Question

The transmitter and receiver are at a height of 15 m and are separated from each other by 500 m. If λ = 0.25 m at 900 MHz,

(a) calculate radius of First Fresnel Zone;

Answer 1

The radius of the First Fresnel Zone is approximately 14.41 meters.

Step-by-step explanation:

To calculate the radius of the First Fresnel Zone, we can use the formula:

• Radius = sqrt((λ * d1 * d2) / (d1 + d2))

where λ is the wavelength, d1 is the distance from the transmitter to the point of interest, and d2 is the distance from the receiver to the point of interest.

In this case, λ = 0.25 m, d1 = 15 m, and d2 = 500 m. Plugging in these values, we get:

• Radius = sqrt((0.25 * 15 * 500) / (15 + 500))
• Radius ≈ 14.41 m

Therefore, the radius of the First Fresnel Zone is approximately 14.41 meters.