These are the ownship tests, and they may be conducted in the air or on the ground. In the absence of a VOT, you may use other checkpoints designated in the Supplement. the needle must be centered when the OBS is from 176 to 184 degrees or 356 to 004 degrees. The tolerance must be within four degrees, i.e.The TO/FROM flag should indicate TO with 180 degrees (+/- 4) selected. Turn up the volume to identify the station, which is indicated by a series of dots or one continuous tone.Tune to the appropriate frequency annotated in the Supplement.The Supplement will make note of which areas on the airport will not work. Ensure you are situated on the airport in an appropriate area – the parking apron, taxiway, or end of runway.The supplement indicates which airports have the test equipment, which frequency to use, and any other notes specific to that location. You can discover which airports do have a test facility in Section 4 of the FAA Chart Supplement (formerly known as the Airport Facility Directory ). The VOR Test Facility (VOT) is the most accurate and is the preference to check your VOR receiver. Let’s take a closer look at the steps to check your VOR receiver using this acronym. This stands for VOT, Ownship, Dual, Ground, Air. The acronym most taught to IFR students is VODGA. There’s an easy acronym to remember about these tests, including tolerances – do you know it? The FAA allows pilots a handful of different methods for checking VOR receivers. The check must also be logged in the aircraft records.įortunately, these are checks that pilots can accomplish on their own, and in many different ways. That doesn’t mean that it’s not a good idea.Īnd for IFR pilots, how often do the Federal Aviation Regulations say you must check your receiver when using it for instrument flying?Īccording to FAR 91.171, you may not conduct an IFR flight using VORs for navigation unless your VOR system has been checked within the preceding 30 days and found to be in limits. The answer for VFR pilots is, well, no you’re not required to check your VOR receiver. When was the last time you checked your VOR receiver? As an IFR pilot, how often are you required to do this test? What about as a VFR pilot? Are you required to check your VOR receiver?
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