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== What you need to know == | == What you need to know == | ||
[[Image:Vwiki123.jpg|thumb|320px]] | [[Image:Vwiki123.jpg|thumb|320px]] | ||
The Automatic Direction Finder uses a transmitter and aerial on the ground , an NDB (Non Directional Beacon) that allows the ADF instrument to point to the aerial that is tuned at a specified frequency . So, no matter what direction you are travelling in, the needle (the "middle" portion that moves from side to side tells you how close or far away you are from your | The Automatic Direction Finder uses a transmitter and aerial on the ground , an NDB (Non Directional Beacon) that allows the ADF instrument to point to the aerial that is tuned at a specified frequency . So, no matter what direction you are travelling in , the main part of the needle points to the Actual Radio Aerial Position . | ||
(the "middle" portion that moves from side to side , tells you how close , or far away , you are from your Desired Course . this part of the needle is called the CDI (Course Deviation Indicator) | |||
In the RMI (Radio Magnetic Indicator) we can select a plain ADF frequency or the more information rich VOR signal, which is similar but has more information. It points to a selected direction 0-360 to the beacon you which once the needle is pointing at twelve o' clock or straight forward toward your selected VOR ( vor = Vhf (very high frequency) Omnidirectional Range-finder )you can press F12 and enter your current heading plus or minus 180, in the radial box on the nav1 line. | |||
The current should read 280 by default change that to the heading you are on when the needle is pointing forward ie 12 bells | The current should read 280 by default change that to the heading you are on when the needle is pointing forward ie 12 bells |
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