RMIT Flight Training
VOR Operations
VOR OPERATIONS
Aim: To learn the principles behind the operation of the VOR navigation system. Application: - orientation (where am I?) - supplementary navigation information - IFR instrument approaches Definitions: VOR - VHF Omni-directional Radio Range Radial - is a magnetic track emitted FROM a VOR station. There are 360 of them, hence omni. Principles: operates on frequencies between 112.1 and 117.9MHz (VHF radio band - line of sight transmissions) Ground Station - transmits two VHF signals: The reference phase signal, which is omni-directional (ie: same in all directions) The variable phase signal, which rotates uniformly at a rate of 1800RPM, with its phase varying at a constant rate throughout the 360 Two signals transmitted are: - in phase at magnetic North - 90 out of phase at magnetic East - 180 out of phase at South - 270 out of phase at magnetic West - 360 out of phase (back in phase) at magnetic North
RMIT Instructor Rating Mass Briefs Issue 1 /2004 Page 1
Brief 19
飞行翻译公司 www.aviation.cn 本文链接地址：RMIT飞行训练课件 19. VOR操作 19. RFT VOR Operations.pdf
VOR Operations
VOR OPERATIONS
Aim: To learn the principles behind the operation of the VOR navigation system. Application: - orientation (where am I?) - supplementary navigation information - IFR instrument approaches Definitions: VOR - VHF Omni-directional Radio Range Radial - is a magnetic track emitted FROM a VOR station. There are 360 of them, hence omni. Principles: operates on frequencies between 112.1 and 117.9MHz (VHF radio band - line of sight transmissions) Ground Station - transmits two VHF signals: The reference phase signal, which is omni-directional (ie: same in all directions) The variable phase signal, which rotates uniformly at a rate of 1800RPM, with its phase varying at a constant rate throughout the 360 Two signals transmitted are: - in phase at magnetic North - 90 out of phase at magnetic East - 180 out of phase at South - 270 out of phase at magnetic West - 360 out of phase (back in phase) at magnetic North
RMIT Instructor Rating Mass Briefs Issue 1 /2004 Page 1
Brief 19
飞行翻译公司 www.aviation.cn 本文链接地址：RMIT飞行训练课件 19. VOR操作 19. RFT VOR Operations.pdf
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