In order to understand the CCNA wireless topics it's very essential to go through the following basic wireless physics concepts terms. So I have just added the notes and an image for every term to help to understand the topics better.

The number of times the signal makes one complete up and down cycle in 1 second.

Frequency is related to bandwidth as it tells how many cycles per second.

The wavelength is a measure of the physical distance that a wave travels over one complete cycle. Wavelength is usually designated by the Greek symbol lambda (λ). The wavelength decreases as the frequency increases.

**Frequency**The number of times the signal makes one complete up and down cycle in 1 second.

Frequency is related to bandwidth as it tells how many cycles per second.

**Wavelength**The wavelength is a measure of the physical distance that a wave travels over one complete cycle. Wavelength is usually designated by the Greek symbol lambda (λ). The wavelength decreases as the frequency increases.