The subject of radio navigation provides the knowledge required to use radio navigation aids effectively and to navigate safely through controlled and uncontrolled airspace. Radio navigation covers a wide range of technologies and concepts, from classic ground radio stations to modern satellite navigation systems. This article provides an overview of the content of this subject. It is important to emphasise that this is only part of the content covered in the theory training.
Basics of radio technology
1. electromagnetic waves
- Definition:
- Radio waves are electromagnetic waves that are used to transmit information.
- Properties:
- Frequency (Hz): Determines the wavelength. The higher the frequency, the shorter the wavelength. Frequencies in the VHF range (Very High Frequency) are particularly relevant for aviation.
- Amplitude: Affects the signal strength and range.
- Phase modulation: Used by certain navigation systems such as VOR to transmit directional information.
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