Question Pool -- Category E3
You may shorten the list of categories by choosing
one of the ten category groups.
Select one of the following categories. You will be presented
questions at random. Return here when you are ready to try
another category.
- E3A
- Earth-Moon-Earth (EME or moonbounce) communications; meteor
scatter
- E3B
- Transequatorial; long path; gray line
- E3C
- Auroral propagation; selective fading; radio-path horizon; take-
off angle over flat or sloping terrain; earth effects on propagation
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