- Propagation considerations -Summary

PROPAGATION:

• a vital part of system design and planning

  • wanted signal
  • sharing situation

• dependent on location, i.e. climate

• new systems lead to new considerations

  • frequencies
  • geometries

• 70 ITU-R Recommendations on propagation

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• Propagation plays an essential part in design and planning of a system, both for achieving the wanted signal quality and also – equally important – to see whether sharing is feasible with other systems.

• Most propagation effects are always dependent on location due to climate variability; (same would be true with ionospheric propagation)

• Propagation research and development is never completed – always new systems in the pipeline having new parameters and new geometries (i.e. types of propagation path) to consider.

• ITU-R studies in SG 3; currently 70 Recommendations in P series covering most areas of propagation.