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You need to make a distinction between analog and digital signals, and analog and digital data. Digital data can be sent on an analog signal by using a modem. Digital data sent on a digital signal is done over a wire using voltage pulses at two or more levels. Digital signals can't travel very far without amplifiers, but analog signals can cover huge distances, such as with satellite communications and even communications with deep space probes.
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∙ 9y ago
Wiki User
∙ 10y agoanalog
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In wireless analog or digital signal travel?
Analog and digital signals can both be transmitted wirelessly. Wireless internet (Wi-Fi), for instance, uses digital. AM and FM Radio uses analog. Cell phones are digital. Cordless phones can be digital or analog.
What are analog and digital modes of operation of an instrument?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission. In digital communication, the message signal to be transmitted is digital in nature. This means that digital communication involves the transmission information in digital form Example: ASK, FSK, PSK.
How has the telephone been improved with technology?
Some improvements have been lighter phones, call waiting, caller ID, and conference calls. There have also been advances that help businesses. At the company I work with all the phones are hooked into the computer terminals and they run with a program on the terminal. Open it up and you get a listing of every employee and you just have to click a button to dial their number. I don't know if this really falls under your question, but theres been advances in telephone AI. Instead of having people take your calls a program can look for key words of your question and find the information you need much faster. By next year a person will not be able to tell if they are talking to a human or a program, unless the developer is asked to make the voices sound more robotic.Hope this helps.AnswerTelephone conversations started as analog signals over wires. Later, many of the signals were transmitted long distance by microwaves through the air. For several years now, the user's voice travels as digital signal over most of the distance. The normal analog telephone is connected to the CO (central office) through copper wires. This portion of the conversation is in analog form. The analog voice is converted to digital form in the CO and it travels as high speed data to the destination CO, where it is converted back to an analog form to be sent to the end user. More and more analog telephones are being replaced by digital telephones. The digital telephone converts the users analog voice signal from the microphone to a digital signal inside the telephone itself. The digital data then travels to the destination user with very little chance for noise or distortion to affect its quality. The signal is often so good that you often don't know if the connection has been lost or not without the usual hiss and static that we are accustomed to. The digital signals on the public phone system travel by microwave over land, from ground stations to satellites, or as light waves over optical fiber or through the air. Light communications by air are only for short distances. Companies like Vonage, Skype, Covad, and Speakeasy provide what is called VoIP or Voice over Internet Protocol. With VoIP, you can make a call using several methods.One is by using your computer to convert your analog voice to digital and then transmitting the digital conversation over your digital Internet connection.Another VoIP method is by connecting your regular analog telephone through the service provider's 'black box'. The box is a device that has its own small computer inside which manages the telephone conversation, communicating with the Internet to find the service provider's server. The voice signal is converted to digital form. The controller then sends the conversation through the VoIP server to the destination user. If the destination user has a VoIP telephone connection they receive the conversation in digital form. If the destination user has a regular analog connection, the digital conversation data must first be converted back into analog form. This can be done in the CO through special equipment designed for this purpose.Yet, another VoIP method is by using digital telephones on a digital data network. The digital phones can communicate through a VoIP PBX (private branch exchange)to the Internet or directly to the service provider out on the Internet.Having the conversation in digital form enables several new options. The digital data sent over the network can be saved to a hard drive for later retrieval. Because the signal is digital, it does not degrade with time like an analog signal recorded on magnetic tape. The digital voice can be analyzed by special algorithms to detect stress and other nuances not discernable to the human ear. The digital voice can be manipulated to make it sound robotic, change its gender, or any of hundreds of other effects. Special features can be supported by adding additional data to the data stream. Much more information can be transmitted than that available by the regular Caller ID. Live digital video images can be transmitted along with the voice data. Business presentations can be sent along with the presenter's voice and live video to several remote locations in branch offices.The traditional analog telephone is converging with the computer data network, entertainment networks, and others.There are many changes ahead on the horizon.AnswerTelephone system today integrates the internet and telephone technologies in order to achieve a more efficient an cost effective communication system. Virtual PBX phone system for example allow users to enjoy the benefits of VOIP and the traditional phone systems at the same time.they made cell phones, and more equipped than the old ones
Can you have a radio signal underground?
Yes, you can however the distance that a signal may be travel depends on the power and frequency of the signal. For signals at the same power a lower frequency signal will travel further.
What is regenrative repeater?
A: Signal travel in a line of sight on mountains there are repeater to by pass the mountain to the next town, A regenerative repeaters will restore this signal before it send it out again
In wireless analog or digital signal travel?
Analog and digital signals can both be transmitted wirelessly. Wireless internet (Wi-Fi), for instance, uses digital. AM and FM Radio uses analog. Cell phones are digital. Cordless phones can be digital or analog.
Analog & digital communication?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission. In digital communication, the message signal to be transmitted is digital in nature. This means that digital communication involves the transmission information in digital form Example: ASK, FSK, PSK.
