Question

The waves used for line-of-sight $(LOS)$ communication is

• A. ground waves
• B. space waves
• C. soundwaves
• D. sky waves

Answer 1

Answer: (B)

space waves

Answer 2

The space waves are the radio waves of very high frequency $(30 \,MH _{2}$ to $300 \,MHz$, ultra high frequency $(300\, MHz$, to $3000 \,MHz$ ) and microwave (more than $3000 \,MHz$. Thus, space wave propagation can be utilised for transmitting high frequency $TV$ and $FM$ signals.