VHF Omni-directional Range (VOR)
VORs operate within the 108.0 to 117.95 MHz frequency band and have a power output necessary to provide coverage within their assigned operational service volume. They are subject to line-of-sight restrictions, and the range varies proportionally to the altitude of the receiving equipment.
- During periods of maintenance, the facility may radiate a T-E-S-T code (- ● ●●● -) or the code may be removed
- Most VORs are equipped for voice transmission on the VOR frequency. VORs without voice capability are indicated by the letter “W” (without voice) included in the class designator (VORW).
Service Volumes
For IFR flight VOR must be checked every 30 days.