What is the VOR service volume for the L (Low) designation?

What is the VOR service volume for the L (Low) designation?

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

Answer: (B)

VOR service volumes tell you how far the VOR signal is considered usable based on your altitude. The designation Low is for low-altitude use, and its service volume is 40 nautical miles. This means within about 40 NM of the station (typically up to around 18,000 ft MSL) the VOR signal should be reliable for navigation. Higher-altitude designs cover larger areas, with the High volume extending to about 130 NM, and the Terminal volume around 25 NM. MON isn’t the standard designation for a VOR service volume. So the L designation corresponds to 40 NM.

VOR service volumes tell you how far the VOR signal is considered usable based on your altitude. The designation Low is for low-altitude use, and its service volume is 40 nautical miles. This means within about 40 NM of the station (typically up to around 18,000 ft MSL) the VOR signal should be reliable for navigation. Higher-altitude designs cover larger areas, with the High volume extending to about 130 NM, and the Terminal volume around 25 NM. MON isn’t the standard designation for a VOR service volume. So the L designation corresponds to 40 NM.