What is the VOR service volume for High altitude (H)?

What is the VOR service volume for High altitude (H)?

• A. T - 25 NM
• B. L - 40 NM
• C. H - 130 NM
• D. MON - 100 NM

Answer: (C)

VOR service volumes define how far the signal is reliably usable from the station, depending on altitude. At high altitude, the signal can be received farther away, so the High altitude service volume extends to 130 nautical miles. That’s why 130 NM is the correct choice. For reference, terminal is about 25 NM, low altitude about 40 NM, and military MON about 100 NM.

VOR service volumes define how far the signal is reliably usable from the station, depending on altitude. At high altitude, the signal can be received farther away, so the High altitude service volume extends to 130 nautical miles. That’s why 130 NM is the correct choice. For reference, terminal is about 25 NM, low altitude about 40 NM, and military MON about 100 NM.