ARLA/CLUSTER: Radioamadores da Africa do Sul mobilizam-se contra o PLC

[João Costa > CT1FBF]

PLT standards to be discussed at SABS TC73 meeting

On Wednesday at the SABS TC73 electromagnetic compatibility meeting,
PLT standards will come under the spotlight when proposed CISPR 22
standards are discussed.

There has been a flurry of international activity to convince CISPR
not to accept reduced standards when it meets later this year.

The IARU has requested national societies to lobby their local CISPR
representative to support the IARU's call to protect the HF frequency
spectrum by setting standards that adequately protect the spectrum.

The South African Radio League (SARL) has submitted documentation to
the South African CISPR representative and will be represented at the
TC73 this Wednesday.

CISPR is the Special International Committee on Radio Interference of
the International Electro technical Commission, IEC, with central
office in Geneva, Switzerland. It is concerned with the development of
standards regarding electromagnetic interference and most of these
standards are adopted by the European Union and many other countries.

Disturbance limits for Power Line Telecommunications (PLT) systems are
defined by the standard CISPR 22 and its European equivalent EN 55 022
entitled "Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement".

The SABS last week also distributed a document entitled "IEC/CISPR
Threatens Radio Services by a Planned 18 dB Relaxation of PLT
Disturbance Limits" authored by Karl Fischer, DJ5IL.

A copy is available: http://www.amateurradio.org.za/plcsarl.htm

Fonte: Web site The South African Radio League (SARL)