Discussion
What is frequency coordination between microwave links?
Answer: D
Before a link is licensed its potential to interfere with existing links, and their potential to interfere with it, is calculated from the geometry and the antenna patterns, and a frequency and polarisation are chosen to keep both within limits. Clock synchronisation, polarisation alignment and time sharing are different techniques. A shared resource allocated by calculation rather than by first come convention is what allows dense reuse of a fixed band.
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