__________________________________________________________ Radio Wave Propagation
Figure 2-Sum 2. Phase Shift of Reflected Radio Waves
The earth's atmosphere is divided into three separate layers: the troposphere,
the stratosphere, and the ionosphere.
The troposphere is the region of the atmosphere where virtually all weather
phenomena take place. In this region, RF energy is greatly affected.
The stratosphere has a constant temperature and has little effect on radio
waves.
The ionosphere contains four cloud-like layers of electrically charged ions,
which aid in long distance communications.
Ground waves and sky waves are the two basic types of radio waves that
transmit energy from the transmitting antenna to the receiving antenna.
Figure 2-Sum 3. Ground and Sky Waves
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