What is the service volume range for a low VOR station?

The service volume range for a low VOR station is accurately defined as 1,000 feet to 18,000 feet with a range of 40 nautical miles. The low VOR is designed primarily to provide navigation guidance to aircraft operating at lower altitudes, primarily within the lower levels of controlled airspace, where the altitude and the range are suitable for the types of operations typically conducted in that environment.

Understanding altitude limitations is crucial, as climbing above 18,000 feet typically involves transitioning to high altitude airspace, where high VORs, with different specifications, would come into play to accommodate higher altitude navigation. Additionally, the specified 40 nautical mile range is established to ensure that the VOR signal is reliable and usable for pilots navigating in the airspace where these facilities operate. Overall, the designated service volume parameters ensure that the navigational aids are effective for the intended operational environment.