Frequency refers to the number of times a signal completes an entire cycle in one second. It is the capacity to cam the signal in a cable. A cycle is formed by circulating the Alternating Current (AC) signal from zero volts to one extreme and then back from the extreme to zero. The more cycles per second, the more noise the cable generates. Frequency is generally measured in Hertz (Hz). The audible frequency lies in the range of 20 Hz to 20,000 Hz. Category 5e cable has a maximum frequency of 100 MHz; on the other hand, category 6 cable has a maximum frequency of 205 MHz.