Document: 
''Study of the Impact of Non-Linear Distortion on the Management of the Radio Spectrum''https://www.anacom.pt/render.jsp?contentId=551291https://www.anacom.pt/render.jsp?contentId=55129 (2673 Kb) (in Portuguese)
Author: José Pedro Mateiro Matias Borrego (12 Kb)
Summary: With radio communication systems taking on a crucial role in the life of modern societies, solid growth has quickly taken root, both in the number of radiocommunication stations and in the quantity of frequencies used. Often, on the same site.
In these radio environments, where various transmitters and receptors co-exist, it is common for problems of interference to arise which do not stem from external disruptive sources but rather from non-linear phenomena affecting RF equipment contributing to the degradation of the signal being transmitted or received, or ultimately to the generation of spectral content that is of no interest occupying unnecessary resources.
Many of these phenomena have particular relevance in sites with a strong density of radio equipment, where there are high power levels, and may occur in the transmitters, receivers or even in the passive components.
This study aims to address, in a general way, the problems of non-linear distortion, paying particular attention to passive intermodulation (PIM).
Please see:
Programmehttps://www.anacom.pt/render.jsp?contentId=571070
Executive summary1https://www.anacom.pt/render.jsp?contentId=55129 (65 Kb) (in Portuguese)
Presentation (1599 Kb) (in Portuguese)
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1 This study, including its presuppositions and conclusions, is the exclusive responsibility of its authors and does not necessarily represent nor isit in any way binding upon the position of ANACOM.
