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SOME kind of oscillator is required, to create the AC signal that will be modulated,

amplified, and eventually sent up to the antenna to be transmitted. It doesn't

have to be a crystal oscillator, though.

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Q: Why is a crystal oscillator required in a radio transmitter?
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What equipment uses a crystal oscillator in its operation?

Your quartz watch, your cell phone, all electronics that uses a computer inside. The quartz crystal forms the time base for the digital pulses. Crystal oscillators are also used in radio receivers and transmitters to provide accuracy in frequency selection. In a transmitter it provides the exitation frequency. In the receiver it provides the local oscillator in a superhetrodyne setup. Multifrequency devices (tunable and channelised radio) take the local oscillator and multiply and divide it, to provide a comparison frequency for a voltage controlled oscillator (VCO). The VCO is then controlled by a Phase Locked Loop (PLL) which holds the required frequency very accurately.


What section of a transmitter impresses the audio information on the radio wave?

AF modulator. Audio signals produced by the microphone get amplified enough with the power to modulate the RF carrier wave generated by a RF oscillator.


Can a radio receiver be located with a detector?

Yes, a radio receiver can be located with another receiver or tracer, most radio receivers is of the regenerative type and it has a local oscillator that is used to generate an intermediate (IF) signal of 465Khz on shortwave and 10.7Mhz on the higher frequencies like a FM or TV receiver, that oscillator is like a low power transmitter that is transmitting an un-modulated RF signal. Any nearby receiver can pick up this signal although no sound will be heard on the receiver, to be able to hear a signal the tracer is equipped with a BFO, (Beat Frequency Oscillator) that will generate an audible tone when a signal is received, the same way as the local oscillator generate the IF signal but only in the audible frequencies and a signal strength meter, then with a directional antenna, the receiver that is to be traced can be pin pointed.


How is the transmitter of a cellular telephone different from a powerful radio transmitter?

A radio plays music, and is not a phone. A telephone is used for talking between two persons.


What type of radio transmitter was used on the ship Titanic?

The Titanic used a Marconi designed spark transmitter.

Related questions

What equipment uses a crystal oscillator in its operation?

Your quartz watch, your cell phone, all electronics that uses a computer inside. The quartz crystal forms the time base for the digital pulses. Crystal oscillators are also used in radio receivers and transmitters to provide accuracy in frequency selection. In a transmitter it provides the exitation frequency. In the receiver it provides the local oscillator in a superhetrodyne setup. Multifrequency devices (tunable and channelised radio) take the local oscillator and multiply and divide it, to provide a comparison frequency for a voltage controlled oscillator (VCO). The VCO is then controlled by a Phase Locked Loop (PLL) which holds the required frequency very accurately.


Can an am crystal be used in a FM RC radio RC transmitter?

No


How do you make a radio transmitter on the Sims 2 Castaway?

by getting a transmitter and radio. then you press make radio into a transmitter. the transmitter and radio are both by the airplane in areoplane jungle, the transmitter is annoyingly hard to find as it is too small to see. The radio is big, however, and you should spot it right away. also ig you do this try using the transmitter on the volano or in crystal caves...


What is the purpose of an oscillator crystal?

"A circuit within a computer that creates a series of pulses that pace the computer's electronic system. The oscillator clock synchronizes, paces and coordinates the operations of the computer's circuit." -- webopedia


What are the elements of radio communication system?

There are many elements of a radio communication system. These elements include a transmitter, radio frequency oscillator, modulator, transmitting ariel, receiving ariel, demodulator, and amplifier.


What is the basic function of tuning capacitors?

The "tuning capacitor" in a radio is involved in determining the frequency of an oscillator somewhere in the radio. As that capacitance is varied, the frequency of the oscillator changes. If the radio device is a transmitter, then the frequency on which it's transmitting changes. If the device is a radio receiver, then the frequency of the internal "local oscillator" determines the frequency that will be selected, out of everything coming down from the antenna, and then processed, detected, amplified, and filtered, for your listening pleasure.


How do you change the frequency on a radio controlled car?

To change the frequency on a radio controller car, you change the crystal in the transmitter and receiver.


What came first radio or radio transmitter?

radio transmitter


The function of an oscillator in a radio transmitter is to?

There are typically at least two oscillators involved in the transmission aspect of a radio transceiver: one is the transmission oscillator which creates a cosine waveform modified with the input key (the information being broadcasted), the other is the variable frequency oscillator which allows one to select the desired frequency for communication. On most transceivers the VFO also modifies the receiving end of the device simultaneously.


How does radio transmitter works?

Summary: A radio transmitter works by converting electricity into radio-frequency energy, which is then converted to electromagnetic waves. Block by block... The most important components of a radio transmitter are the Oscillator and the Antenna. The oscillator makes the radio-frequency energy; the antenna converts it to electromagnetic waves for the receiving station to use. I say these are the most important components because you can build a whole radio transmitter with nothing but an oscillator and an antenna. There aren't many applications for such a transmitter--it can be a beacon, or if you turn it on and off fast enough you can send Morse code with it--but it's enough to put RF in the air. The next important part is the Modulator. This is the thing that lets a radio station play music instead of just sending out radio waves--it causes the radio signal to change in a way a receiver can use. It can either change the intensity of the wave--amplitude modulation--or the frequency--frequency modulation. They also put Amplifiers on radio stations, because you need a lot of power to transmit music or speech, and the oscillators made today don't put out very much of it. If you're listening to your radio and the announcer says he's on the "50,000 Watt KLMN" the amplifier is what gives him all that power.


When was Mühlacker radio transmitter created?

Mühlacker radio transmitter was created in 1933.


When did Mühlacker radio transmitter end?

Mühlacker radio transmitter ended in 1945.