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What Is a Computer modem made of?
A computer modem is made up of various components including a modulator, demodulator, analog-to-digital converter, digital-to-analog converter, signal processor, and a connection interface such as Ethernet or phone line. These components work together to modulate digital data from the computer into analog signals for transmission over a communication medium and then demodulate received analog signals back into digital data for interpretation by the computer.
What happens when you amplify an analog signal?
Well, when you amplify an analog signal, you're basically just making it louder. It's like turning up the volume on your favorite song, but instead of music, it's an electrical signal. So, you're boosting the strength of the signal without changing its fundamental characteristics. Just be careful not to crank it up too much or you'll end up with a distorted mess.
How could a digital signal from outer space be picked-up?
Radio "signals" are always analog, not digital. To send a digital signal, it must be converted to analog format, and then the received signal has to be re-converted to digital. So the Voyager and Viking space probes, for example, include a digital-to-analog converter attached to the radio transmitter, and the radio receivers here on Earth are routed through an analog-to-digital converter to make sense of them. You yourself may have such an "analog-to-digital" converter; they are called "modems", or "modulator/demodulator".
Will a digital tv still receive and process an analog signal from an outdoor antenna?
No. There will be no analog signal to receive and process from the outdoor antenna. The only signal coming from the outdoor antenna will be digital. When the conversion is complete. You will need to hook up your antenna directly to the TV. Your conversion box will be worthless as far as analog to digital is concerned.
Why analog signal convert into digital signal?
Because an analog signal takes up more bandwidth than the new digital format. By cutting off the analog signals and offering digital only, it frees up enough space on the network to offer services to a wider range of people. It also includes enhancements to the providers network. For example, faster internet speeds, more TV channels, and more features.
What is the difference between a cellular phone and a telephone?
In an analog phone, the mechanical energy of sound (speech) is picked up by a microphone (mic) and converted into an (analog) electrical signal. This signal is then put through whatever electronics stages are required (if any) to get the signal onto a phone pair for transmission to the receiver. In a digital cell phone, the mic picks up the sound and converts that into an analog electrical signal. That analog signal is then sent to an electrical stage called an analog-to-digital (A to D) converter. Once the signal is digitized, it can be treated as a data string and amplified and broadcast (to the cell hub) as such. An incoming call is a digital data string that is D to A converted in the phone and then the newly recovered analog signal is made to be heard by the user. The difference between the two is the conversion and re-conversion (analog to digital and digital to analog) in the digital cell phone.
Are there any VCRs that up convert?
There are upconverting dvd/vcr combos,but they don't upconvert the analog signal of the VCR.
Will your digital television that's receiving an analog signal from comcast be a clear picture digital signal when you go digital in 2009?
Only if you have a digital output on your cable box. If not, it'll end up being a digital signal, converted to analog and then reconverted by your TV back to digital. Besides, the digital changeover date is only for local television stations when they turn off their analog transmitters. This means that if you currently have cable or satellite with analog outp[uts, that aspect of it shouldn't change.
Is sine wave analog wave?
A: ANALOGUE IT can be AC or DC it is up to the application involved An analog signal can be a sine wave, a square wave a sawtooth wave or any other varying waveform
Why sine wave is represent in analog signal?
An analog signal is simply a quantity varying continuously over time..But because we are interested in information and communication, we are usually interested in rapidly varying signals that have some underlying periodicity. Therefore we use sin wave
Why same junction box is not used for digital and analog signals?
Signal crosstalk. Most specifically is high speed digital switching noise being picked up by analog circuits and upsetting their operation.
How do you alter the speed limiter on a Renault premium truck 420 hp?
If it's old enough to have a speed sensor setup which sends an analog signal straight to the ECM, then you disrupt the frequency of that signal. If it's current enough to be set up to where that analog signal gets converted to digital before going to the engine ECM, you need the software for it.
