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A RF amplifier is a device for electrically amplifying the power of an electrical signal, typically, but not exclusively, radio frequency signals.
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
microphone............
When you convert digital signal to analog, it is called as an analog signal. The device used is called digital to analog converter.
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
You need a RF modulator to convert the signal to a (RF) TV channel. The audio and video quality will be lower doing this.
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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.
it is most likely the turn signal flasher
The size of an antenna depends upon the frequecny of the RF signal and the gain.
rf is must for modulation and demodulation.
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.
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.
It produces a high SWR (standing wave ratio) that limits the maximum RF (radio frequency) output.
The detector detect the audio signal in the received modulated RF signal, rectify it and filter the RF to ground and pass the pure audio to the next stage
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A RF amplifier is a device for electrically amplifying the power of an electrical signal, typically, but not exclusively, radio frequency signals.