coaxial line การใช้

• Besides, the coaxial line, " coax, " can carry large signal volumes only for short distances.
• A use for this is the combination of a symmetric dipole antenna with a coaxial line.
• Antec's technology uses what are known as hybrid fiber-coaxial lines that can carry voice, data and video.
• A similar technique is to use a slotted waveguide or slotted coaxial line to directly measure the wavelength.
• They separate the transmitter and receiver signals from each other so one antenna and coaxial line can be utilized.
• A short length of low-loss coaxial line is acceptable, but with longer lossy lines the additional loss due to SWR becomes very high.
• Some coaxial lines use air ( or some other gas ) and have spacers to keep the inner conductor from touching the shield.
• For instance, attenuators used with coaxial lines would be the unbalanced form while attenuators for use with twisted pair are required to be the balanced form.
• However, for a typical coaxial line application, we are interested in passing ( non-DC ) signals at frequencies for which the resistive skin effect cannot be neglected.
• A slotted line involves a waveguide ( or air-filled coaxial line ) in which a small sensing antenna measures the electric field along the transmission line " directly ".
• However, this is not the case in other technologies such as coaxial line, or twin-lead where the short circuit may actually be helpful for mechanical support of the structure.
• If a channel is not currently being transmitted on the coaxial line, the distribution hub allocates a new QAM channel and transmits the new channel to the coaxial cable via the fiber optic node.
• The resistive load for HOMs can be implemented by having loop antennas located at apertures on the side of the beampipe, with coaxial lines routing the RF to outside of the cryostat to standard RF loads.
• Coaxial lines are the norm for connections between radio transmitters and their antennae, for interconnection of electronic equipment where high frequency or above is involved, and were formerly widely used for forming local area networks before twisted pair became popular for this purpose.
• Supercomputers made by N-Cube Corp . can each store roughly 400 movies on digital hard drive disks and will be able to pump them out to as many as 6, 000 customers once Bell Atlantic has laid the fiber optic and coaxial lines to distribute video into homes.
• With the coaxial lines controlled by cable providers emerging as a likely pipeline for carrying high-speed Internet and other services into homes, consumer groups and others have been calling for measures to ensure that the owners of those lines-- in this case, Time Warner-- allow access to other providers of programming and content.