# Transmission Line

The Transmission line is an engineered cable or other physical structure designed to transport electric currents in a contained way in basic terms. When the wires are long enough, the electrical field associated with them must be considered when determining the amount of voltage achievable over a given length of time.

To do this, the voltage that can be achieved is called the frequency of the electromagnetic field. A transmission line uses the principle of phase transfer in order to accomplish this task. The term phase transfer refers to one system’s ability to alter the voltage levels induced by another.

This process occurs when two conductors with opposite polarity connected at a point, and an alternating current flows through them. As the current changes, so do the voltage induced. The amount of voltage that can induce in any given length of cable depends on the number of times the alternating current has passed through the system. The bigger the number of times the current passes through the system, the stronger the voltage-induced field will be.

One important thing to understand about a transmission line’s frequency is that it is not a simple concept that can be directly measured or deduced from a data set. For the calculations to be accurate, the input and output frequencies must be known. Various factors need to considered in the calculation of these frequencies.

The length and diameter of the transmission line will determine the width of the electric field it generates. A wider field means a higher voltage and hence higher frequency. The length of the line connecting the power source to the main breaker box will also influence the generated field’s frequency. The distribution of this power over the area of the line and its location will determine the field’s frequency.