Electrosensitivity 


Fiber Optic Cables


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Fiber Optic Cables


In 2019 some people in Austria and Sweden in Europe and in North America reported feeling ill after new fiber optic cables were installed to their homes.


There appear to be two common problems. These arise, not from the fiber optic cable itself, but from either the type of mechanism used to link it to the home internet cables, or from loading the fiber optic cable with bioactive RF signals.

  • GPON or Gigabit Passive Optical Networks should be used with passive splitters -i.e. without electrical powering.
  • The fiber optic network should not be used for local 5G delivery in case this puts RF radiation into the cables.


The problem can be termed Electromagnetic Interference (EMI) or Dirty Electricity (DE). This is possible wherever electrical devices put additional frequencies onto the original signal, causing EM interference with other equipment or biologically.

  • This typically happens with power adaptors and chargers such as those for modems and routers. Their switched-mode power supply (SMPS) often causes EMI on ethernet cables. Sometimes opting for lower bandwidth and lower speeds can help reduce EMI. The same problem can arise from solar panel invertors which can put EMI onto the house wiring.
  • PoE (Power over Ethernet) or dLAN (Direct Local Area Network) or PLC (Power Line Communication) adaptors or connectors can also cause bioactive EMI or 'dirty electricity'.


EMI can still occur on DSL (Digital Subscriber Loop/Line) using traditional copper telephone wires, but these are more limited in the bandwidth they can carry.  From 1988 ADSL (Asymmetric Digital Subscriber Line) allowed increased data transmission on top of the analogue voice component.