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EMI - Electromagnetic Interference to
radio and TV reception may result from the associated receivers being located in a hostile
environment or in an area where the available signal is inadequate (i.e. in a fringe area or
receive signal shadow).
The Australian Communications Authority (ACA) is the government body responsible
for the investigation of radio and TV interference and should be the initial point of contact.
Where the solution to the problem is outside the domain of the ACA or where
independent advice is desired, EMC Services is able to provide assistance with engineering services
required, to devise and implement solutions or to carry out an in-depth investigation and to report
on the problem.
EMI - Electromagnetic Interference from Powerlines
The most common cause of EMI electromagnetic interference to radio and TV
emanates from the arcing and corona occurring on high voltage power lines.
This interference is strongest in areas close to power lines and remote from
the broadcast transmitter or where the reception of radio and TV is poor. Details of this and
other forms of interference are given on the ACMA’s
website.
The elimination of this form of electromagnetic interference (EMI) is
ultimately the responsibility of the power authority.
EMCS provides assistance to consumers, power authorities and industry in devising and applying
solutions to all forms of interference; we are Australia’s most experienced electromagnetic
interference (EMI) consultancy.
EMI - Electromagnetic from ISM Equipment
Industrial Scientific and Medical (ISM) equipments are a potential source of
electromagnetic interference (EMI) to communications and navigation equipment.
Most common of these is interference to aircraft flying overhead however nearby
communications installations and general communications users may also be
affected.
Radiation by ISM sources is limited under Australia Standard AS/NZS CISPR 11 in both
horizontal and vertical directions.
The electromagnetic interference (EMI) characteristics of ISM equipment is spurious
to the primary function of the apparatus and should be checked annually.
A convenient and appropriate time is when the safety hazards of the equipment is
also being evaluated. EMCS is fully accredited to perform EMI testing.
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