Note The Reg report;
http://www.theregister.co.uk/content/22/33853.html

Wonder if Ofcom will be asking Mr. Marchant about the Scottish and
Southern system in Crieff and the radio spectrum pollution issue
documented by the BBC?

The BBC report is here;
http://www.bbc.co.uk/rd/pubs/whp/whp067.html
Brief extract from the report;
The degree of interference to reception varied somewhat with location,
between "annoying," and a level sufficient to make the broadcast
completely unintelligible. The latter was certainly the case just
beyond the nearby premises where a repeater was known to be situated
(item 15) but some other locations were almost as bad, although the
reason why these were worse than others was not always immediately
apparent. Some correlation was noted with the underground run of the
main distributor cable. Curiously the location near to the sub-station
was not the worst although badly affected.

The Radiocommunications Agency is also concerned about PLC/PLT
interference issues and has published a full report on the Crieff
system here;
http://www.radio.gov.uk/topics/resea...c/edcrie_2.pdf

Article 4a of directive 89/336/EEC states;
"The apparatus referred to in Article 2 shall be so constructed that:
(a) the electromagnetic disturbance it generates does not exceed a
level allowing radio and telecommunications equipment and other
apparatus to operate as intended;"

IANAL but it looks as if Mr. Marchant's company may be operating their
powerline broadband system in contravention of the EMC regulations.