LESSON 4
A SYNOPSIS OF RADIO WAVE PROPAGATION
SCOPE ......................Earth's propagation environment; principal
modes
of
propagation;
line-of-sight
propagation; refraction mode; surface wave
propagation; waveguide and mixed mode.
AVERAGE COMPLETION TIME ....2 Hours
TEXT ASSIGNMENT ............Read lesson
4
and
complete
all
lesson
exercises.
MATERIALS REQUIRED .........No. 2 lead pencil.
SUGGESTIONS ................Refer to page 102 for the meaning
of
acronyms and abbreviations used.
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