Top Answer
User Avatar
Wiki User
Answered 2011-07-27 12:13:30

An antenna is built and tuned specifically to resonate at a certain frequency or set of frequencies. In receiving, this resonance will appear as an RF voltage across the antenna, or between the antenna and ground. This RF voltage is usually modulated in order to carry information, for example a radio station. You generally use a receiver of some kind to "decode" this information, and make it usable to humans again, for example, play the music as audio through a loudspeaker.

User Avatar

Your Answer

Still have questions?

Related Questions

Is the receiving antenna radiate radio wave during reception?

A receiving antenna does "re-radiate" some of the power it receives, but not all. Some of the power it receives proceeds into the receiver ... which is the only way we detect the signal being received by the antenna.

What is the directional properties of antenna?

omni-directional is the opposite of directional. A directional antenna receives or sends more signal from or to the front than the sides or back.

What receives radio signal?

Radio receivers are designed to receive radio signals in conjunction with a receiving antenna.

What receives or transmits radio signals?


What does an antenna do?

Radiates and/or receives radio signals.

What is a broadcast repeater?

A television repeater can be a TV translator. It receives a distant station thru a receive antenna mounted high on a tower then re-broadcast this signal from transmit antenna(s) on a different channel, mounted on the same tower.

Laptop you get a wireless signal from a library across the street but your signal is very low sometimes no signal what can you do to get a better signal?

You could attach an external directional antenna. Google for 'wireless antenna'.

How does a radio signal go from a disc jockey speaking into a microphone at a radio station to your ear?

In the microphone, there is a diaphragm, which converts the DJ's voice into an electrical signal. This signal is sent along the wire to the antenna, which broadcasts it into the ether. Your home radio receives the signal through its aerial, then converts the signal from an electrical signal to audio - which is detected by your ear.

The of an antenna depends upon the frequency of the RF signal and the gain?

The size of an antenna depends upon the frequecny of the RF signal and the gain.

How do you get a stronger signal out of the computer router?

Replace the existing antenna with an active antenna.

Does a signal being transmitted from an antenna to a receiving antenna lose strength exponentially?


How do you use lecher antenna?

To get the wave signal

Why do you use antenna arrays?

To improve the signal :)

How can you kwow you have your tv antenna pointed for the strongest signal?

The on screen signal strength meter will help find the direction your antenna should point. Turn the antenna until you see the highest meter reading.

How signal reflects back in an antenna?

In a properly matched antenna, signal does not reflect back - the transmission line and antenna combination is seen, electrically, as an infinite line - so there is no reflection - again, when properly matched.

How does an antenna booster work?

An antenna booster takes in the antenna signal and reproduces it at a higher power. This will give you better reception and quality.

How do you convert an analog antenna to a digital antenna?

Put an digital receiver at the end of it. The antenna does not change to receive a digital signal, it is passive.

How do I tune my rabbit antenna?

Get the signal meter on screen then rotate the antenna to the spot the meter reads the highest, this is the point of most signal. Leave the antenna in that position. spreading the rods apart results in more gain.

What is the function of a antenna of the mosquito?

The mosquito's antennas are used to help them mate. A female sends out a vibrating signal, and the male can sense it with his antenna and send a signal back.

How does a digital antenna differ from a regualr antenna?

A digital antenna offers a clearer sound and signal than a regular antenna. There is no interference or static. However, while an analog antenna can get the signal through a hill, the digital antenna must be able to see the broadcast tower.**************************************************************There is no difference. An antenna is designed for a particular frequency or band of frequencies. The mode of modulation is totally irrelevant.

How is FM transmitted?

the digital signal is converted to analog signal after using by transmitted antenna

What is an active antenna?

An active antenna is an antenna which has an amplifier attached very closely to it. The antenna/amplifier system is called an active antenna. It is used for receiving signals only. The idea is to set the signal-to-noise ratio (SNR) before the signal travels along a transmission line where it is susceptible to interference and loss.

Can a magellan gps antenna prevent loss of signal?

While all GPS systems come with an internal antenna with which it uses to contact the satellites in orbit, there are accessories available. If you buy a antenna attachment, it can improve your signal quality.

Which type of signals are received by antenna?

The signal is 1080i

What are antenna amplifiers used for?

Antenna amplifiers are used to strengthen the signal being supplied to an appliance such as your TV. Amplifiers are necessary when the signal is weak and interferes with your TV reception.