production as the short - wave transmitter has been tamed in this way and reduced to a harmless and inconsequential hobby in the hands of scattered radio hams.

But than, wasn't there a movie about a «radio transmitter to god»?

«She's wearing a radio transmitter in her collar.

Some of our turtles go directly from the museum out into the wild but we can't afford to put radio transmitters on all of them so this is a great way of knowing which turtle is which should we come across them a few years later.

To quantify the trend — and figure out how the flocks might be affecting people — scientists attached radio transmitters to 41 adult geese in the greater Chicago area in the falls and winters of 2014 — 16.

But the transmitter pinged an hourly signal to an Inmarsat satellite and those radio pulses were used to work out a rough flight path for the missing plane.

Now that herpetologists have their boa, which has never been observed in the wild, they plan to release it into the forest with a radio transmitter.

The level of expertise needed to build a radio is just a little less than that required to build a nuclear weapon, they argued, so just as a civilization starts tuning up its transmitters, some internal spat causes it to go off the air in a storm of mushroom clouds.

Communications: numerous transmitters and receivers, including UHF, VHF, LF, MF, HF, CB, AM / FM, SSB, Inmarsat B and C, MSAT, Globalstar, Iridium, Wefax L - band satellite weather, amateur - radio bands.

This orchid bee was one of 16 outfitted with a radio transmitter backpack as part of a study of the insects» flight habits by ecologists at the Smithsonian Tropical Research Institute in Panama.

The first optical storage techniques — which would later create the compact disc — were developed in 1965, but data transfer was still agonizingly slow: Mariner 4 radioed these pictures over 134 million miles with a puny 10 - watt radio transmitter at the rate of 81/3 bits per second.

The outer end was attached to an amplifier and radio transmitter on his skull under the scalp.

Back when transistor radios were hip, Mariner 4 sent these first close - up views of Mars across 134 million miles using a puny 10 - watt radio transmitter.

The Voyagers are now so far away that the signals from their 23 - watt radio transmitters, powered by a radioactive generator, take more than 12 hours to reach Earth.

One attack they label «low difficulty» is a «ground station flood denial»: jamming an ADS - B ground receiver mast (like a cellphone mast) by placing a low - power radio transmitter near it.

There are many powerful radio wavelength transmitters now in orbit and more are planned.

Estes's group then tagged with radio transmitters 17 otters in a lagoon that orcas can't reach and 37 otters in an open bay; over 2 years, deaths were much higher in the bay.

The pair had been fitted with radio transmitters by conservationists and had wintered in the area the previous two years, MacKenzie said.

... The radio transmitter goes on the form of a dart — it's a subdermal tag, and all that's showing at the surface is the antenna.

Each thrush was weighed, equipped with a radio transmitter, and given an injection of water containing two stable isotopes.

Many animals are studied using radio telemetry by attaching a radio transmitter to the outside of the body.

Loeb and his co-author Manasvi Lingam (Harvard University) examined the feasibility of creating a radio transmitter strong enough for it to be detectable across such immense distances.

Because neonate pine snakes are tiny and hard to see, once again, snake surgery is required (and the surgical photo above is of Ward implanting a neonate with a radio transmitter).

Traditional radios, such as an AM / FM transmitter, operate in a limited bandwidth (in this case, AM and FM).

Their movements are monitored daily via satellite transmitters, radio telemetry and on - the - ground observers.

The increasing number of transmitters along with the unawareness of the characteristics and the exact location of the radio transmitters are an extra impediment that makes hard a real knowledge of the variations in electromagnetic field levels in urban environments.

Thus, a focused band of signal is a waving flag, signaling, «Hey, there's somebody out there who can build a radio transmitter,» Shostak said.

HAARP, near Gakona, Alaska, comprises radio transmitters and antennas that are used to heat up the ionosphere — the uppermost region of the atmosphere — creating a laboratory in the sky for scientists.The facility has been used to produce an artificial aurora and to study how charged particles behave in the ionosphere, at a total cost of more than $ 250 million to build and operate.

The extremely high data rates of 6 Gbit / s was achieved by the group through efficient transmitters and receivers at a radio frequency of 71 - 76 GHz in the so - called E band, regulated for terrestrial and satellite broadcasting.

Wider beams are better able to cope with obstacles between the transmitter and the receiver, and radio is not as affected by atmospheric turbulence as optics,» Willner said.

Concurrently with the radar imaging, the scientists also used the radar transmitter at the Arecibo Observatory in Puerto Rico and a portion of the antennas that are part of the National Radio Astronomy Observatory's (NRAO) Very Long Baseline Array (VLBA) to perform an observation known as radar speckle tracking.

A spatially adaptive broadcast system allows the broadcaster to adapt the geographical coverage from the transmitter based on what is actually happening in real - time to the radio frequency emissions.

The coil that generates the signals to write data can be adapted from the transmitter in a walkie - talkie, and the signal detector from a radio tuner.

To track the birds» activity patterns, the researchers caught 142 of the animals by walking around on the tundra and tossing nets over them — the birds aren't afraid of humans — and glued a radio transmitter to each, the size of a small bean.

In view of these circumstances, which should be common to and deducible by all the civilizations in our galaxy, it seems to us quite possible that one - way radio messages are being beamed at the earth at this moment by radio transmitters on planets in orbit around other stars.

When Delgado pushed a button on a radio transmitter he was holding, the bull stopped in its tracks.

The researchers gathered six snakes from Everglades National Park, attached radio transmitters to the animals and then placed them between 13 and 22 miles (21 and 36 km) away from where they were captured.

In October 2014, when Illinois Natural History Survey herpetologist Chris Phillips donned a wetsuit and dove to the bottom of Clear Creek in Union County, Illinois, he was looking for a young male alligator snapping turtle with a radio transmitter on its back.

They say their system, known as Celldar, short for cellphone radar, can achieve better accuracy because cellphone masts are far more widespread than television and radio transmitters.

The device needed kick - starting with a short burst of radio waves, but was then able to use the electrical gradient running across the membrane to sustain the transmitter for up to five hours.

Radar pulses (short bursts of radio - frequency energy) emitted from a ground - based transmitter are reflected by a meteor's trail.

Using digital technology and radio transmitters, researchers are going to find out where Norwegian bats live their lives.

Some of these are: - · Super small, lightweight and hyper - sensitive low - cost Graphene - based sensors and Radio Frequency ID (RFID)-- Higher speed, Low loss and power consumption graphene based optical transmitter and receiver for 5G systems — Making IoNT a low - cost and practical industrial and domestic solutions in Malaysia.

A team at Disney Research is looking at harnessing a technique called ultra-wideband (UWB) ambient backscatter, which would allow IoT devices to save power and ditch their radio transmitters by piggybacking their communications on the multitude of FM and cellular signals already in the air.

Other features were also added, such as a temperature sensor, an orientation sensor, a radio transmitter and an automatic retrieval system that floats the device to the surface after a predetermined amount of time.

To counteract the burgeoning demand for the hip and hearty music, repurposed boats carrying powerful radio transmitters begin to emerge off the coast of Britain, in international waters, pumping out all of the latest rock tunes the young and impressionable public have been clamoring for day and night to millions of listeners.