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To be "naturally" resonant, the antenna must have a physical length of one quarter of the wavelength of the radio waves used (or a multiple of that length, with odd multiples usually preferred). The capacitively loaded antennas used at low frequencies have extremely narrow bandwidths, and therefore if the frequency is changed the loading coil must be adjustable to tune the antenna to resonance with the new transmitter frequency. The radiation resistance of short antennas can be very low, as low a few ohms in the LF or VLF bands, where antennas are commonly short and inductive loading is most needed. To reduce losses due to high capacitance on long-distance bulk power transmission lines, inductance can be introduced to the circuit with a flexible AC transmission system (FACTS), a static VAR compensator, or a static synchronous series compensator. A defective transmission control module could be at blame. It is easy to set up a manufacturing unit of control cable as it falls within the small and medium enterprise category and there is a strong demand in the domestic and the international market for these products. C is the capacitance per unit length of the line. With loading coils of exactly the right inductance, neither capacitance nor inductance dominate: the response is flat, waveforms are undistorted and the characteristic impedance is resistive up to the cutoff frequency.



Without loading coils, the line response is dominated by the resistance and capacitance of the line with the attenuation gently increasing with frequency. Another type of loading coil is used in radio antennas. To reduce power lost in dielectric losses, the coil is often suspended in air supported on thin ceramic strips. To reduce skin effect losses, the coil is often made of tubing or Litz wire, with single layer windings, with turns spaced apart to reduce proximity effect resistance. The elevated currents waste energy by heating the wire, and can even overheat the transmitter. Short of that you should read up on them and try and imagine how they can make a contribution to the entertainment of your family. In order to meet the condition, what is control cable the choices are therefore to try to increase G or L or to decrease R or C. Decreasing R requires larger conductors. This cable of Stone's would increase the line inductance due to the iron content and had the potential to meet the Heaviside condition. The Heaviside condition is that the series impedance, Z, must be proportional to the shunt admittance, Y, at all frequencies.



By applying his operational calculus to the analysis of this network he discovered (1887) what has become known as the Heaviside condition. Heaviside (1881) represented the line as a network of infinitesimally small circuit elements. Heaviside considered, but rejected, this possibility which left him with the strategy of increasing L as the way to reduce distortion. Finally, Heaviside made the proposal (1893) to use discrete inductors at intervals along the line. The cutoff effect is an artifact of using lumped inductors. Cutoff is avoided by the use of continuous loading since it arises from the lumped nature of the loading coils. If the telephone line is subsequently reused to support applications that require higher frequencies, such as in analog or digital carrier systems or digital subscriber line (DSL), loading coils must be removed or replaced. John S. Stone worked for the American Telephone & Telegraph Company (AT&T) and was the first to attempt to apply Heaviside's ideas to real telecommunications. American early and middle 20th century telephone cables had load coils at intervals of a mile (1.61 km), usually in coil cases holding many.



In a cable system, the cables (assisted by other components such as pulleys and turnbuckles and bell cranks) carry the mechanical input from the pilot in the cockpit to the control surface (elevator and rudder on the tail plane and ailerons on the wings). Intervals of a kilometer allowed European systems to carry 2 Mbit/s. Excess of financial constraints in the building once again confirms the old adage: "A miser pays twice." Well, if the roof is devoid of aniobledeneniya systems will be able to "survive" the winter and spring, with sharp jumps in daily temperatures. Although many of the newer systems have done away with the serial port completely in favor of USB connections, most modems still use the serial port, as do some printers, PDAs and digital cameras. However, the loss of AppleTalk did not reduce the desire for networking solutions that combined its ease of use with IP routing. When AppleNet was cancelled in October, Sidhu led an effort to develop a new networking system based on the AppleBus hardware.


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