HF radio users, the Austrian Ministry of Telekom has published some audio files that have been recorded during the national emergency communications exercise on 1.May 2006. The recordings demonstrate the interference effect on HF communication on frequencies between 3,5MHz and 10,15Mhz apparently caused by powerline communications on mains wiring in the city of Linz.
The audiorecordings show contacts of stations from military (OEY) and safety of life services (OEK) with amateurs OE1-9).
Three different situations have been used to document this negative effect on this yearly « Safety of Life » exercise:
1) location with no Powerline network nearby
2) location with Powerline (PLC,PLT,BPL) in operation, but low data traffic
3) location with Powerline network and heavy data traffic
Listen yourself and decide if Powerline Communication (Broadband over Powerline) could cause harmful interference as defined in the Radio Regulations by ITU or in the EMC directive by European Commission.
Also note the overview table documenting the levels of radiation measured by the Federal Ministry (BMVIT) on public streets in an area where MainNet BPL (PLT, PLC) equipment (e.g. Powerline modems carrying a CE mark) is deployed.
It might be of particular interest that reported cases of harmful interference during a national emergency communication exercise (1.May 2006) happened several months after the Federal Ministry BMVIT had firmly ordered the powerline network operators to stop interference (Nov.2005) and a speaker of the Ministry even stated, that FINES have been imposed against the network operator already.
If you find this information helpful please distribute to appropriate person.
Austrian Amateur Radio Society