RF Signals and Modulation
Frequency
Number of times the signal makes one complete cycle in a second. Measured in Hertz (Cycle per second).
Radio Frequency = 3kHz to 300 GHz.
2.4 GHz band: From 2.400 to 2.4835 GHz. Has a total of 14 channels (1 to 14) spaced 0.005 GHz (or 5 MHz) apart.
5GHz Band:
- 5.150 to 5.250 GHz
- 5.250 to 5.350 GHz
- 5.470 to 5.725 GHz
- 5.725 to 5.825 GHz
Signal bandwidth – the actual frequency range needed for the transmitted signal.
Phase
Phase – measure of shift in time relative to the start of a cycle.Measured in degrees.
In Phase – two identical signals are produced at exactly the same time and have matching cycles.
Out of Phase – Signal that is delayed relative to the other.
Wavelength (λ)
Physical distance that a wave travels over one complete cycle.
CyberSecFaith 