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What is a RF amplifier?
A RF amplifier is a device for electrically amplifying the power of an electrical signal, typically, but not exclusively, radio frequency signals.
Why the received signal in analog communication is distorted by the channel noise than that of digital communication?
If an RF signal is AM modulated with a analogue signal any noise will add or subtract to the amplitude of the RF signal and will be present in the audio signal after detection, also will the noise add itself to the audio signal, where as in digital communication a slight variation in the amplitude of the signal is of no concern because you only work with ones and zeros, it's high or it's low
How audio signal convert into electrical signal?
microphone............
What is it called when you convert a digital signal to analog?
When you convert digital signal to analog, it is called as an analog signal. The device used is called digital to analog converter.
What are the principles of mixing in electronic communications?
In receivers the received RF signal is mixed with the signal of a local oscillator of a different frequency and the intermediate frequency is then amplified by the IF stages normally 3 that resonate slightly off beat to filter out all harmonics and is then detected by the detector stage where all RF is filtered down to ground and only pure audio is then amplified In receivers the received RF signal is mixed with the signal of a local oscillator of a different frequency and the intermediate frequency is then amplified by the IF stages normally 3 that resonate slightly off beat to filter out all harmonics and is then detected by the detector stage where all RF is filtered down to ground and only pure audio is then amplified
How do you convert s video to composite video?
You need a RF modulator to convert the signal to a (RF) TV channel. The audio and video quality will be lower doing this.
What is C signal?
C singnal is for stop
Difference between IF and RF signal?
RF signal is coming from an antenna. So it contains electromagnetic waves. But when the signal is processed using electronics circuits, the range of frequency may not be sufficient. So that RF has to be convert to some other frequency acceptable by the circuit. And IF is the intermediate frequency used for tuning & other purpose.
Singnal ligts dont work on cavalier not a fuse what can it be?
it is most likely the turn signal flasher
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.
What is a rf scale?
A RF scale is a measurement scale used in radio frequency technology to quantify signal strength and power levels. It is typically used to determine the strength of a radio signal in decibels (dB) relative to a reference level. A higher RF scale value indicates a stronger signal, while a lower value indicates a weaker signal.
Is rf signal much more important for capturing or not?
rf is must for modulation and demodulation.
Can RF signal travel in air medium without antenna?
Yes. An antenna is only used to receive or send a signal. A RF signal travels throughout any air medium independently of the existence or not of an antenna. Of course you will need an antenna if you want to receive the signal (which has to have, by the way, more or less the same lenght of the wavelength of the RF signal), but the propagation of a electromagnetic wave doesn't need a physical support. You can see an example with the radiotelescopes. They receive signals which come from the outer space without any physical support. Electromagnetic waves (and RF signal is one kind of them) doesn't need any physical media to travel (they travel in vacuum too!)
Is an rf power amplifier useful in the home?
The answer to whether an RF power amplifier is useful for your home depends on the qualifty if your equipment. If your T.V. is getting a weak signal for example, an RF power amplifier may be useful to get a better signal.
What occurs whenever a reflected RF signal combines with the main signal?
It produces a high SWR (standing wave ratio) that limits the maximum RF (radio frequency) output.
Where can one obtain an RF signal generator?
You can obtain a RF signal generator from a variety of locations. You can try your local electronics store. If they do not stock it you can try places such as Amazon or eBay.
At what speed does an RF signal travel in space and how does it compare to the speed of light?
An RF signal travels at the speed of light in space, which is approximately 299,792 kilometers per second. This means that RF signals travel at the same speed as light in a vacuum.
