News tagged with radio signals

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Making frequency-hopping radios practical

The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately congested, while ...

dateMay 15, 2013 in Semiconductors
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First X-class solar flare of 2013

(Phys.org) —On May 12, 2013, the sun emitted a significant solar flare, peaking at 10 p.m. EDT. This flare is classified as an X1.7, making it the first X-class flare of 2013. The flare was also associated with another ...

dateMay 13, 2013 in Space Exploration
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NASA sees sun emit mid-level flare

(Phys.org) —The sun emitted a mid-level solar flare, peaking at 1:32 pm EDT on May 3, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically ...

dateMay 03, 2013 in Space Exploration
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Zone of silence: Testing satellite antennas

(Phys.org) —Satellite engineers learn to get used to the weirdly hushed interior of the Compact Payload Test Range in ESA's ESTEC technical centre area, in Noordwijk, the Netherlands. In this zone of silence, satellite ...

dateApr 12, 2013 in Space Exploration
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