The International Maritime Organization requires them to
broadcast radio signals disclosing their positions and their headings, and Lemur satellites are equipped to collect it.
Instead of requiring drones to
broadcast a radio signal or similar, this system would be cheap to implement and could potentially be retrofitted to existing models.
He realised that you could use an app to insert a short SOS message into the name field of a phone's Wi - Fi hotspot, too, as these can
broadcast a radio signal without requiring internet access.
Not exact matches
We need to create several storm - hardened AM
radio transmitters with a
broadcast signal of a roughly five - mile radius throughout the County.
If the
signals come from a star, the source
broadcasting the
radio waves is very likely the first neutron star ever detected.
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.
That receiver, in turn, could
broadcast the
signals as
radio waves to a nearby computer.
At the end of the fibre, those
signals are
broadcast using a
radio antenna, providing 3G and Wi - Fi access simultaneously, for instance.
A constellation of more than two dozen GPS satellites
broadcasts precise timing
signals by
radio to electronic GPS receivers which allow them to accurately determine their location (longitude, latitude, and altitude) in real time.
Originally developed by the US government for military navigation, satellite navigation systems are now widely used by anyone with a GNSS device, such as an in - car SatNav, mobile phone or handheld navigation unit, which can receive the
radio signals that the satellites
broadcast.
We need to widen the way we listen for
broadcasts from alien civilisations — looking for short pulses packed with information as well as simpler
radio signals
This software taps into your Wi - Fi card's
radio and displays all the
signals from nearby Wi - Fi base stations, along with the frequency, or channel, that they are
broadcasting on.
Digital
broadcasting will largely supersede analogue
signals as a result of the British government's proposals to auction off the
radio waves to the highest bidders.
Subtracting out
radio signals 100,000 times stronger from our own galaxy and from television
broadcasts, they detected the blurred 21 - centimeter
signals from galaxies about 6 billion to 12 billion light - years away.
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.
We use them every day when we
broadcast signals from giant
radio towers, cook in microwave ovens or use an electric toothbrush that recharges wirelessly in a special cradle next to the bathroom sink.
The «smart» poster or T - shirt uses a low - power reflector to manipulate the
signal in a way that encodes the desired audio or data on top of the FM
broadcast to send a «message» to the smartphone receiver on an unoccupied frequency in the FM
radio band.
With a VCO, explains Hone, it is easy to generate a frequency - modulated (FM)
signal, exactly what is used for FM
radio broadcasting.
Instead of
broadcasting its own
signal, a passive radar system listens in to the cacophony of
radio signals in the environment and monitors the way moving objects change them.
An ever - increasing number of satellites
broadcast signals from the sky that
radio telescopes pick up.
Many biologists implant devices that
broadcast such
radio - wave
signals to keep track of animals in the wild.
Once that's in place, a
radio telescope might be able to tune into
radio signals across the entire
broadcast spectrum.
Andrew Siemion, director of the Berkeley SETI Research Center, says that a wider
radio search beyond the so - called «hydrogen line» (which is where the most abundant element in the universe «
broadcasts,» and is a smart bet for finding stray
radio signals) will require more computing power.
The
Signal (R for brief nudity, pervasive profanity and brutal bloody violence) Experimental, sci - fi adventure flick shot in three parts by a trio of directors (David Bruckner, Dan Bush and Jacob Gentry) and set on New Year's Eve in a mythical city where mysterious electronic transmissions being
broadcast via TV,
radio and cell phones are sending the citizens who receive them on a homicidal rampage.
Their resistance efforts turn to testing end deploying an «off - switch»
signal against the machines, but in his free time, Connor still sends out messianic
radio broadcasts to his small but loyal audience of true believers and listens to tapes from his dearly departed mother Sarah (Linda Hamilton).
One engineer boldly suggests a network of «
radio highways» consisting of huge
broadcast transmitters capable of sending out
signals which would be converted into motive power.
In addition, many terrestrial
radio stations have begun
broadcasting digital
signals, which provide high - quality audio transmission.
For example, a veteran with previous experience in
signals intelligence might augment their career opportunities to capitalize on a community college program that trains individuals to be
broadcast media technicians, who work with the equipment necessary to record, edit, and transmit multimedia content on
radio and television.