Discussion
What determines the number of hops on a long microwave route?
Answer: A
Hop length is set by line of sight geometry over the terrain and by the fade margin achievable at the chosen frequency, and the route is divided accordingly. Existing sites, capacity and spectrum influence the design but do not determine the hop count. In flat country hops of fifty kilometres are possible at lower microwave frequencies, while mountainous terrain may force much shorter ones. Geometry first, then margin, then everything else, is the order in which a route is planned.
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