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Which method of signal transmission uses radio waves to carry signals?
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∙ 13y ago
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∙ 13y ago
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Does s video cables carry audio signals?
No. They only carry separated color signals.
Advantage of digital signal?
Higher immunity to noise, storage of digital signal is cheap and easy, its representation is only using two levels as opposed to infinite levels for analog
What happens when you amplify an analog signal?
Well analog is usually used to carry sound so amplifying the analog signal would make it louder.
What are the Three types of physical cables that carry a signal?
fiber optic cables, coaxial cables, and twisted pair cables.
What type of 10-gigabit ethernet can carry signals the farthest nearly 25 miles?
It would be 10Base-ER. It has a maximum rang of 40 Kilometers witch is 24.4 miles.
What method of signal transmission uses radio waves to carry signals?
The analog method of signal transmission uses radio waves to carry signals. Digital transmission involves the use of satellites to transmit signals.
What is digital signal?
There are many forms of digital signals PWM, PAM, and more Basically is a signal that carry information to be extracted to its original form.
What type of neurone carry electrical signal to the brain?
Afferent neurons (also called sensory neurons) carry signals to the central nervous system and the brain. Efferent neurons (also called motor neurons) carry signals from the brain.
What nerves carry signals to and from the eyes and ears?
The oculomotor nerve or the third cranial nerve, trochlear or forth cranial nerve and abducent or the sixth cranial nerve carry signal to your eye. The optic nerve carry the signal from the eye to the brain. Vestibulocochlear or the eighth cranial nerve carry the signal from your ear to the brain.
What carries information in the form of electrical sighals?
Signal curcuits are used for many different purposes. Wires carry electrical signals.
Does an S Video cable also carry audio?
S-video is a two part video signal carrying luma and chroma signals (Brightness and color signals). There is no audio signal in an S-video connection so the audio will need a separate connection to operate.
What is signal bandwidth?
Every line has an upper limit and a lower limit on the frequency of signals it can carry. This limited range is called the bandwidth. The signals ranging within the upper limit & lower limit are called bandwidth signals.
How do electromagnetic waves carry sound as electrical signals?
The electromagnetic wave is "modulated" (changed) to represent the signal. For example, in AM (amplitude modulation), the strength (amplitude) of the wave is increased or decreased, according to the signal.
What converts analogue signals to digital signals for transmission over telephone lines?
Actually you have this backwards, the telephone lines can only carry analogue signals (voice band, 20Hz to 3KHz) not digital signals.The device that converts digital signals to analogue signals for transmission over telephone lines is called a phone MoDem(this stands for phone modulator demodulator). At the opposite end of the line it of course converts the telephone analogue signals back to digital signals.
What is a signal transduction pathway?
A signal transduction pathway is a group of proteins that carry out transducing signals (which means it converts signals from outside the cell to a different signal inside the cell). A good example can be viewed when a hormone binds to the receptor in the plasma membrane (outside the cell), the receptor which has now been activated can now interact with intercellular proteins which produce new signals inside the cell.
How do waves carry signals?
Waves can be varied (modulated) by either changing amplitude (amplitude modulation AM) or changing frequency (wavelength) (frequency modulation FM). The modulations are used to carry the information signal.
What is coposite video signal?
A composite video signal is a color video signal carried on a single cable. Color video signals have three separate components plus synchronization signals. They would normally require three separate cables to carry a brightness signal (with synchronization signals) and two color signals. Composite signals combine the brightness (luminance) signal with the two color (chrominance) within a single signal. The color encoding follows certain standards - PAL in UK and most of EUrope, NTSC in North America. Composite signals were developed prior to color television broadcasting with the main aim of allowing black and white televisions to receive a color signal. The encoding technique was patented in 1938, almost a decade before commercial color broadcasts began. In the early days of color television broadcasts, most televisions were black and white and it was not practical to build a completely new transmission infra-structure for the limited number of color televisions. Since the 1950s color television has been broadcast in composite format and has not changed since. It is only in the 21st century that HD television is introducing a new signal format. Today, composite is considered to be the lowest quality available. S-video, component, RGB and HDMI all offer higher quality signals. Despite the alternatives, composite signals have remained in common use because the difference is quality is not great and they provide a simple convenient method to connect equipment.
