To increase coverage area, which frequency band is preferred over the other?

To increase coverage area, which frequency band is preferred over the other?

• A. 5 GHz over 2.4 GHz.
• B. 900 MHz over 2.4 GHz.
• C. 2.4 GHz over 5 GHz.
• D. 60 GHz over 2.4 GHz.

Answer: (C)

Lower frequency bands travel farther and penetrate walls and obstacles better, which increases the coverage area. When you compare 2.4 GHz and 5 GHz, the 2.4 GHz signal experiences less path loss over the same distance and handles obstacles more effectively. That means you can cover a larger area and have fewer dead zones with the same transmit power, at the expense of having less available bandwidth and potentially lower data rates. The other options push to higher frequencies (60 GHz) with very short range and line-of-sight requirements, or use a band (900 MHz) that isn’t typically used for standard Wi‑Fi, so 2.4 GHz over 5 GHz is the better choice for broader coverage.

Lower frequency bands travel farther and penetrate walls and obstacles better, which increases the coverage area. When you compare 2.4 GHz and 5 GHz, the 2.4 GHz signal experiences less path loss over the same distance and handles obstacles more effectively. That means you can cover a larger area and have fewer dead zones with the same transmit power, at the expense of having less available bandwidth and potentially lower data rates. The other options push to higher frequencies (60 GHz) with very short range and line-of-sight requirements, or use a band (900 MHz) that isn’t typically used for standard Wi‑Fi, so 2.4 GHz over 5 GHz is the better choice for broader coverage.