Question

Which of the following represents the usable range for Frequency Protection at different altitudes?

A) 18,000' AGL - 40 NM, 12,000' AGL - 25 NM
B) 18,000' AGL - 25 NM, 12,000' AGL - 40 NM
C) 18,000' AGL - 40 NM, 12,000' AGL - 40 NM
D) 18,000' AGL - 25 NM, 12,000' AGL - 25 NM

Answer 1

The usable range for frequency protection at different altitudes is determined by the altitude above ground level (AGL) and the distance in nautical miles (NM). At 18,000' AGL, the usable range is 25 NM, and at 12,000' AGL, the usable range is 40 NM.

Step-by-step explanation:

The correct answer is B) 18,000' AGL - 25 NM, 12,000' AGL - 40 NM.

The usable range for frequency protection at different altitudes is determined by the altitude above ground level (AGL) and the distance in nautical miles (NM). At 18,000' AGL, the usable range is 25 NM, and at 12,000' AGL, the usable range is 40 NM.

This means that at higher altitudes, the range of frequency protection is reduced, while at lower altitudes, the range is increased.