ARLA/CLUSTER: ITU - Forúm teme e destaca as interferencias pelos PLT

[João Costa > CT1FBF]

PLT - Forum highlights radio interference fears

At an ITU forum discussing the problem of polluting PLT devices, Dr
Hamadoun Touré, Secretary-General, ITU, cautioned service providers
and others against rolling out technologies conforming to
specifications that do not meet ITU requirements.

The ITU press release says:

Concerns that home networking products using power line transmission
(PLT) technology may cause interference with radio services led to a
Forum last week in Geneva to address the issue. ITU’s own home
networking standard ITU-T G.hn was considered to have electromagnetic
compatibility (EMC) and mitigation techniques that go well beyond
those considered essential for protecting radio services.

Given the variety of electronic devices in our homes, strict EMC
requirements are imperative. Over-the-air broadcast services in
particular could be subject to interference from PLT systems.

The event took place in parallel with an interoperability event giving
ITU-T G.hn chipset vendors the opportunity to test their products,
which will be on the market later this year. It brought together radio
spectrum experts from national regulators, service providers, and
product manufacturers, as well as standards development organizations
(SDOs) and industry alliances including ETSI, IEC, IEEE, HomeGrid
Forum, IARU, NAJO/IAU and HomePlug.

The Forum successfully achieved its goal of agreeing on commitments
and future actions by all stakeholders to resolve interference issues
in the interest of consumers. A key conclusion is that ITU will act as
the focal point for coordinating other SDOs and industry alliances in
order to agree further developments.

“There are PLT products on the market that do not conform to the
necessary EMC standards, and this is very much a concern,” says Dr
Hamadoun Touré, Secretary-General, ITU. “We are fortunate in ITU to
have telecom and radio experts from both the private sector,
government and regulators. Together they have agreed the necessary
requirements to ensure that products conforming to ITU standards do
not cause interference, which may have potentially serious
consequences. We would caution service providers and others against
rolling out technologies conforming to specifications that do not meet
ITU requirements.”

John Shaw, representing BBC World Service, said at the meeting: "For
broadcasters, it is extremely important that products sold do not
interfere with the reception of programmes or reduce coverage. We
applaud the efforts of ITU to ensure international acceptance of the
organization's stringent guidelines on compatibility between
electronic communication systems and the use of the radio frequency
spectrum." Similar views were also expressed by representatives of the
aeronautical and radio astronomy communities.



Ban Powerline Technology
http://www.ban-plt.co.uk/

Parliament PLT debate
http://www.southgatearc.org/news/may2011/plt_debate_text.htm

UKQRM are a group fighting this interference
http://groups.yahoo.com/group/UKQRM/