What are analog and digital modes of operation of an instrument?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission. In digital communication, the message signal to be transmitted is digital in nature. This means that digital communication involves the transmission information in digital form Example: ASK, FSK, PSK.
How analog signals are different from digital signals?
An analog signal is a signal of varying amplitude. The signal can be: Light of different intensity Light of different colour Varying voltage like that produced by an MP3 player or Computer Soundboard. Varying levels of radiation We can easily compare the Analog signal with waves on the ocean. They go up and down and can vary in speed, size and intensity. Digital signals are very different. Digital signals are either on or off. In light, we either have light on, or we do not have light. Analog measuring is often a part of describing when a digital signal is a zero or a one. We measure for levels of light, or levels of voltage to define whether the signal is supposed to be interpreted as a zero or a one. This makes digital signals very resistant to background noise and they can travel very far with little or no degradation. Digital signals are very suitable for transferring information. This is actually what they are all about. Analog and digital signals go these days hand in hand when it comes to music. We transform an analog signal into its digital representation and by recording the digital information we do not get loss of information.
What are analog and digital signals?
Analog radio signals cause characteristic changes, or modulations, in the radio waves that carry them: amplitude modulation (AM) and frequency modulation (FM). An old technology compared to newer digital signals such as satellite and high definition radio, differences that distinguish analog radio from digital radio include signal characteristics, sound clarity and cost.Type of Signal Transmission1. Carrier waves -- invisible forms of electricity and magnetism that travel wirelessly from radio broadcasting stations to radio receivers -- transmit AM, FM and digital HD radio programs. Digital signals transmit via pulses or digits of binary code, a language based on the numbers 0 and 1, before decoding.Clarity of Sound2. FM analog radio signals encounter interference when large objects such as mountains or buildings enter the intended path of travel, and cannot bend, unlike AM analog signals. An interrupted analog signal results in a crackling, unclear radio station. Digital radio signals generally don't experience interference errors, although bad weather can severely affect satellite stations.Cost3. Most perks have a catch. Satellite radio plays very few commercials, but there's a subscription fee and you must buy a satellite specific receiver. While free, traditional AM/FM radio and HD radio include commercial advertisements. To hear HD radio, you need a specific HD receiver. Digital HD receivers can play both analog and HD radio stations, but traditional analog receivers can stream only AM/FM stations.
Exampl for analog communication?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission.
How far does a digital tv signal travel from a tower?
That truthfully depends on the transmitter's transmitting power, height of the transmitting antenna and the terrain.
What are the differences between broadband and baseband?
Baseband Signalling: 1)Uses digital signalling 2)No frequency-division multiplexing 3) Bi-directional transmission 4)Signal travels over short distances Broadband Signalling: 1)Uses analog signalling 2)Unidirectional transmission 3)Frequency-division multiplexing is possible 4)Signal can travel over long distances before being attenuated
How VoIP Works?
VOIP is most commonly used terminology now-a-days which stands for "Voice over internet Protocol", which uses broadband internet rather than the public switched telephone network (as in traditional phone services). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression and translation of the signal into Internet protocol packets for transmission over the Internet.Visit www.voipnetcompare.com for more information, deals and questions about VOIP.
MODEM stands for?
It comes from the term MOdulator DEModulator.A modem converts a digital signal from a computer into an analog signal, so that can be transferred down a telephone line and then at the other end it is converted back into a digital signal so that it can be sent into the receiving computer. These two processes are known as modulation and demodulation.A modem is a Modulator and Demodulator. It's like a bridge between computer and ordinary telephone lines. Telephone lines only accept analog signals but computers only accept digital (binary) signals so modems help link them.The data is changed to represent 2 audio frequencies. These noises are superimposed onto a phone line audio. This is known as 'modulation'. The incoming signal of course has to be changed back again to binary data, this is known as 'demodulation'.The word modem is shorted for "Modulator-demodulator" referring to it's original use.Modem = MoDem = Modulator + DemodulatorModem is the device that modulates digital signals from Internal Network into analog signals onto analog lines towards ISP & demodulates analog signals into digital signals for use in Internal Network.
Which travels faster an digital video signal or audio signal?
Depends. If they're all encoded for transfer by electronic means(radio, fiber, wire) they'll all travel at the same speed. But if you by audio signal mean sound in the air, then sound travels at about 700 miles an hour. A digital signal - electrical/optical - travels at the speed of light (186,282 miles per second) down a fiber network.
What is a dialp-up?
Dial-Up is a type of internet connection, using a telephone modem and telephone wire connected to your dial up host, or ISP (internet service provider). It is extremely slow and in some way sprimitive. DSL works in the same manner but uses a fiber optic channel to travel on and is often times much quicker as it is a digital signal rather than analog, hence why you need a modem to convert the signal to a readable format.
