Radio could carry sound without wires.

The way we transmit wireless data is by using electromagnetic waves in particular, radio waves.

And radio waves are limited.

Radio

Radio waves. There's another thing.

These radio waves penetrate through walls.

Heinrich Hertz, when he discovered radio waves in 1887, he called them radio waves because they radiated.

They had 53 television and 61 radio transmitters, including 49 ultra short radio wave transmitters.

We soon tune in to Ivan's wave length.

What's the point of these radio waves that you've found?

Table Cost of direct short wave radio broadcasting for the biennium 2000 2001

And then we have the radio waves, they have the issues I've just mentioned.

These result in electromagnetic radiation ranging from radio waves to X rays, high energy protons and changes in the interplanetary solar winds.

I compared the radio waves spectrum the size of it with the size of the visible light spectrum.

25.5 The capacity of radio, as the medium that attracts the largest audience was dramatically strengthened.

Only visible light and radio waves from the cosmos can be detected at sea level.

News and magazine programmes are also distributed via telephone lines and radio circuits for shortwave rebroadcast by regional broadcasters.

They are commercially used in secondary batteries and coatings for shielding against radio frequency and electromagnetic interference.

Jansky had made a historic discovery, that celestial objects could emit radio waves as well as light waves.

The main innovations relate to the use of active antennae, miniaturization of radioelectric functions and the introduction of new frequency bands

Seven powerful, 13 low powered and two medium wave State radio and television stations operated in Lithuania.

Hafun's only communication to the outside world is through short wave radio.

The radiocommunication study groups are part of the ITU Radiocommunication Sector, which is responsible for studying technical, operational and regulatory procedural questions on radiocommunication, issuing recommendations and preparing the technical basis for radiocommunication assemblies and world radiocommunication conferences

The radiocommunication study groups are part of the ITU Radiocommunication Sector (ITU R), which is responsible for studying technical, operational and regulatory procedural questions on radiocommunication, issuing recommendations and preparing the technical basis for radiocommunication assemblies and world radiocommunication conferences

Message from our planes

(c) A radio science payload this includes X and K band transponders and an accelerometer

The communications package includes an S band downlink and amateur radio store and forward communications with an audio repeater to stimulate radio interest among schoolchildren.

Operation of telephone and telegraph radiocommunications system and transmission of radio programmes.

Operation of telephone and telegraph radio communications system and transmission of television and radio programmes

Another delegation, speaking on behalf of a large group, stressed that radio remained the most important and versatile information medium in the Caribbean and called for the strengthening of the Department s Caribbean Radio Unit.

Another delegation, speaking on behalf of a large group, stressed that radio remained the most important and versatile information medium in the Caribbean and called for the strengthening of the Department s Caribbean Radio Unit.

Big Bad Wolf is calling you on the wireless. Oh.

Base radio station, transceiver receiver

Is it a radio?

That blue line there is my brainwave.

D Dining room 71 Disabled, facilities

The atmosphere itself radiates at particular wavelengths (especially in the infrared).

So whilst inventing the technology that would usher in the telecommunications revolution, Watson had discovered that the star at the center of our solar system emitted powerful radio waves.

We use them to communicate, cook, and diagnose and cure disease. The unified theory of electromagnetism has led to profound advances across all physical science, from atomic physics (where lasers and masers are essential tools) to cosmology (where the microwave background radiation is our window on the Big Bang).

Radio

Empirical modelling of the ionosphere in the region of the Gulf of Mexico and the Caribbean for purposes of propagation of radio waves and navigation

Radio workshop power tools

We have 1.4 million expensively deployed, inefficient radio cellular base stations.

And mind you, most of the energy is not used to transmit the radio waves, it is used to cool the base stations.

In the field of radio astronomy, there were problems with artificial radio transmissions from orbiting satellites.