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radio spectrum

radio spectrum

1 5.4
A range of radio waves used to send TV, phone, and Wi‑Fi signals
  • noun
  • /ˈreɪdioʊ ˈspɛktrəm/
  • Specialized
translation icon : espectro radioeléctrico
  • Several railroads, particularly in big cities, struggle to find enough bandwidth in the crowded radio spectrum for their communication systems.
  • part of the radio spectrum
  • portion of the radio spectrum
  • slice of the radio spectrum

And at the other end of of the radio spectrum is the other project that we are privileged to work on called ALMA, the Atacama large millimetre array.

Examples

  • European carriers spent billions on licenses for the radio spectrum necessary to offer advanced mobile services like 3G.

  • His research suggests that a sub-millimeter hump in the radio spectrum arises from hot magnetized gas orbiting within about ten Schwarzschild radii of the black hole.

    Academic text (2005)
  • Digital radio transmission allows more efficient use of the radio spectrum, but really has no effect on energy usage.

    Blog text (25)
  • The Blackberry uses radio spectrum.

    Blog text (27)
  • Engineers at Pennsylvania State University in University Park have developed software to efficiently manage radio spectrum use to prevent interference on the wireless broadband systems used for high-speed Internet access.

    Academic text (2002)
  • In contrast, the recent auction of licenses to use the radio spectrum for the third generation of mobile phones in this country over the next twenty years raised 22.5 billion for the government.

    Academic text (2001)
  • The FY 2012 number includes the proposed transfer of $100 million in mandatory funding from President Obama's proposal to sell a portion of the radio spectrum for expanding public access to wireless broadband.

    Academic text (2011)
  • It is the grant of policy discretion in the disposition of licenses that Congress has determined should be used to allocate a portion of the radio spectrum among a defined class of potential users.

    Academic text (2016)
  • Digital radio transmission allows more efficient use of the radio spectrum for broadcasting sound and video signals.

Synonyms

band
vsradio spectrum
  • Specialized
66 4.8

A range of radio waves used for signals

is about officially allocated ranges for transmitting rather than general technical limits
frequency band
vsradio spectrum
  • Specialized
2 4.2

A range of radio waves used for one purpose, like TV or radio

is broader covering ranges allocated for several different wireless services
airwaves
vsradio spectrum
1 3.7

The radio and television signals that carry programs to many people

covers formally allocated ranges for many wireless communications beyond just broadcasting
waveband
vsradio spectrum
  • Specialized
1 7.0

A range of radio waves used to send signals like TV or radio

focuses on official allocation across many services beyond just broadcasting
radio-frequency spectrum
vsradio spectrum
  • Specialized
4.5

A range of radio waves used to send signals for radio, TV and mobile phones

emphasizes that these frequencies are officially allocated for specific wireless transmissions

How Wide

wideband
  • Specialized
6.4
radio spectrum
  • Specialized
1 5.4
narrowband
  • Specialized
1 7.0

Surface Forms

Morphology

radio + spectrum

The meaning is directly compositional: 'spectrum' denotes a range of electromagnetic wavelengths and 'radio' specifies the part of that range used for radio/ wireless transmissions, so the phrase refers to the range of frequencies used for radio. This simple noun–noun combination follows common cross‑linguistic patterns (e.g. 'espectro radio'/'spectre radio') and would be understandable to a B1 learner who knows both constituents.

Etymology

The term radio spectrum uses spectrum like the colors of a rainbow to show many parts next to each other, and radio tells us those parts are radio waves. So it means the 'range of radio waves' used for things like TV, mobile phones and Wi‑Fi.