freq range of rf is 3hz (extremely low frequency) to 300Ghz (extremely high frequency)
number of occurrences of a repeating event per time.
Frequncy is the speed of an electrical wave through a conducting material.for example a wave of frequency 50 Hz takes 20 milli seconds(1/50) to complete one cycle.
The number of circular revolutions made by the charged particle in one second. f=1/T unit of frequency is Hertz
The cumulative frequency is the running total of numbers, such as,frequency cumulative frequency4 4 5 116 177 248 32