Notes

Microwaves – These are frequency in giga hertz with a short wavelength and radio waves. These are used in radar system in aircraft navigation. These are produced in vacuum tubes (gunn diodes, klystrons and magnetons).

Microwaves – These are frequency in giga hertz with a short wavelength and radio waves. These are used in radar system in aircraft navigation. These are produced in vacuum tubes (gunn diodes, klystrons and magnetons).