Generally it isn't possible to send two video signals on a single wire although there are instances where it can happen.
Video over Ethernet allows multiple signals to be sent in packets although the nature of Ethernet means that the signals will each have a delay so synchronizing the signals may be difficult.
Video over CAT5 uses converters that take a video signal and modify it to run over a single pair of a CAT5 cable. Normally, two more pairs would be used for stereo audio. If mono audio is used, it is possible to run two composite video signals with audio down one cable. Note that video over CAT5 uses the same cable as Ethernet but employs a very different signal format to Ethernet.
Composite video signals use a single cable but in fact, the signal has three separate video components encoded into the signal. The signals are one for brightness and two for color information. Together they make up a full color signal and can be separated into the three components at the far end. Although the cable carries three signals, remember that they are all parts of the same color signal so this probably doesn't qualify as two signals.
Finally, cable broadcasters use encoding systems to allow numerous signals to be carried on a single cable. The one that enters a house to supply a cable receiver carries many signals with just one being decoded and output by the receiver. This takes complex hardware at both ends so is outside the scope of most home users.
No, DVI cables do not carry sound. They are designed to carry just video signals, therefore you will need a separate audio connection to hear the sound. If you have an HDMI connection, then you can use this to carry the video and the sound down the same cable.
A HDMI cable will send audio and video down one cable.
A short (where one wire touches another) in a speaker cable may cause the speaker to simply not work, but usually causes the Panasonic system to shut down. A short inside the Panasonic system is unlikely, unless something was dropped into the cooling vents. If it is still working, but one speaker is not, it could be a break in the cable or a blown speaker.
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Down! Up!Down! Up!Down! DowDoDown! Up!wn! Up!n! Up!Up! DOWN UP DOWN UP Evaporation goes up, but the rain falling goes down.
A HDMI cable will send audio and video down one cable.
Cable impedance is one of the characteristics that define how the cable will transmit signals. There are some simple and some far more complex descriptions of transmission lines on the Internet that describe the feature in more detail. For the normal user, it is sufficient to know that video signals over co-ax cable will use 75 ohm cable. Most data signals that use co-ax cable will use 50 ohm cable. Generally, the source of the signal will have an impedance equivalent to the characteristic impedance of the cable. Similarly, at the end of the cable, the same value of impedance is needed. When the cable is terminated properly, the signal will be transferred to the end of the cable without it reflecting back down the cable. It is the reflections that cause ghost images or smearing on a television image. As the length of cable increases, it becomes more important to make sure the correct impedance of cable is used with the correct termination.
No, DVI cables do not carry sound. They are designed to carry just video signals, therefore you will need a separate audio connection to hear the sound. If you have an HDMI connection, then you can use this to carry the video and the sound down the same cable.
A HDMI cable will send audio and video down one cable.
Yes you can, but the cable isn't really right for video signals. Even the composite video signal that is normally carried by one of the three cables suffers over a long length. The best thing to do is to plug it in and try it. If vertical edges on the image appear slightly smeared, it may well be down to the cable and a new cable is called for. Have no worries - you won't damage anything by using the cable. The right cable to use, if you have a choice is 75 ohm coax. RG59 and URM70 cables will do the job although there are many others with higher spec (and price) that you can choose from. If you have to buy a pre-terminated cable, then choose the fattest cable you can find. It's not a scientific way of choosing the cable, but the diameter is normally an indicator of the quality of cable.
S-Video is a type of composite video signal. The 4 pins are Chrominance, Luminance, and 2 grounds. Your standard composite video cable combines Chrominance and Luminance into one signal, which is then separated again by the TV. An S-video cable removes this step. The "y, pB, pR" cable set is known as "component" video. this cable goes one step further than S-Video, breaking down the Chrominance signal to individual colors, using Red (pR), Blue (pB) and Luminance (y). The TV then uses additive and subtractive methods to determine Green.
Cable TV was invented as a response to poor over the air reception. In 1948, companies in Arkansas, Oregon, and Pennsylvania started sending TV signals down coaxial cables.
Time Domain Reflectometers can be used to locate where an underground cable fault lies. Time Domain Reflectometry (See wikipedia) is a measurement technique to identify the location using reflected signals sent down the cable line.
A s-video cable provides a connection for Super Video, which is a higher quality video signal than the more common composite video (usually the yellow phono jack marked Video). The Super Video signal provides two components of the composite video signal separately for better resolution and color rendition. The two components, luminance (Y) and chrominance (C), are carried on two parallel coaxial wires in the s-video cable. The four pins in the connector are for Y, Y ground, C, C ground.
This is called action potential. Action potential is the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals.
The nerve cell tune down the volume of signals by contracting.
Copper wire passes computer communications through the use of modulated carrier waves. RF energy is susceptible to resistance which reduces the signal over distance according to the Rho value of the copper wire. The longer the wire the higher the resistance the less signal is received at the other end. Secondly, being an RF signal, copper wire is susceptible to receiving signals from other sources which can cause interference though inter-modulation products caused by phase sum and difference between competing signals. Thirdly, RF signals are subject to standing waves which are caused by mismatches between feeders. This mismatch can prevent the signal from leaving the feeder (Copper wire) which in turn can prevent the signal from being received at the other end and cause the transmitter amplifier to become stressed and fail. Finally, copper wire is limited in the speed of the signal which can be transmitted. Fibre optical cable With multi-frequency fibre cables multiple signals can be sent down one cable at one time. Dependent on the purity for the fibre cable there is very little optical resistance runs of over 20km can be easily achieved. There is no transmission frequency limit to light. There is no standing wave problem. There is no interference problem from external sources. Fibre bundles carry more signals that the equivalent copper wire bundle in less physical space.