What is the frequency range of UHF signals?
A. 3 MHz to 30 MHz
B. 25 MHz to 3 GHz
C. 300 MHz to 3 GHz
D. 300 kHz to 3 MHz
Please scroll down to see the correct answer and solution guide.
Right Answer is: C
SOLUTION
The frequency spectrum for the complete range is:
|
Name |
Frequency Range |
|
Very low frequency (VLF) |
0.003 MHz – 0.03 MHz |
|
Low frequency (LF) |
0.03 MHz – 0.3 MHz |
|
Medium frequency (MF) |
0.3 MHz – 3 MHz |
|
High frequency (HF) |
3 MHz – 30 MHz |
|
Very High frequency (VHF) |
30 MHz – 300 MHz |
|
Ultra-High Frequency (UHF) |
300 MHz – 3000 MHz |
|
Super High Frequency (SHF) |
3000 MHz – 30,000 MHz |
|
Extra-High Frequency (EHF) |
30,000 MHz – 3,00,000 MHz |
Important Notes:
Generally, the UHF band is used for TV transmission.
The signals having UHF (30 - 3000 MHz) are propagated through line-of-sight communication, which is nothing but space wave propagation, i.e. frequencies in the UHF range propagate by means of space waves.
This is explained as shown:
