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Before a microwave link can be installed, an analysis and calculation of the microwave link must be made first. The analysis should take place before the site survey itself to get a clear idea about the dimensions of the antennas. The analysis consists of the following steps:

  • Free space loss calculation

  • Link budget calculation

  • Rain attenuation

  • Multipath fading

  • Fade margin

  • Fresnel zones calculation

This chapter explains the individual steps and an example of link design is given at the end.

NOTE: For quick reference you can use the calculator on

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