PURPOSE
Satellite dishes function as parabolic reflectors. The purpose of a dish is to focus electromagnetic energy. By focusing the energy, you raise the effective power of the signal. This increase in apparent siglan strength over the original transmitted strenth is called gain. Light and radio waves are both forms of electromagnetic energy so principles from the field of optics apply to radio frequency transmission.
DISH SHAPES & TYPES
- SINGLE FEED
- Prime Focus
- Offset fed
- MULTI-FEED
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