PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
3 kHz to 300 kHz
|
|
|
300 kHz to 3 GHz
|
|
|
3 KHz to 300 GHz
|
|
|
3 KHz to 3000 GHz
|
Detailed explanation-1: -Radiofrequency (RF) fields fall within a portion of the electromagnetic spectrum with frequencies ranging from 3 kHz to 300 GHz, below that of visible light and above that of extremely low frequency electromagnetic fields.
Detailed explanation-2: -Ultra high frequency (UHF) refers to the band of electromagnetic radiation with a radio frequency range between 300 MHz and 3 GHz (3000 MHz). This band is also known as the decimeter band, with a wavelength ranging from 1 m to 1 dm.
Detailed explanation-3: -Ultra-high frequency (UHF) designates the ITU radio frequency range of electromagnetic waves between 300 MHz and 3 GHz (3, 000 MHz), also known as the decimetre band or decimetre wave as the wavelengths range from one to ten decimetres; that is 1 decimetre to 1 metre.