Radio frequency (RF) is a rate of oscillation in the range of around to , which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals.

Turn on the radio.

The radio will not work.

Television ( video ) signals are similar to audio signals.

Is this radio yours?

He likes to listen in to the radio.

These are only a few signs among many others.

I listen to the radio every night.

Dr Al Aila says on the radio, A girl is showing half a metre of her chest.

This makes the surface signals strong enough to measure, and distinguishes them from bulk signals.

Well, of course, as soon as anybody did look, which was after about 20 years, when radio astronomy really took off. Because it turned out the universe is absolutely full of all kinds of wonderful things radiating in the radio spectrum, much brighter than the Sun.

Traffic light systems and cement

On the radio, they said that it was going to be cold.

Credit Shuka Kalantari PRI

Radio, located at 6520 Hollywood Blvd.

But that's not the whole story, because there are signals, electrical signals, that travel along the branches of neurons and chemical signals that jump across from branch to branch.

Now Drake did not discover extraterrestrial intelligence, but he learned a very valuable lesson from a passing aircraft, and that's that terrestrial technology can interfere with the search for extraterrestrial technology.

Radio was introduced in 1969, TV in 1981.

Most rings have been discovered in the radio range.

Cady was president of the Institute of Radio Engineers in 1932.

They had red armbands on, she recalled.

The warning signs usually contain a symbol.

These measures were positive signs for foreign investors.

So the prices that financial markets generate are as likely to send the wrong signals as they are to send the right ones.

They had voice recorders and FM transmitters.

During the development of radio, he also worked on wireless telegraphy.

Daily radio services in Russian are also available throughout Israel.

The proceedings should be broadcast nationwide on radio and television.

This story was originally published by Global Voices' partner, Public Radio International.

Signs were written in the local language () symbolic signs, though long used on certain tradesmen's signs (like the pawnbrokers' tri ball symbol) were to be used for traffic only much later in history.

Included in this concept is also smart radio (also known as cognitive radio) technology to efficiently manage spectrum use and transmission power as well as the use of mesh routing protocols to create a pervasive network.

Indeed, brands send signals that facilitate the task at hand.

Talk radio is even worse, since it relies heavily on emotional opinion sharing.

The new radar also includes a new cooling system and Radio Frequency Tunable Filters (RFTF).

And no, there was absolutely no warning. No signs.

The unmistakable signs of Islamism continue in Aleppo.

Jacob Bernoulli makes references to Faulhaber in his Ars Conjectandi .

Thus, drugs that increase dopamine signaling may produce euphoric effects.

As a result, PAL M signals are near identical to North American NTSC signals, except for the encoding of the colour subcarrier (3.575611 MHz for PAL M and 3.579545 MHz for NTSC).

And after I gave them statistics, they said, Yes. Okay. You can use all the radio stations, television stations.

This radiation is much more energetic than the more familiar types such as radio waves and visible light.

Radio location, radio communication and radio guidance of aircraft were all developed at this time.

There are hints of firms responding similarly now.

Leptin is produced in the white adipose tissue and signals to the hypothalamus.

In addition, complex hand signals (called Arb) are used.