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What is the purpose of an AF power amplifier in a FM broadcast receiver?
Wiki User
∙ 11y ago
After FM demodulation to the original AF signal it is necessary to amplify the weak AF signal to have enough power to drive speakers. That is the purpose.
Wiki User
∙ 11y ago
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What are the switched and unswitched AC plugs on my receiver?
Switched power means the AC power will be lost if the receiver is on standby. In unswitched, the power will be supplied even if the receiver is on standby. Regards, Raghu
How radio works step by step?
Exciter Power amplifier Input filter/amplifier Demodulator Audio processor
What is the function of the amplifier in a transmitter?
used to increase the power level of the transmitting signal
What is a Preamp?
PreamplifierA preamplifier (preamp) is an electronic amplifier which precedes another amplifier to prepare an electronic signal for further amplification or processing. Description In general, the function of a preamp is to amplify a low level signal (possibly at high impedance) to line-level. A list of common sources would include a pickup, microphone, turntable or other transducer. Equalization and tone control may also be applied. In a home audio system, the term 'preamplifier' may sometimes be used to describe equipment which merely switches between different line level sources and applies a volume control, so that no actual amplification may be involved. In an audio system the second amplifier is typically a power amplifier (power amp). The preamplifier provides voltage gain (about: 10millivolts to 1volt) but no significant current gain. The power amplifier provides the higher current necessary to drive loudspeakers. Preamplifiers may be: •incorporated into the housing or chassis of the amplifier they feed•in a separate housing•mounted in other pieces of equipment, such as turntables, microphones and electric basses.•close to the signal source, remote from the next amplifier -- eg: beside hi-fi system, then feeding into a computer in the home office. Examples •the integrated preamplifier in a foil electret microphone.•the first stages of an instrument amplifier.•a stand-alone unit for use in live music and recording studio applications.•as part of a stand-alone channel strip or channel strip built into an audio mixing desk.•a masthead amplifier used with television receiver antenna or a satellite receiver dish. http://www.answers.com/preamplifier?cat=technology
1992 GMC Sierra with radio problems It has power but no audio Any ideas?
It is probably the output amplifier chip.
I want to buy surround with sub speakers and receiver what kind of anp do i need to power all these speakers?
The receiver is the amplifier for all the speakers, except usually the sub, which is most common with its own amplifier.
What are the steps when a radio message passes through between the sender and receiver?
Exciter Input filter/amplifier Demodulator power amplifier audio processor
Can you hook up an amplifier for a car to a AV receiver for a home theatre system?
It depends on the specific models of each, but typically, Yes. Of course you will need a 12VDC power supply for the amplifier, though. You will also need a AV receiver with a preamp output. You cannot run speaker level outputs into the input of an amplifier.
What is a home theater receiver composed of?
A receiver is one component. It is composed of a power amplifier, radio tuner (usually), surround sound decoders, and audio and video switchers (and possibly scalers).
What are on-the-body hearing aids like?
feature a larger microphone, amplifier, and power supply inside a case carried inside the pocket, or attached to clothing. The receiver attaches directly to the earmold; its power comes through a flexible wire from the amplifier
What is a pre out on a AV receiver?
A pre out or preamp out is a line level output of the sound that is coming out of the receiver. It is controlled by the volume control, and allows you to connect another external power amplifier to increase the power of the system or allow the connection additional speaker systems,
Can a power amplifier amplifies the power?
Question: Can a power amplifier amplify the power? An amplifier can amplify the voltage or the current. Power can be converted to heat.
Is amplification the act of tuning a radio to select a particular broadcast station?
Amplification is the process of making a signal louder. It is not the same as tuning a radio receiver. An amplifier is a device that takes a signal and makes it bigger as it reaches the amplifier's output. It can make the signal bigger by increasing the voltage, increasing the current or increasing both current and voltage, known as power amplifiers. Audio amplifiers that drive a loudspeaker are power amplifiers as they increase the power of the signal to drive the speaker itself. Tuning a radio adjusts the frequency that the radio aerial is sensitive to and allows only one frequency to be captured by the circuit attached to the aerial. By doing this, the radio can pick up a single broadcast and reject others. Before we can hear the received radio signal, it will be passed through a power amplifier and then to the speaker.
How does power amplifier differ from a conventional voltage amplifier?
A voltage amplifier does not have to supply significant current bur a power amplifier does.
Can you connect a receiver speaker jack using banana connectors to wireless headphones using audio cable with rca jacks?
No. The wireless transmitter is expecting a line level input. The banana plugs are power amplifier level, and you will damage your transmitter. If you add the model of your receiver/amplifier into the discussion tab above, we can tell you where to connect it.
Is transformer an amplifier?
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
What is the function pre amplifier?
To increase the signal-to-noise ratio of an audio signal prior to input into the main amplifier. The SNR is generally increased using a differential amplifier. Oftentimes this is unnecessary, and the purpose of the preamplifier is to increase the signal voltage prior to amplifying the current in the power amplifier stage.
