The ratio of the speed of a radio frequency wave within a cable or dielectric as compared with the same wave in free space.
The transmission speed of electrical energy in a length of cable compared to speed in free space. Usually expressed as a percentage. Test devices use velocity of propagation to measure a signal's transit time and thereby calculate the cable's length.
Velocity at which a wave propagates. Units are meters per second (m/s). It is equal to how far one point on the wave, such as the crest or trough, travels in 1s.
Speed of signal transmission. In free space, electromagnetic waves travel at the speed of light. In coaxial cables, this speed is reduced by the dielectric material. Commonly expressed as percentage of the speed in free space.
The speed with which a signal wave travels through a particular transmission medium. It varies as follows: Medium Speed, miles per second Light through space 186,284 Radio through air 142,000 Coaxial cable 133,000
The speed of an electrical signal down a length of cable compared to speed in free space expressed as a percent. It is the reciprocal of the square root of the dielectric constant of the cable insulation.
Velocity of Propagation (VoP) or velocity factor is a parameter that characterizes the speed at which an electrical or radio signal or the sound signal passes through a medium. Expressed as a percentage, it is the ratio of a signal's transmission speed compared to the speed of light in vacuum or the speed of sound. Thus, transmission in a vacuum would have a VoP of 100.